# Cylinder LED Controller

## Description

Top controller board for a three\-channel 675–680 nm LED cylinder, powered from an externally charged 3S LiPo with hardware protection, ESP32\-C3 control, and isolated LED\-pair harness outputs\.

## Project Details

- **Owner:** bejoyy
- **Created:** 10/5/2026
- **Last Updated:** 10/6/2026
- **Visibility:** Public
- **Copies:** 11

## Key Components

### D1 — [PMEG4020ER,115](https://flux.ai/jecstronic/pmeg4020er115~m0p.md)

- Role Details: AL8860 freewheel Schottky, 40V 2A
- Manufacturer Name: Nexperia USA Inc\.
- Functional Group: LED U4 CHANNEL 1
- Manufacturer Part Number: PMEG4020ER,115
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.mouser\.com/datasheet/2/916/PMEG4020ER\-2938867\.pdf
- Role: Catch Diode
- Part Type: Diode

**Pins:**
- A [pin 2]
- C [pin 1]

### D2 — [PMEG4020ER,115](https://flux.ai/jecstronic/pmeg4020er115~m0p.md)

- Manufacturer Name: Nexperia USA Inc\.
- Role: Catch Diode
- Role Details: AL8860 freewheel Schottky, 40V 2A
- Manufacturer Part Number: PMEG4020ER,115
- Functional Group: LED U4 CHANNEL 1
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.mouser\.com/datasheet/2/916/PMEG4020ER\-2938867\.pdf
- Part Type: Diode

**Pins:**
- A [pin 2]
- C [pin 1]

### D3 — [PMEG4020ER,115](https://flux.ai/jecstronic/pmeg4020er115~m0p.md)

- Functional Group: LED U4 CHANNEL 1
- Manufacturer Name: Nexperia USA Inc\.
- Manufacturer Part Number: PMEG4020ER,115
- Role: Catch Diode
- Role Details: AL8860 freewheel Schottky, 40V 2A
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.mouser\.com/datasheet/2/916/PMEG4020ER\-2938867\.pdf
- Part Type: Diode

**Pins:**
- A [pin 2]
- C [pin 1]

### D4 — [BZT52C10\-7\-F](https://flux.ai/lcsc/bzt52c10-7-f~pi7x.md)

- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_Diodes\-Incorporated\-BZT52C10\-7\-F\_C155227\.pdf
- JLCPCB Part Class: Extended Part
- Manufacturer Name: DIODES\(美台\)
- Functional Group: POWER U1 BATTERY PROTECTION
- Manufacturer Part Number: BZT52C10\-7\-F
- LCSC Part Number: C155227
- Role: Clamping
- Package or Case Code: SOD\-123\_L2\.7\-W1\.6\-LS3\.7\-RD
- Part Type: Zener Diodes
- Role Details: 10V GATE\-to\-source clamp protects AO3400 ±12V VGS from LTC4365 gate drive
- Product Info Url: https://lcsc\.com/product\-detail/Zener\-Diodes\_DIODES\_BZT52C10\-7\-F\_BZT52C10\-7\-F\_C155227\.html

**Pins:**
- A [pin 2]
- C [pin 1]

### F1 — [MF2410F2\.000TM](https://flux.ai/silicon-yard/mf2410f2p000tm~ci.md)

- Part Type: Fuse
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: MF2410F2\.000TM
- Manufacturer Name: AEM Components
- Role Details: 2A input fuse; system worst\-case estimated below 1A
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/4dd18c27969aa37d832feb6f52b13b595ae2829d42ad9597cda1e253afd7db63\.pdf
- Current Rating: 2A
- Functional Group: POWER J1 BATTERY INPUT
- Role: Fuse

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### J1 — [XT30UPB\-M](https://flux.ai/lcsc/xt30upb-m~f9ju.md)

