# Sim Scada ## Description SCADA Sensor Node v2.1 using a Heltec WiFi LoRa 32 V4 module with separate +5V and board-generated +3V3 rails, ADS131M08 8-channel ADC front end, TCA9548A I2C multiplexer, TMP102-based fan control, ULN2003A relay and fan driver, CT/pressure/analog/One-Wire/vibration/humidity/Qwiic/flow/digital sensor interfaces, relay outputs, fan connector, brownout sensing, and a 200 mm x 140 mm 2-layer layout with Heltec keepout, antenna clearance, mounting holes, and DIN-rail slots. ## Project Details - **Owner:** auzzironi - **Created:** 3/25/2026 - **Last Updated:** 5/26/2026 - **Visibility:** Public - **System Architecture:** ```mermaid flowchart TD PWR[5V Input Protection] --> P5[5V Rail] P5 --> HEL[Heltec WiFi LoRa 32 V4] P5 --> LDO[AP2112K 3.3V Regulator] P5 --> REL[ULN2003A Relay and Fan Loads] LDO --> P33[Board 3.3V Rail] P33 --> ADC[ADS131M08] P33 --> MUX[TCA9548A] P33 --> TMP[TMP102] P33 --> SENS[Sensor Interfaces and Pullups] HEL --> SPI[ADC SPI Nets] HEL --> I2C[Main I2C Bus] HEL --> OW[One Wire Bus] HEL --> GPIO[Flow DIN and Relay GPIO] HEL3V3[Heltec Internal 3.3V] -. isolated .- P33 ``` - **Mechanical Constraints:** Board 200x140 mm, 2-layer FR-4, 1.6mm thick, 4x M3 corner holes (3.2mm drill), 2x DIN clip slots 4.2x25mm centered at X=30 mm from each side and Y=center, Heltec module antenna faces board edge; no top copper/components/traces under antenna region; bottom GND allowed. - **Board Thickness:** 1.6mm - **Implementation Details:** Board size 200 mm x 140 mm, 2-layer, 1.6 mm. Heltec module antenna must face board edge with no copper/components in antenna keepout. Provide 4x M3 3.2 mm mounting holes and 2x DIN rail slots 4.2 mm x 25 mm. ## Key Components ### D1 — [BAV99-7-F](https://www.flux.ai/lcsc/bav99-7-f~un1y.md) - LCSC Part Number: C106919 - JLCPCB Part Class: Extended Part - Role Details: Input clamp for CT1 differential sense lines - Manufacturer Part Number: BAV99-7-F - Part Type: Switching Diode - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810251022_Diodes-Incorporated-BAV99-7-F_C106919.pdf - Role: Clamp - Package: SOT-23-3 - Product Info Url: https://lcsc.com/product-detail/Switching-Diode_DIODES_BAV99-7-F_BAV99-7-F_C106919.html - Manufacturer Name: DIODES(美台) **Pins:** - A [pin 1] - K [pin 3] - K [pin 2] ### D2 — [BAV99-7-F](https://www.flux.ai/lcsc/bav99-7-f~un1y.md) - Manufacturer Name: DIODES(美台) - Product Info Url: https://lcsc.com/product-detail/Switching-Diode_DIODES_BAV99-7-F_BAV99-7-F_C106919.html - Role Details: Input clamp for CT2 differential sense lines - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810251022_Diodes-Incorporated-BAV99-7-F_C106919.pdf - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Package: SOT-23-3 - Role: Clamp - Part Type: Switching Diode - Manufacturer Part Number: BAV99-7-F - LCSC Part Number: C106919 - JLCPCB Part Class: Extended Part **Pins:** - A [pin 1] - K [pin 3] - K [pin 2] ### D3 — [BAV99-7-F](https://www.flux.ai/lcsc/bav99-7-f~un1y.md) - Part Type: Switching Diode - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Package: SOT-23-3 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810251022_Diodes-Incorporated-BAV99-7-F_C106919.pdf - Role Details: Input clamp for CT3 differential sense lines - JLCPCB Part Class: Extended Part - LCSC Part Number: C106919 - Role: Clamp - Manufacturer Part Number: BAV99-7-F - Manufacturer Name: DIODES(美台) - Product Info Url: https://lcsc.com/product-detail/Switching-Diode_DIODES_BAV99-7-F_BAV99-7-F_C106919.html **Pins:** - A [pin 1] - K [pin 3] - K [pin 2] ### D4 — [BAV99-7-F](https://www.flux.ai/lcsc/bav99-7-f~un1y.md) - Role: Clamp - Role Details: Input clamp for CT4 differential sense lines - Manufacturer Part Number: BAV99-7-F - JLCPCB Part Class: Extended Part - LCSC Part Number: C106919 - Part Type: Switching Diode - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810251022_Diodes-Incorporated-BAV99-7-F_C106919.pdf - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Product Info Url: https://lcsc.com/product-detail/Switching-Diode_DIODES_BAV99-7-F_BAV99-7-F_C106919.html - Package: SOT-23-3 - Manufacturer Name: DIODES(美台) **Pins:** - A [pin 1] - K [pin 3] - K [pin 2] ### D5 — [BAV99-7-F](https://www.flux.ai/lcsc/bav99-7-f~un1y.md) - Product Info Url: https://lcsc.com/product-detail/Switching-Diode_DIODES_BAV99-7-F_BAV99-7-F_C106919.html - Role Details: Input clamp for pressure channel 1 signal - Package: SOT-23-3 - Manufacturer Name: DIODES(美台) - Role: Clamp - LCSC Part Number: C106919 - JLCPCB Part Class: Extended Part - Manufacturer Part Number: BAV99-7-F - Part Type: Switching Diode - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810251022_Diodes-Incorporated-BAV99-7-F_C106919.pdf **Pins:** - A [pin 1] - K [pin 3] - K [pin 2] ### D6 — [BAV99-7-F](https://www.flux.ai/lcsc/bav99-7-f~un1y.md) - Role: Clamp - Manufacturer Name: DIODES(美台) - Product Info Url: https://lcsc.com/product-detail/Switching-Diode_DIODES_BAV99-7-F_BAV99-7-F_C106919.html - Role Details: Input clamp for pressure channel 2 signal - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Package: SOT-23-3 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810251022_Diodes-Incorporated-BAV99-7-F_C106919.pdf - Part Type: Switching Diode - JLCPCB Part Class: Extended Part - LCSC Part Number: C106919 - Manufacturer Part Number: BAV99-7-F **Pins:** - A [pin 1] - K [pin 3] - K [pin 2] ### D7 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Role Details: Series Schottky diode for reverse polarity and backfeed blocking on 5V input - Manufacturer Part Number: 1N5819HW-7-F - Role: Protection - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Diodes Incorporated - Part Type: Diode - Package: SOD-123 - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf **Pins:** - A [pin 2] - K [pin 1] ### D8 — [SMBJ6.0A-13-F](https://www.flux.ai/lcsc/smbj6p0a-13-f~xo89.md) - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - Manufacturer Part Number: SMBJ6.0A-13-F - LCSC Part Number: C135087 - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ6-0A-13-F_SMBJ6-0A-13-F_C135087.html - Role Details: Transient suppression on incoming 5V rail - JLCPCB Part Class: Extended Part - Part Type: TVS - Package: SMB - Manufacturer Name: DIODES(美台) - Role: Protection - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ6-0A-13-F_C135087.pdf **Pins:** - A [pin 2] - K [pin 1] ### F1 — [PTS181224V150](https://www.flux.ai/jecstronic/pts181224v150~9rd.md) - Manufacturer Part Number: PTS181224V150 - Role: Protection - License: https://creativecommons.org/licenses/by/4.0/ - Package: 1812 - Part Type: PTC Resettable Fuses - Role Details: Resettable overcurrent protection on incoming 5V rail - Manufacturer Name: Eaton - Electronics Division - Datasheet URL: https://www.eaton.com/content/dam/eaton/products/electronic-components/resources/data-sheet/eaton-pts1812-6-60-volt-dc-surface-mount-resettable-ptc-data-sheet.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### FH1 — [178.6764.0001](https://www.flux.ai/jecstronic/178p6764p0001~4jo.md) - Manufacturer Part Number: 178.6764.0001 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Littelfuse/Commercial Vehicle Products - Role: Protection - Part Type: Circuit Protection - Role Details: Per-channel fuse holder for relay output 1 - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3f05f551-560b-4050-ab12-a352111d7ba3&filename=littelfuse-fuse-holder-mini-fl1-datasheet.pdf - Package: BladeFuseHolder_THT **Pins:** - 1 [pin 1] - 2 [pin 2] ### FH2 — [178.6764.0001](https://www.flux.ai/jecstronic/178p6764p0001~4jo.md) - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3f05f551-560b-4050-ab12-a352111d7ba3&filename=littelfuse-fuse-holder-mini-fl1-datasheet.pdf - Package: BladeFuseHolder_THT - Part Type: Circuit Protection - Manufacturer Name: Littelfuse/Commercial Vehicle Products - Role Details: Per-channel fuse holder for relay output 2 - Role: Protection - Manufacturer Part Number: 178.6764.0001 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### FH3 — [178.6764.0001](https://www.flux.ai/jecstronic/178p6764p0001~4jo.md) - Part Type: Circuit Protection - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3f05f551-560b-4050-ab12-a352111d7ba3&filename=littelfuse-fuse-holder-mini-fl1-datasheet.pdf - Role Details: Per-channel fuse holder for relay output 3 - Package: BladeFuseHolder_THT - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 178.6764.0001 - Role: Protection - Manufacturer Name: Littelfuse/Commercial Vehicle Products **Pins:** - 1 [pin 1] - 2 [pin 2] ### FH4 — [178.6764.0001](https://www.flux.ai/jecstronic/178p6764p0001~4jo.md) - Manufacturer Part Number: 178.6764.0001 - License: https://creativecommons.org/licenses/by/4.0/ - Package: BladeFuseHolder_THT - Role Details: Per-channel fuse holder for relay output 4 - Manufacturer Name: Littelfuse/Commercial Vehicle Products - Part Type: Circuit Protection - Role: Protection - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3f05f551-560b-4050-ab12-a352111d7ba3&filename=littelfuse-fuse-holder-mini-fl1-datasheet.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### FH5 — [178.6764.0001](https://www.flux.ai/jecstronic/178p6764p0001~4jo.md) - Manufacturer Name: Littelfuse/Commercial Vehicle Products - Role: Protection - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 178.6764.0001 - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3f05f551-560b-4050-ab12-a352111d7ba3&filename=littelfuse-fuse-holder-mini-fl1-datasheet.pdf - Role Details: Per-channel fuse holder for relay output 5 - Package: BladeFuseHolder_THT - Part Type: Circuit Protection **Pins:** - 1 [pin 1] - 2 [pin 2] ### FH6 — [178.6764.0001](https://www.flux.ai/jecstronic/178p6764p0001~4jo.md) - Package: BladeFuseHolder_THT - Part Type: Circuit Protection - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3f05f551-560b-4050-ab12-a352111d7ba3&filename=littelfuse-fuse-holder-mini-fl1-datasheet.pdf - Role: Protection - Manufacturer Part Number: 178.6764.0001 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Per-channel fuse holder for relay output 6 - Manufacturer Name: Littelfuse/Commercial Vehicle Products **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_AIN6 — [282837-4](https://www.flux.ai/adrian95/282837-4~o7p.md) - Package: TerminalBlock_P5.08_1x04 - Manufacturer Part Number: 282837-4 - Role Details: Spare analog connector carrying AIN6P_RAW, AIN6N_RAW, and GND per reference - Datasheet URL: https://www.te.com/usa-en/product-282837-4.datasheet.pdf - Part Type: Connector - Role: Connector - Manufacturer Name: TE Connectivity AMP Connectors - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_CT1 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Role Details: Field CT input for channel 1 - Symbol Style: parametric-v1 - Manufacturer Name: TE Connectivity AMP Connectors - Role: Connector - Part Type: Connector - Package: TerminalBlock_1x2_5.08mm - Manufacturer Part Number: 282837-2 **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_CT2 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Symbol Style: parametric-v1 - Role: Connector - Role Details: Field CT input for channel 2 - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Manufacturer Part Number: 282837-2 - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Package: TerminalBlock_1x2_5.08mm **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_CT3 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Manufacturer Part Number: 282837-2 - Role: Connector - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Symbol Style: parametric-v1 - Package: TerminalBlock_1x2_5.08mm - Role Details: Field CT input for channel 3 - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_CT4 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Symbol Style: parametric-v1 - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Package: TerminalBlock_1x2_5.08mm - Role Details: Field CT input for channel 4 - Manufacturer Part Number: 282837-2 - Manufacturer Name: TE Connectivity AMP Connectors - Part Type: