# 10-Channel AC Power Sequencer ## Description Low-voltage control and power-control electronics for a 10-channel 220 V AC power sequencer using ESP32, shift registers, OLED display, and isolated/high-current AC sections to be added later. ## Project Details - **Owner:** minsoo1 - **Created:** 6/15/2026 - **Last Updated:** 6/18/2026 - **Visibility:** Public ## Key Components ### D1 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Part Type: LED - Mount: Through Hole - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf - Compliance: Green - Manufacturer Part Number: WP483GDT - Role: Status LED - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - Manufacturer Name: Kingbright **Pins:** - 1 [pin 1] - 2 [pin 2] ### D10 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Part Type: Diode - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Role: Clamping - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi **Pins:** - anode [pin 2] - cathode [pin 1] ### D11 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Role: Clamping - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Part Type: Diode **Pins:** - anode [pin 2] - cathode [pin 1] ### D12 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Part Type: Diode - Role: Clamping - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Manufacturer Name: onsemi - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - anode [pin 2] - cathode [pin 1] ### D13 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Part Type: Diode - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role: Clamping - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 **Pins:** - anode [pin 2] - cathode [pin 1] ### D14 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Manufacturer Name: onsemi - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Clamping - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Part Type: Diode - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path **Pins:** - anode [pin 2] - cathode [pin 1] ### D15 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Part Type: Diode - Role: Clamping - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi **Pins:** - anode [pin 2] - cathode [pin 1] ### D16 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Manufacturer Name: onsemi - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Part Type: Diode - Role: Clamping - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf **Pins:** - anode [pin 2] - cathode [pin 1] ### D17 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Part Type: Diode - Role: Clamping - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Manufacturer Name: onsemi - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - anode [pin 2] - cathode [pin 1] ### D18 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Role: Clamping - Part Type: Diode **Pins:** - anode [pin 2] - cathode [pin 1] ### D19 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role: Clamping - Part Type: Diode - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Manufacturer Name: onsemi **Pins:** - anode [pin 2] - cathode [pin 1] ### D20 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role: Clamping - Part Type: Diode - Manufacturer Part Number: 1N4148 - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi **Pins:** - anode [pin 2] - cathode [pin 1] ### D21 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Part Type: Diode - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role: Clamping - Manufacturer Name: onsemi - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - anode [pin 2] - cathode [pin 1] ### D22 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Part Type: Diode - Role: Clamping - Manufacturer Name: onsemi - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 **Pins:** - anode [pin 2] - cathode [pin 1] ### D23 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Part Type: Diode - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role: Clamping - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 **Pins:** - anode [pin 2] - cathode [pin 1] ### D24 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Role: Clamping - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Part Type: Diode **Pins:** - anode [pin 2] - cathode [pin 1] ### D25 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Clamping - Manufacturer Name: onsemi - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Part Type: Diode **Pins:** - anode [pin 2] - cathode [pin 1] ### D26 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Role: Clamping - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 - Manufacturer Name: onsemi - Part