- JLCPCB Part Class: Extended Part
- Current Rating: 15A
- Functional Group: POWER J1 BATTERY INPUT
- Part Type: Power Connectors
- Product Info Url: https://lcsc\.com/product\-detail/Power\-Connectors\_Changzhou\-Amass\-Elec\-XT30UPB\-M\_C428721\.html
- Manufacturer Part Number: XT30UPB\-M
- Package or Case Code: CONN\-TH\_XT30UPB\-M
- Voltage Rating: 500V
- Datasheet URL: https://www\.lcsc\.com/datasheet/lcsc\_datasheet\_2304241822\_Changzhou\-Amass\-Elec\-XT30UPB\-M\_C428721\.pdf
- LCSC Part Number: C428721
- Role: Battery Input
- Connector Gender: Male
- Role Details: PCB male XT30 input for externally charged 3S LiPo; 15A connector margin
- Manufacturer Name: AMASS\(艾迈斯\)

**Pins:**
- \- [pin 1]
- \+ [pin 2]

### J2 — [HX PZ2\.54\-1x6P WT](https://flux.ai/adrian95/hx-pz2p54-1x6p-wt~ka4.md)

- Functional Group: OUTPUT J2 LED HARNESS
- LCSC Part Number: C46061679
- Role: LED Harness
- Role Details: Locking requirement; provisional 6\-contact 3A header pending exact keyed mate validation
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector
- Connector Rows: 1
- Connector Type: Headers and Wire Housings
- Connector Pitch: 2\.54mm
- Manufacturer Part Number: HX PZ2\.54\-1x6P WT
- Manufacturer Name: hanxia
- Connector Gender: Male
- Datasheet URL: https://www\.lcsc\.com/datasheet/C46061679\.pdf
- Connector Positions: 6

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]
- Pin\_4 [pin 4]
- Pin\_5 [pin 5]
- Pin\_6 [pin 6]

### J3 — [61000618221](https://flux.ai/adrian95/61000618221~u7o.md)

- Datasheet URL: https://www\.we\-online\.com/components/products/download/3D\_61000618221\+%28rev1%29\.pdf
- Connector Type: Headers and Wire Housings
- Connector Gender: Male
- Manufacturer Part Number: 61000618221
- Functional Group: CONTROL U3 ESP32 C3
- Package or Case Code: 61000618221
- Role: Programming Header
- Part Type: Connector
- Connector Positions: 6
- License: https://creativecommons\.org/licenses/by/4\.0/
- Connector Pitch: 2\.54mm
- Connector Rows: 1
- Manufacturer Name: Wurth Elektronik
- Role Details: 3V3 GND UART TX/RX EN BOOT

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]

### Q1 — [AO3400](https://flux.ai/lcsc/ao3400~y44d.md)

- Manufacturer Name: YFW\(佑风微\)
- Functional Group: POWER U1 BATTERY PROTECTION
- Role: Protection MOSFET
- LCSC Part Number: C2977509
- Manufacturer Part Number: AO3400
- Drain to Source Voltage: 30V
- Package or Case Code: SOT\-23\-3\_L3\.0\-W1\.7\-P0\.95\-LS2\.9\-BR
- Part Type: MOSFETs
- Role Details: Back\-to\-back input reverse blocking; 30V 5A
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2977509\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNRTlhdX11QQVFeVzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- Transistor Type: N\-channel MOSFET
- Continuous Drain Current: 5A \(Maximum\) at 25°C
- JLCPCB Part Class: Extended Part

**Pins:**
- D [pin 3]
- G [pin 1]
- S [pin 2]

### Q2 — [AO3400](https://flux.ai/lcsc/ao3400~y44d.md)

- Functional Group: POWER U1 BATTERY PROTECTION
- Manufacturer Name: YFW\(佑风微\)
- LCSC Part Number: C2977509
- Manufacturer Part Number: AO3400
- Drain to Source Voltage: 30V
- Package or Case Code: SOT\-23\-3\_L3\.0\-W1\.7\-P0\.95\-LS2\.9\-BR
- Part Type: MOSFETs
- Role Details: Back\-to\-back input reverse blocking; 30V 5A
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2977509\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNRTlhdX11QQVFeVzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- Role: Protection MOSFET
- Transistor Type: N\-channel MOSFET
- Continuous Drain Current: 5A \(Maximum\) at 25°C
- JLCPCB Part Class: Extended Part