Connector - Role: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_DIN1 — [1712805](https://www.flux.ai/adrian95/1712805~72z.md) - Package: TerminalBlock_1x4_5.08mm - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: http://www.phoenixcontact.com/de/produkte/1712805/pdf - Manufacturer Part Number: 1712805 - Role: Connector - Part Type: Connector - Package or Case Code: 1712805 - Manufacturer Name: Phoenix Contact - Role Details: Digital input connector 1 with field power, ground, and signal **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_DIN2 — [1712805](https://www.flux.ai/adrian95/1712805~72z.md) - Role Details: Digital input connector 2 with field power, ground, and signal - Part Type: Connector - Package or Case Code: 1712805 - Manufacturer Name: Phoenix Contact - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: http://www.phoenixcontact.com/de/produkte/1712805/pdf - Manufacturer Part Number: 1712805 - Package: TerminalBlock_1x4_5.08mm **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_DIN3 — [1712805](https://www.flux.ai/adrian95/1712805~72z.md) - Manufacturer Part Number: 1712805 - Role Details: Digital input connector 3 with field power, ground, and signal - Datasheet URL: http://www.phoenixcontact.com/de/produkte/1712805/pdf - Package: TerminalBlock_1x4_5.08mm - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Phoenix Contact - Package or Case Code: 1712805 - Part Type: Connector - Role: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_DIN4 — [1712805](https://www.flux.ai/adrian95/1712805~72z.md) - Role: Connector - Package or Case Code: 1712805 - Part Type: Connector - Package: TerminalBlock_1x4_5.08mm - Role Details: Digital input connector 4 with field power, ground, and signal - Manufacturer Name: Phoenix Contact - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1712805 - Datasheet URL: http://www.phoenixcontact.com/de/produkte/1712805/pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_FAN — [282837-3](https://www.flux.ai/adrian95/282837-3~5mc.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 282837-3 - Datasheet URL: https://www.te.com/usa-en/product-282837-3.datasheet.pdf - Manufacturer Name: TE Connectivity AMP Connectors - Package: TerminalBlock_P5.08_1x03 - Role Details: Fan connector: +5V, FAN_CTRL, GND - Role: Connector - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J_FLOW1 — [282837-3](https://www.flux.ai/vasy_skral/282837-3~ndb.md) - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Part Type: Connector - Symbol Style: parametric-v1 - Package: TerminalBlock_1x3_5.08mm - Role: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Manufacturer Part Number: 282837-3 - Role Details: Flow sensor input connector 1 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J_FLOW2 — [282837-3](https://www.flux.ai/vasy_skral/282837-3~ndb.md) - Symbol Style: parametric-v1 - Role Details: Flow sensor input connector 2 - Part Type: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Manufacturer Part Number: 282837-3 - Manufacturer Name: TE Connectivity AMP Connectors - Role: Connector - Package: TerminalBlock_1x3_5.08mm **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J_HELTEC_L — [Pin Socket 01x18 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x18-254mm-vertical~nta.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Left 18-pin socket for Heltec WiFi LoRa 32 V4 module with 25.4mm row spacing - Role: Module Interface - Part Type: Connector - Package: THT_1x18_2.54mm **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - Pin_17 [pin 17] - Pin_18 [pin 18] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J_HELTEC_R — [Pin Socket 01x18 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x18-254mm-vertical~nta.md) - Package: THT_1x18_2.54mm - Role Details: Right 18-pin socket for Heltec WiFi LoRa 32 V4 module with 25.4mm row spacing - License: https://creativecommons.org/licenses/by/4.0/ - Role: Module Interface - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - Pin_17 [pin 17] - Pin_18 [pin 18] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J_HUM — [1712805](https://www.flux.ai/adrian95/1712805~72z.