Type: Diode - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path **Pins:** - anode [pin 2] - cathode [pin 1] ### D27 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Part Type: Diode - Manufacturer Part Number: 1N4148 - Role: Clamping - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Manufacturer Name: onsemi **Pins:** - anode [pin 2] - cathode [pin 1] ### D28 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Part Type: Diode - Role Details: 1N4148 low-current rectifier/clamp diode in isolated PT ADC sensing circuit - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role: Rectification - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 **Pins:** - anode [pin 2] - cathode [pin 1] ### D29 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Role: Rectification - Part Type: Diode - Role Details: 1N4148 low-current rectifier/clamp diode in isolated PT ADC sensing circuit - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 **Pins:** - anode [pin 2] - cathode [pin 1] ### D30 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Role Details: 1N4148 low-current rectifier/clamp diode in isolated PT ADC sensing circuit - Part Type: Diode - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Role: Rectification - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 - Manufacturer Name: onsemi **Pins:** - anode [pin 2] - cathode [pin 1] ### D31 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Role: Rectification - Manufacturer Name: onsemi - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 1N4148 low-current rectifier/clamp diode in isolated PT ADC sensing circuit - Part Type: Diode - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf **Pins:** - anode [pin 2] - cathode [pin 1] ### D32 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Role Details: 1N4148 low-current rectifier/clamp diode in isolated PT ADC sensing circuit - Part Type: Diode - Role: Rectification - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf **Pins:** - anode [pin 2] - cathode [pin 1] ### D33 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Manufacturer Name: onsemi - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 1N4148 low-current rectifier/clamp diode in isolated PT ADC sensing circuit - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Part Type: Diode - Role: Rectification **Pins:** - anode [pin 2] - cathode [pin 1] ### D8 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Part Type: Diode - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4148 - Role: Clamping - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path **Pins:** - anode [pin 2] - cathode [pin 1] ### D9 — [1N4148](https://www.flux.ai/adrian95/1n4148~mnh.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n914-d.pdf - Part Type: Diode - Manufacturer Part Number: 1N4148 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Clamping - Role Details: 1N4148 series isolation diode for relay low-side diode-OR path - Manufacturer Name: onsemi **Pins:** - anode [pin 2] - cathode [pin 1] ### J1 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Part Type: Connector - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=ElhbUlFSRlUNBF0CQlQIBQBUFFILBFEAQVVWUgZWE1gxVlNRQVVdVFRSQ1daVDsOAxUeFF5JWBYZEEoBGA4JCwFIFA4DSA%3D%3D - Role Details: 24V DC low-voltage input connector from external SMPS - Role: Power Input - Manufacturer Name: DORABO **Pins:** - 1 [pin 1] - 2 [pin 2] ### J10 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Voltage Rating: 24V - Power: 0.9W - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Part Type: Connector - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 - Current: 0.0375A - Current Rating: 0.5A - Operating Voltage: 24V - Manufacturer Name: DORABO - Role: Switching - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Mount: Through Hole - Package or Case Code: CONN-TH - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html **Pins:** - 1 [pin 1] - 2 [pin 2] ### J11 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Voltage Rating: 24V - Package or Case Code: CONN-TH - Role: Switching - Current: 0.0375A - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Operating Voltage: 24V - Manufacturer Name: DORABO - Mount: Through Hole - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 - Power: 0.9W - Current Rating: 0.5A - Part Type: Connector - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html **Pins:** - 1 [pin 1] - 2 [pin 2] ### J12 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Role Details: Connector for isolated PT secondary from off-board HAHN BV 201 0128 potential transformer. Selected PT: 230VAC