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1712805 - Datasheet URL: http://www.phoenixcontact.com/de/produkte/1712805/pdf - Role: Connector - Package or Case Code: 1712805 - Part Type: Connector - Role Details: Humidity sensor connector carrying power and I2C - Manufacturer Name: Phoenix Contact - Package: TerminalBlock_1x4_5.08mm **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_PRESS1 — [282837-3](https://www.flux.ai/vasy_skral/282837-3~ndb.md) - Role Details: Field pressure input connector for channel 1 - Package: TerminalBlock_1x3_5.08mm - Role: Connector - Manufacturer Part Number: 282837-3 - Manufacturer Name: TE Connectivity AMP Connectors - Symbol Style: parametric-v1 - Part Type: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J_PRESS2 — [282837-3](https://www.flux.ai/vasy_skral/282837-3~ndb.md) - Role Details: Field pressure input connector for channel 2 - Role: Connector - Manufacturer Part Number: 282837-3 - Manufacturer Name: TE Connectivity AMP Connectors - Symbol Style: parametric-v1 - Part Type: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Package: TerminalBlock_1x3_5.08mm **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J_PWR — [1712805](https://www.flux.ai/adrian95/1712805~72z.md) - Package: TerminalBlock_1x4_5.08mm - Part Type: Connector - Package or Case Code: 1712805 - Manufacturer Name: Phoenix Contact - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Main field power input connector carrying 5V and ground - Datasheet URL: http://www.phoenixcontact.com/de/produkte/1712805/pdf - Manufacturer Part Number: 1712805 - Role: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_QWIIC1 — [QWIIC I2C JST Connector](https://www.flux.ai/vasy_skral/qwiic-i2c-jst-connector~d55.md) - Role: Connector - Role Details: Primary Qwiic connector for external I2C peripherals - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/JST%20PDFs/SR%20Connector.pdf - Manufacturer Part Number: SM04B-SRSS-TB - Part Type: Connector - Package: JST_SH_1mm_RA_4P - Manufacturer Name: JST Sales America Inc. **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_QWIIC2 — [QWIIC I2C JST Connector](https://www.flux.ai/vasy_skral/qwiic-i2c-jst-connector~d55.md) - Part Type: Connector - Package: JST_SH_1mm_RA_4P - Manufacturer Name: JST Sales America Inc. - Role Details: Secondary Qwiic connector for daisy-chained external I2C peripherals - Role: Connector - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/JST%20PDFs/SR%20Connector.pdf - Manufacturer Part Number: SM04B-SRSS-TB **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_RELAY1 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Manufacturer Part Number: 282837-2 - Role Details: Field relay output connector 1 - Manufacturer Name: TE Connectivity AMP Connectors - Part Type: Connector - Role: Connector - Symbol Style: parametric-v1 - Package: TerminalBlock_1x2_5.08mm - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_RELAY2 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Symbol Style: parametric-v1 - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Role Details: Field relay output connector 2 - Package: TerminalBlock_1x2_5.08mm - Manufacturer Part Number: 282837-2 - Role: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_RELAY3 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Part Type: Connector - Role: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Manufacturer Part Number: 282837-2 - Package: TerminalBlock_1x2_5.08mm - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Role Details: Field relay output connector 3 - Symbol Style: parametric-v1 **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_RELAY4 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Manufacturer Part Number: 282837-2 - Part Type: Connector - Role Details: Field relay output connector 4 - Manufacturer Name: TE Connectivity AMP Connectors - Package: TerminalBlock_1x2_5.08mm - Symbol Style: parametric-v1 - Role: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_RELAY5 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Role Details: Field relay output connector 5 - Symbol Style: parametric-v1 - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Manufacturer Part Number: 282837-2 - Role: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Package: TerminalBlock_1x2_5.08mm - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_RELAY6 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Symbol Style: parametric-v1 - Role Details: Field relay output connector 6 - Package: TerminalBlock_1x2_5.08mm - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Manufacturer Part Number: 282837-2 - Role: Connector - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_TEMP1 — [282837-3](https://www.flux.ai/vasy_skral/282837-3~ndb.md) - Role Details: One Wire temperature connector 1 with power, ground, and data - Package: TerminalBlock_1x3_5.08mm - Manufacturer Part Number: 282837-3 - Manufacturer Name: TE Connectivity AMP Connectors - Symbol Style: parametric-v1 - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Role: Connector - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J_TEMP2 — [282837-3](https://www.flux.ai/vasy_skral/282837-3~ndb.md) - Package: TerminalBlock_1x3_5.08mm - Manufacturer Part Number: 282837-3 - Manufacturer Name: TE Connectivity AMP Connectors - Symbol Style: parametric-v1 - Role Details: One Wire temperature connector 2 with power, ground, and data - Role: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J_TEMP3 — [282837-3](https://www.flux.ai/vasy_skral/282837-3~ndb.md) - Package: TerminalBlock_1x3_5.08mm - Manufacturer Name: TE Connectivity AMP Connectors - Role: Connector - Manufacturer Part Number: 282837-3 - Part Type: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Symbol Style: parametric-v1 - Role Details: One Wire temperature connector 3 with power, ground, and data **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J_TEMP4 — [282837-3](https://www.flux.ai/vasy_skral/282837-3~ndb.md) - Role: Connector - Role Details: One Wire temperature connector 4 with power, ground, and data - Manufacturer Name: TE Connectivity AMP Connectors - Package: TerminalBlock_1x3_5.08mm - Manufacturer Part Number: 282837-3 - Part Type: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Symbol Style: parametric-v1 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J_VIB1 — [282837-4](https://www.flux.ai/adrian95/282837-4~o7p.md) - Role: Connector - Role Details: Vibration sensor connector channel 0: +3V3, GND, MUX_SDA0, MUX_SCL0 - Datasheet URL: https://www.te.com/usa-en/product-282837-4.datasheet.pdf - Package: TerminalBlock_P5.08_1x04 - Manufacturer Part Number: 282837-4 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_VIB2 — [282837-4](https://www.flux.ai/adrian95/282837-4~o7p.md) - Package: TerminalBlock_P5.08_1x04 - Manufacturer Part Number: 282837-4 - Role: Connector - Datasheet URL: https://www.te.com/usa-en/product-282837-4.datasheet.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Role Details: Vibration sensor connector channel 1: +3V3, GND, MUX_SDA1, MUX_SCL1 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J_VIB3 — [282837-4](https://www.flux.ai/adrian95/282837-4~o7p.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Role: Connector - Role Details: Vibration sensor connector channel 2: +3V3, GND, MUX_SDA2, MUX_SCL2 - Package: TerminalBlock_P5.08_1x04 - Manufacturer Part Number: 282837-4 - Datasheet URL: https://www.te.com/usa-en/product-282837-4.datasheet.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### SW1 — [TS-1002-10026](https://www.flux.ai/jharwinbarrozo/ts-1002-10026~q6p.md) - Role: Human Interface - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_XUNPU-TS-1002-10026_C455101.pdf - Part Type: Switch - Manufacturer Name: XUNPU - Manufacturer Part Number: TS-1002-10026 - Role Details: Momentary reset switch for Heltec RST line - Package: THT_6x6mm **Pins:** - 4 [pin 4] - 3 [pin 3] - 1 [pin 1] - 2 [pin 2] ### TP1 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - LCSC Part Number: C238126 - Role: Test - Manufacturer Part Number: 5009 - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Manufacturer Name: Keystone - Role Details: Test access for +5V rail - Package: TestPoint_TH_2mm - Package or Case Code: TEST-TH_BD3.18-P1.93 **Pins:** - 1 [pin 1] ### TP10 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Manufacturer Name: Keystone - Role Details: Test access for 5V_SENSE divider node - Package or Case Code: TEST-TH_BD3.18-P1.93 - Role: Test - LCSC Part Number: C238126 - Package: TestPoint_TH_2mm - Manufacturer Part Number: 5009 - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part **Pins:** - 1 [pin 1] ### TP2 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - Manufacturer Name: Keystone - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Package: TestPoint_TH_2mm - Role: Test - Package or Case Code: TEST-TH_BD3.18-P1.93 - LCSC Part Number: C238126 - JLCPCB Part Class: Extended Part - Part Type: Test Points/Test Rings - Manufacturer Part Number: 5009 - Role Details: Test access for board +3V3 rail **Pins:** - 1 [pin 1] ### TP3 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - LCSC Part Number: C238126 - Manufacturer Part Number: 5009 - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part - Role: Test - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Package: TestPoint_TH_2mm - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Manufacturer Name: Keystone - Package or Case Code: TEST-TH_BD3.18-P1.93 - Role Details: Ground reference test point **Pins:** - 1 [pin 1] ### TP4 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - LCSC Part Number: C238126 - Manufacturer Part Number: 5009 - Role Details: Test access for CT1N analog node - JLCPCB Part Class: Extended Part - Part Type: Test Points/Test Rings - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Manufacturer Name: Keystone - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Package: TestPoint_TH_2mm - Package or Case Code: TEST-TH_BD3.18-P1.93 - Role: Test **Pins:** - 1 [pin 1] ### TP5 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part - Package: TestPoint_TH_2mm - Manufacturer Part Number: 5009 - Role Details: Test access for VBIAS midscale reference - LCSC Part Number: C238126 - Role: Test - Package or Case Code: TEST-TH_BD3.18-P1.93 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Manufacturer Name: Keystone - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf **Pins:** - 1 [pin 1] ### TP6 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - Role Details: Test access for I2C SDA - Package or Case Code: TEST-TH_BD3.18-P1.93 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Manufacturer Name: Keystone - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Manufacturer Part Number: 5009 - JLCPCB Part Class: Extended Part - Part Type: Test Points/Test Rings - LCSC Part Number: C238126 - Role: Test - Package: TestPoint_TH_2mm **Pins:** - 1 [pin 1] ### TP7 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - Package or Case Code: TEST-TH_BD3.18-P1.93 - Role: Test - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Manufacturer Name: Keystone - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Manufacturer Part Number: 5009 - JLCPCB Part Class: Extended Part - Part Type: Test Points/Test Rings - LCSC Part Number: C238126 - Role Details: Test access for I2C SCL - Package: TestPoint_TH_2mm **Pins:** - 1 [pin 1] ### TP8 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - Manufacturer Name: Keystone - Package: TestPoint_TH_2mm - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Role Details: Test access for One Wire data bus - Role: Test - Package or Case Code: TEST-TH_BD3.18-P1.93 - LCSC Part Number: C238126 - JLCPCB Part Class: Extended Part - Part Type: Test Points/Test Rings - Manufacturer Part Number: 5009 **Pins:** - 1 [pin 1] ### TP9 — [5009](https://www.flux.ai/lcsc/5009~wd71.md) - Package: TestPoint_TH_2mm - LCSC Part Number: C238126 - JLCPCB Part Class: Extended Part - Part Type: Test Points/Test Rings - Manufacturer Part Number: 5009 - Manufacturer Name: Keystone - Role Details: Test access for AIN6P spare analog input - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5009_Keystone-5009_C238126.