primary to 6VAC secondary, 0.35VA, 58mA, encapsulated PCB transformer class; primary/mains side must stay physically separated from low-voltage section. J12 only accepts the isolated 6VAC secondary. - Substitute Manufacturer Part Number: HAHN BV 201 0128 potential transformer, off-board/PT primary side - Current Rating: 0.058A - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=ElhbUlFSRlUNBF0CQlQIBQBUFFILBFEAQVVWUgZWE1gxVlNRQVVdVFRSQ1daVDsOAxUeFF5JWBYZEEoBGA4JCwFIFA4DSA%3D%3D - Part Type: Connector - Manufacturer Name: DORABO - Operating Voltage: 6V - Reference Design URL: https://www.tme.eu/en/details/bv2010128/pcb-transformers/hahn/bv-201-0128/ - Role: Isolation **Pins:** - 1 [pin 1] - 2 [pin 2] ### J2 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Current: 0.0375A - Manufacturer Name: DORABO - Voltage Rating: 24V - Operating Voltage: 24V - Package or Case Code: CONN-TH - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Role: Switching - Current Rating: 0.5A - Power: 0.9W - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Part Type: Connector - Mount: Through Hole - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 **Pins:** - 1 [pin 1] - 2 [pin 2] ### J3 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Part Type: Connector - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Current Rating: 0.5A - Package or Case Code: CONN-TH - Role: Switching - Current: 0.0375A - Power: 0.9W - Voltage Rating: 24V - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Operating Voltage: 24V - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Mount: Through Hole - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 - Manufacturer Name: DORABO **Pins:** - 1 [pin 1] - 2 [pin 2] ### J4 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 - Package or Case Code: CONN-TH - Power: 0.9W - Part Type: Connector - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Mount: Through Hole - Role: Switching - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Manufacturer Name: DORABO - Voltage Rating: 24V - Current Rating: 0.5A - Operating Voltage: 24V - Current: 0.0375A **Pins:** - 1 [pin 1] - 2 [pin 2] ### J5 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Current Rating: 0.5A - Current: 0.0375A - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Power: 0.9W - Role: Switching - Operating Voltage: 24V - Manufacturer Name: DORABO - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Part Type: Connector - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 - Package or Case Code: CONN-TH - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Voltage Rating: 24V - Mount: Through Hole **Pins:** - 1 [pin 1] - 2 [pin 2] ### J6 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Mount: Through Hole - Package or Case Code: CONN-TH - Current: 0.0375A - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Part Type: Connector - Role: Switching - Current Rating: 0.5A - Operating Voltage: 24V - Voltage Rating: 24V - Manufacturer Name: DORABO - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html - Power: 0.9W - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 **Pins:** - 1 [pin 1] - 2 [pin 2] ### J7 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Part Type: Connector - Mount: Through Hole - Current Rating: 0.5A - Voltage Rating: 24V - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Operating Voltage: 24V - Power: 0.9W - Manufacturer Name: DORABO - Package or Case Code: CONN-TH - Role: Switching - Current: 0.0375A **Pins:** - 1 [pin 1] - 2 [pin 2] ### J8 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Package or Case Code: CONN-TH - Power: 0.9W - Voltage Rating: 24V - Mount: Through Hole - Operating Voltage: 24V - Role: Switching - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Part Type: Connector - Current: 0.0375A - Current Rating: 0.5A - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 - Manufacturer Name: DORABO - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. **Pins:** - 1 [pin 1] - 2 [pin 2] ### J9 — [DB127V-5.08-2P-GN-S](https://www.flux.ai/cherepanyadima/db127v-5p08-2p-gn-s~ic.md) - Current: 0.0375A - Reference Design URL: https://www.wooriparts.com/upload/pdf/p162174_HR85.pdf - Substitute Manufacturer Part Number: External relay: HANKUK HR85AKS-DC24 / HR85AKS DC024 - Role Details: Off-board relay coil connector only for HANKUK HR85AKS-DC24 relay channel. Provides 24V_RELAY and low-side relay sink wiring to external 24VDC relay coil; relay contacts are not on this low-voltage PCB. External relay: 24VDC coil, 37.5mA nominal, 0.9W, 40A at 240VAC resistive contact rating. - Manufacturer Part Number: DB127V-5.08-2P-GN-S - Datasheet URL: https://www.lcsc.com/datasheet/C3018698.pdf - Part Type: Connector - Operating Voltage: 24V - Package or Case Code: CONN-TH - Voltage Rating: 24V - Manufacturer Name: DORABO - Product Info Url: https://lcsc.com/product-detail/Screw-terminal-blocks_DORABO-DB127V-5-08-2P-GN-S_C3018698.html - Mount: Through Hole - Role: Switching - Current Rating: 0.5A - Power: 0.9W **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED1 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf - Part Type: LED - Role: Status LED - Mount: Through Hole - Manufacturer Name: Kingbright - Compliance: Green - Manufacturer Part Number: WP483GDT - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED2 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Manufacturer Name: Kingbright - Role: Status LED - Compliance: Green - Manufacturer Part Number: WP483GDT - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf - Mount: Through Hole - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED3 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Manufacturer Name: Kingbright - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - Compliance: Green - Manufacturer Part Number: WP483GDT - Role: Status LED - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf - Part Type: LED - Mount: Through Hole **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED4 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - License: https://creativecommons.org/licenses/by/4.0/ - Compliance: Green - Manufacturer Part Number: WP483GDT - Manufacturer Name: Kingbright - Part Type: LED - Mount: Through Hole - Role: Status LED - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED5 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - Mount: Through Hole - Part Type: LED - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf - Manufacturer Part Number: WP483GDT - Compliance: Green - License: https://creativecommons.org/licenses/by/4.0/ - Role: Status LED - Manufacturer Name: Kingbright **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED6 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf - Part Type: LED - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - Mount: Through Hole - Manufacturer Name: Kingbright - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: WP483GDT - Compliance: Green - Role: Status LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED7 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Manufacturer Name: Kingbright - Role: Status LED - Manufacturer Part Number: WP483GDT - Compliance: Green - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - Mount: Through Hole - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED8 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: WP483GDT - Compliance: Green - Manufacturer Name: Kingbright - Mount: Through Hole - Part Type: LED - Role: Status LED - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED9 — [WP483GDT](https://www.flux.ai/adrian95/wp483gdt.md) - Part Type: LED - Mount: Through Hole - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP483GDT.pdf - Role Details: Channel status indicator LED driven from 74HC595 output via series resistor - Compliance: Green - Manufacturer Part Number: WP483GDT - Role: Status LED - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Kingbright **Pins:** - 1 [pin 1] - 2 [pin 2] ### Q1 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Role: Switching - Manufacturer Name: Solid State Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 2N2222 - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q10 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Solid State Inc. - Manufacturer Part Number: 2N2222 - Part Type: Transistor - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Role: Switching **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q11 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 2N2222 - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Manufacturer Name: Solid State Inc. - Part Type: Transistor - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Role: Switching **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q2 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Manufacturer Part Number: 2N2222 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Solid State Inc. - Part Type: Transistor - Role: Switching - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q3 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Role: Switching - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Manufacturer Part Number: 2N2222 - Manufacturer Name: Solid State Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q4 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Manufacturer Part Number: 2N2222 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Solid State Inc. - Role: Switching - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q5 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Role: Switching - Manufacturer Part Number: 2N2222 - Manufacturer Name: Solid State Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q6 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Manufacturer Part Number: 2N2222 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Solid State Inc. - Role: Switching - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Part Type: Transistor - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q8 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch - Role: Switching - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Solid State Inc. - Manufacturer Part Number: 2N2222 - Part Type: Transistor - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q9 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Role: Switching - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Solid State Inc. - Manufacturer Part Number: 2N2222 - Part Type: Transistor - Role Details: Manual override NPN low-side relay coil sink, base driven through 1k from DPDT latching switch **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### S2 — [B3FS-1002P](https://www.flux.ai/adrian95/b3fs-1002p.md) - Role: Switching - Manufacturer Name: Omron Electronics Inc-EMC Div - Role Details: Momentary setup/menu button, active-low into 74HC165 with 10k pull-up - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3fs.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: B3FS-1002P - Part Type: Electromechanical Components **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### S3 — [B3FS-1002P](https://www.flux.ai/adrian95/b3fs-1002p.md) - Part Type: Electromechanical Components - Role Details: Momentary setup/menu button, active-low into 74HC165 with 10k pull-up - Role: Switching - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3fs.pdf - Manufacturer Part Number: B3FS-1002P - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Omron Electronics Inc-EMC Div **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### S4 — [B3FS-1002P](https://www.flux.ai/adrian95/b3fs-1002p.md) - Part Type: Electromechanical Components - Role: Switching - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3fs.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: B3FS-1002P - Role Details: Momentary setup/menu button, active-low into 74HC165 with 10k pull-up - Manufacturer Name: Omron Electronics Inc-EMC Div **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### S5 — [B3FS-1002P](https://www.flux.ai/adrian95/b3fs-1002p.md) - Role: Switching - Part Type: Electromechanical Components - Role Details: Momentary setup/menu button, active-low into 74HC165 with 10k pull-up - Manufacturer Name: Omron Electronics Inc-EMC Div - Manufacturer Part Number: B3FS-1002P - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3fs.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### SW10 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Role Details: CH1 DPDT latching manual override/readback switch; one pole preserves 74HC165 active-low readback, second pole drives manual relay transistor base through 1k - Role: Switching - Manufacturer Name: Yuandi - Manufacturer Part Number: TK-6580-1 - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW11 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Role: Switching - Part Type: Switch - Role Details: CH2 DPDT latching manual override/readback switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Manufacturer Part Number: TK-6580-1 - Manufacturer Name: Yuandi **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW12 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Role: Switching - Manufacturer Name: Yuandi - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Manufacturer Part Number: TK-6580-1 - Role Details: CH3 DPDT latching manual override/readback switch - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW13 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Manufacturer Name: Yuandi - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Manufacturer Part Number: TK-6580-1 - Part Type: Switch - Role: Switching - Role Details: CH4 DPDT latching manual override/readback switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW14 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Manufacturer Name: Yuandi - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Manufacturer