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302136_Keystone-5009_C238126.pdf - Role: Test - Package or Case Code: TEST-TH_BD3.18-P1.93 **Pins:** - 1 [pin 1] ### U1 — [AP2112K-3.3TRG1](https://www.flux.ai/adrian95/ap2112k-33trg1~zlq.md) - Symbol Style: parametric-v1 - Role: Regulation - Package: SOT-25 - Datasheet URL: Diodes Incorporated - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Board +3V3 regulator isolated from Heltec internal 3.3V domain - Manufacturer Part Number: AP2112K-3.3TRG1 - Manufacturer Name: Diodes Incorporated **Pins:** - EN [pin 3] - GND [pin 2] - NC [pin 4] - VIN [pin 1] - VOUT [pin 5] ### U2 — [ADS131M08IPBS](https://www.flux.ai/lcsc/ads131m08ipbs~buk.md) - LCSC Part Number: C2685451 - Manufacturer Name: TI(德州仪器) - Package or Case Code: TQFP-32_L5.0-W5.0-P0.50-LS7.0-TL - Role: Data Conversion - Role Details: Primary mixed-signal front end for CT, pressure, spare analog, and 5V brownout channels - Part Type: Analog To Digital Converters (ADCs) - Package: TQFP-32_5x5_P0.5 - Manufacturer Part Number: ADS131M08IPBS - JLCPCB Part Class: Extended Part **Pins:** - ~{CS} [pin 17] - ~{DRDY} [pin 18] - ~{SYNC}/~{RESET} [pin 16] - AGND [pin 28] - AGND [pin 13] - AIN0N [pin 30] - AIN0P [pin 29] - AIN1N [pin 31] - AIN1P [pin 32] - AIN2N [pin 2] - AIN2P [pin 1] - AIN3N [pin 3] - AIN3P [pin 4] - AIN4N [pin 6] - AIN4P [pin 5] - AIN5N [pin 7] - AIN5P [pin 8] - AIN6N [pin 10] - AIN6P [pin 9] - AIN7N [pin 11] - AIN7P [pin 12] - AVDD [pin 15] - CAP [pin 24] - DGND [pin 25] - DIN [pin 21] - DOUT [pin 20] - DVDD [pin 26] - NC [pin 27] - REFIN [pin 14] - SCLK [pin 19] - STAL1/CLKIN [pin 23] - XTAL2 [pin 22] ### U3 — [ULN2003A](https://www.flux.ai/adrian95/uln2003a~0lo.md) - Role: Driver - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/f3/6e/c8/64/4d/b3/4e/38/CD00001244.pdf/files/CD00001244.pdf/jcr:content/translations/en.CD00001244.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ULN2003A - Role Details: Low-side driver for six relay outputs and one fan output - Package: DIP-16 - Part Type: Integrated Circuit - Manufacturer Name: STMicroelectronics **Pins:** - COM [pin 9] - GND [pin 8] - I1 [pin 1] - I2 [pin 2] - I3 [pin 3] - I4 [pin 4] - I5 [pin 5] - I6 [pin 6] - I7 [pin 7] - O1 [pin 16] - O2 [pin 15] - O3 [pin 14] - O4 [pin 13] - O5 [pin 12] - O6 [pin 11] - O7 [pin 10] ### U4 — [TCA9548A](https://www.flux.ai/yragisan/tca9548a~5r.md) - Role Details: 8-channel I2C switch used to isolate vibration and sensor bus branches - Manufacturer Part Number: TCA9548APWR - Package: TSSOP-24 - Manufacturer Name: Texas Instruments Inc. - Role: Bus Expansion **Pins:** - ~RESET [pin 3] - A0 [pin 1] - A1 [pin 2] - A2 [pin 21] - GND [pin 12] - SC0 [pin 5] - SC1 [pin 7] - SC2 [pin 9] - SC3 [pin 11] - SC4 [pin 14] - SC5 [pin 16] - SC6 [pin 18] - SC7 [pin 20] - SCL [pin 22] - SD0 [pin 4] - SD1 [pin 6] - SD2 [pin 8] - SD3 [pin 10] - SD4 [pin 13] - SD5 [pin 15] - SD6 [pin 17] - SD7 [pin 19] - SDA [pin 23] - VCC [pin 24] ### U7 — [TMP102AIDRLR](https://www.flux.ai/adrian95/tmp102aidrlr~ps2.md) - Role: Temperature Sensing - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Part Type: Sensor - Manufacturer Part Number: TMP102AIDRLR - Datasheet URL: https://www.ti.com/lit/ds/symlink/tmp102.pdf - Role Details: Local temperature sensor with ALERT output for fan control - Package: SOT-563 **Pins:** - ADD0 [pin 4] - ALERT [pin 3] - GND [pin 2] - SCL [pin 1] - SDA [pin 6] - V+ [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/auzzironi/sim-scada~2w](https://www.flux.ai/auzzironi/sim-scada~2w).* --- *Generated from [https://www.flux.ai/auzzironi/sim-scada~2w](https://www.flux.ai/auzzironi/sim-scada~2w)*