Part Number: TK-6580-1 - Role: Switching - Role Details: CH5 DPDT latching manual override/readback switch - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW15 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Part Type: Switch - Role Details: CH6 DPDT latching manual override/readback switch - Role: Switching - Manufacturer Name: Yuandi - Manufacturer Part Number: TK-6580-1 - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW16 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Role Details: CH7 DPDT latching manual override/readback switch - Manufacturer Part Number: TK-6580-1 - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Manufacturer Name: Yuandi - Role: Switching - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW17 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Role: Switching - Role Details: CH8 DPDT latching manual override/readback switch - Part Type: Switch - Manufacturer Part Number: TK-6580-1 - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Manufacturer Name: Yuandi **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW18 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Role Details: CH9 DPDT latching manual override/readback switch - Part Type: Switch - Manufacturer Part Number: TK-6580-1 - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Role: Switching - Manufacturer Name: Yuandi **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW19 — [TK-6580-1](https://www.flux.ai/vasyl/tk-6580-1~a3n.md) - Part Type: Switch - Manufacturer Name: Yuandi - Role: Switching - Datasheet URL: https://datasheet.lcsc.com/lcsc/2008311534_Yuandi-TK-6580-1_C528778.pdf - Manufacturer Part Number: TK-6580-1 - Role Details: CH10 DPDT latching manual override/readback switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### U1 — [MP1584EN Module](https://www.flux.ai/adrian95/mp1584en-module~x1a.md) - Manufacturer Part Number: Mini MP1584EN DC-DC - Role Details: eBoot Mini MP1584EN adjustable buck module; set output to 5.0V before connecting ESP32/logic. Common listings specify 4.5–28V input, 0.8–20V adjustable output, 1.8A typical / 3A peak, about 22x17x4mm module. Verify exact board/pin spacing before PCB release. - Operating Voltage: 24V - Max Output Voltage: 5V - Mount: Through Hole - Manufacturer Name: eBoot - Max Current: 1.8A - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Module - Package or Case Code: Module - Product Info Url: https://www.digikey.com/en/models/5291742 - Datasheet URL: https://www.digikey.com/en/models/5291742 - Role: Power Conversion **Pins:** - INPUT- [pin 8] - INPUT- [pin 7] - INPUT+ [pin 5] - INPUT+ [pin 6] - OUTPUT- [pin 4] - OUTPUT- [pin 3] - OUTPUT+ [pin 2] - OUTPUT+ [pin 1] ### U2 — [AMS1117-3.3](https://www.flux.ai/lcsc/ams1117-3p3~ewgg.md) - JLCPCB Part Class: Extended Part - Part Type: Linear Voltage Regulators (LDO) - LCSC Part Number: C347256 - Product Info Url: https://lcsc.com/product-detail/Others_Youtai-Semiconductor-Co-Ltd-AMS1117-3-3S_C347256.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409141623_UMW-Youtai-Semiconductor-Co---Ltd--AMS1117-3-3_C347256.pdf - Manufacturer Name: UMW(友台半导体) - Role: LDO Regulator - Role Details: 5V to 3.3V rail for ESP32, 74HC logic, and OLED - Package or Case Code: SOT-89_L4.5-W2.5-P1.50-LS4.2-BR - Manufacturer Part Number: AMS1117-3.3 **Pins:** - ADJ(GND) [pin 1] - VIN [pin 3] - VOUT(TAB) [pin 2] ### U3 — [ESP32-DEVKITM-1](https://www.flux.ai/adrian95/esp32-devkitm-1~ygg.md) - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf - Part Type: Development Board - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: ESP32 controller; GPIO23/18/5 drive 74HC595, GPIO19/22/21 read 74HC165, GPIO16/17 I2C OLED, GPIO36 reserved for isolated PT ADC later - Manufacturer Part Number: ESP32-DEVKITM-1 - Role: MCU - Manufacturer Name: Espressif Systems **Pins:** - 3V3 [pin 3] - EN [pin 8] - GND_1 [pin 1] - GND_10 [pin 44] - GND_11 [pin 45] - GND_12 [pin 46] - GND_13 [pin 47] - GND_14 [pin 48] - GND_15 [pin 49] - GND_16 [pin 50] - GND_17 [pin 51] - GND_18 [pin 52] - GND_19 [pin 53] - GND_2 [pin 2] - GND_20 [pin 54] - GND_21 [pin 55] - GND_22 [pin 56] - GND_23 [pin 57] - GND_24 [pin 58] - GND_25 [pin 59] - GND_26 [pin 60] - GND_27 [pin 61] - GND_28 [pin 62] - GND_29 [pin 63] - GND_3 [pin 27] - GND_4 [pin 38] - GND_5 [pin 39] - GND_6 [pin 40] - GND_7 [pin 41] - GND_8 [pin 42] - GND_9 [pin 43] - I34 [pin 9] - I35 [pin 10] - I36 [pin 4] - I37 [pin 5] - I38 [pin 6] - I39 [pin 7] - IO0 [pin 21] - IO10 [pin 26] - IO12 [pin 17] - IO13 [pin 18] - IO14 [pin 16] - IO15 [pin 19] - IO18 [pin 30] - IO19 [pin 32] - IO2 [pin 20] - IO21 [pin 34] - IO22 [pin 33] - IO23 [pin 31] - IO25 [pin 13] - IO26 [pin 14] - IO27 [pin 15] - IO32 [pin 11] - IO33 [pin 12] - IO4 [pin 22] - IO5 [pin 29] - IO9 [pin 25] - NC_1 [pin 23] - NC_2 [pin 24] - NC_3 [pin 28] - NC_4 [pin 37] - RXD0 [pin 35] - TXD0 [pin 36] ### U4 — [CD74HC595M96](https://www.flux.ai/jecstronic/cd74hc595m96~uyk.md) - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Role: Output Shift Register - Datasheet URL: https://www.ti.com/lit/ds/symlink/cd74hc595.pdf - Manufacturer Part Number: CD74HC595M96 - Role Details: 3.3V 74HC595 output expansion; first two devices provide 16 outputs for 10 channels - Part Type: Integrated Circuit **Pins:** - GND [pin 8] - OE [pin 13] - QA [pin 15] - QB [pin 1] - QC [pin 2] - QD [pin 3] - QE [pin 4] - QF [pin 5] - QG [pin 6] - QH [pin 7] - QH¶ [pin 9] - RCLK [pin 12] - SER [pin 14] - SRCLK [pin 11] - SRCLR [pin 10] - VCC [pin 16] ### U5 — [CD74HC595M96](https://www.flux.ai/jecstronic/cd74hc595m96~uyk.md) - Manufacturer Part Number: CD74HC595M96 - Role: Output Shift Register - Datasheet URL: https://www.ti.com/lit/ds/symlink/cd74hc595.pdf - Part Type: Integrated Circuit - Role Details: 3.3V 74HC595 output expansion; first two devices provide 16 outputs for 10 channels - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments **Pins:** - GND [pin 8] - OE [pin 13] - QA [pin 15] - QB [pin 1] - QC [pin 2] - QD [pin 3] - QE [pin 4] - QF [pin 5] - QG [pin 6] - QH [pin 7] - QH¶ [pin 9] - RCLK [pin 12] - SER [pin 14] - SRCLK [pin 11] - SRCLR [pin 10] - VCC [pin 16] ### U6 — [74HC165D,653](https://www.flux.ai/jecstronic/74hc165dc653~qnu.md) - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/74HC_HCT165.pdf - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Nexperia USA Inc. - Role: Input Shift Register - Role Details: 3.3V 74HC165 input expansion for latching buttons, setup buttons, and cascade input - Manufacturer Part Number: 74HC165D,653 **Pins:** - ~CE [pin 15] - ~PL [pin 1] - ~Q7 [pin 7] - CP [pin 2] - D0 [pin 11] - D1 [pin 12] - D2 [pin 13] - D3 [pin 14] - D4 [pin 3] - D5 [pin 4] - D6 [pin 5] - D7 [pin 6] - DS [pin 10] - GND [pin 8] - Q7 [pin 9] - VCC [pin 16] ### U7 — [74HC165D,653](https://www.flux.ai/jecstronic/74hc165dc653~qnu.md) - Manufacturer Name: Nexperia USA Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/74HC_HCT165.pdf - Role Details: 3.3V 74HC165 input expansion for latching buttons, setup buttons, and cascade input - Role: Input Shift Register - Manufacturer Part Number: 74HC165D,653 **Pins:** - ~CE [pin 15] - ~PL [pin 1] - ~Q7 [pin 7] - CP [pin 2] - D0 [pin 11] - D1 [pin 12] - D2 [pin 13] - D3 [pin 14] - D4 [pin 3] - D5 [pin 4] - D6 [pin 5] - D7 [pin 6] - DS [pin 10] - GND [pin 8] - Q7 [pin 9] - VCC [pin 16] ### U8 — [ULN2803A](https://www.flux.ai/jecstronic/uln2803a~8x.md) - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/e4/fa/1c/16/4e/39/49/04/CD00000179.pdf/files/CD00000179.pdf/jcr:content/translations/en.CD00000179.pdf - Role: Relay Driver - Manufacturer Name: STMicroelectronics - Part Type: Transistor Array - Manufacturer Part Number: ULN2803A - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: ULN2803A low-side driver for relay coils CH1-CH8; inputs driven from 74HC595 outputs, COM tied to 24V_RELAY for flyback clamp **Pins:** - COM [pin 10] - GND [pin 9] - I1 [pin 1] - I2 [pin 2] - I3 [pin 3] - I4 [pin 4] - I5 [pin 5] - I6 [pin 6] - I7 [pin 7] - I8 [pin 8] - O1 [pin 18] - O2 [pin 17] - O3 [pin 16] - O4 [pin 15] - O5 [pin 14] - O6 [pin 13] - O7 [pin 12] - O8 [pin 11] ### U9 — [ULN2803A](https://www.flux.ai/jecstronic/uln2803a~8x.md) - Manufacturer Part Number: ULN2803A - License: https://creativecommons.org/licenses/by/4.0/ - Role: Relay Driver - Manufacturer Name: STMicroelectronics - Part Type: Transistor Array - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/e4/fa/1c/16/4e/39/49/04/CD00000179.pdf/files/CD00000179.pdf/jcr:content/translations/en.CD00000179.pdf - Role Details: ULN2803A low-side driver for relay coils CH9-CH10; spare inputs/outputs unused for now, COM tied to 24V_RELAY **Pins:** - COM [pin 10] - GND [pin 9] - I1 [pin 1] - I2 [pin 2] - I3 [pin 3] - I4 [pin 4] - I5 [pin 5] - I6 [pin 6] - I7 [pin 7] - I8 [pin 8] - O1 [pin 18] - O2 [pin 17] - O3 [pin 16] - O4 [pin 15] - O5 [pin 14] - O6 [pin 13] - O7 [pin 12] - O8 [pin 11] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/minsoo1/10-channel-ac-power-sequencer~35](https://www.flux.ai/minsoo1/10-channel-ac-power-sequencer~35).* --- *Generated from [https://www.flux.ai/minsoo1/10-channel-ac-power-sequencer~35](https://www.flux.ai/minsoo1/10-channel-ac-power-sequencer~35)*