**Pins:**
- D [pin 3]
- G [pin 1]
- S [pin 2]

### SW1 — [SS\-12D10L5](https://flux.ai/lcsc/ss-12d10l5~58d7.md)

- Role Details: Main battery disconnect, 3A contact rating
- Manufacturer Name: XKB Connectivity\(中国星坤\)
- Manufacturer Part Number: SS\-12D10L5
- Package or Case Code: SW\-TH\_SS\-12D10L5
- LCSC Part Number: C319012
- Contact Material: Copper alloy
- Current Rating: 3A
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2409302232\_XKB\-Connection\-SS\-12D10L5\_C319012\.pdf
- Functional Group: POWER J1 BATTERY INPUT
- Throw Configuration: Single Pole Double Throw \(SPDT\)
- Operating Temperature: \-40\~\+85℃
- Product Info Url: https://lcsc\.com/product\-detail/Toggle\-Switches\_XKB\-Enterprise\-SS\-12D10L5\_C319012\.html
- Role: Disconnect
- Part Type: Slide Switches
- Voltage Rating: 125V

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

### SW2 — [PTS636 SM25J SMTR LFS](https://flux.ai/jecstronic/pts636-sm25j-smtr-lfs~plx.md)

- Part Type: Switch
- Role Details: Pull EN low for reset
- Datasheet URL: https://www\.ckswitches\.com/media/2779/pts636\.pdf
- Manufacturer Name: C&K
- Functional Group: CONTROL U3 ESP32 C3
- Manufacturer Part Number: PTS636 SM25J SMTR LFS
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Reset Button

**Pins:**
- \~ [pin 1B]
- \~ [pin 1A]

### SW3 — [PTS636 SM25J SMTR LFS](https://flux.ai/jecstronic/pts636-sm25j-smtr-lfs~plx.md)

- Part Type: Switch
- Datasheet URL: https://www\.ckswitches\.com/media/2779/pts636\.pdf
- Manufacturer Name: C&K
- Role: Boot Button
- Manufacturer Part Number: PTS636 SM25J SMTR LFS
- Functional Group: CONTROL U3 ESP32 C3
- Role Details: Pull GPIO9 low for download mode
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- \~ [pin 1B]
- \~ [pin 1A]

### U1 — [LTC4365HTS8\-1\#TRPBF](https://flux.ai/jecstronic/ltc4365hts8-1trpbf~bks.md)

- Role Details: Hardware reverse polarity and pack undervoltage cutoff controller
- Datasheet URL: https://www\.analog\.com/media/en/technical\-documentation/data\-sheets/LTC4365\.pdf
- Part Type: Integrated Circuit
- Manufacturer Part Number: LTC4365HTS8\-1\#TRPBF
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: POWER U1 BATTERY PROTECTION
- Role: Protection Controller
- Manufacturer Name: Analog Devices Inc\.

**Pins:**
- \*FAULT [pin 6]
- \*SHDN [pin 5]
- GATE [pin 8]
- GND [pin 4]
- OV [pin 3]
- UV [pin 2]
- VIN [pin 1]
- VOUT [pin 7]

### U2 — [TPS563201](https://flux.ai/kicad-part-library/tps563201.md)

- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/tps563201\.pdf
- Manufacturer Part Number: TPS563201
- Functional Group: POWER U2 3V3 BUCK
- Part Type: Power Management
- Role Details: 3A\-rated 17V buck; ESP32 peak 345mA plus margin
- Manufacturer Name: Texas Instruments
- Package or Case Code: SOT\-23\-6
- Role: 3\.3V Buck

**Pins:**
- EN [pin 5]
- GND [pin 1]
- SW [pin 2]
- VBST [pin 6]
- VFB [pin 4]
- VIN [pin 3]

### U3 — [ESP32\-C3\-WROOM\-02\-N4](https://flux.ai/adrian95/esp32-c3-wroom-02-n4~gwb.md)

- Part Type: Module
- Manufacturer Part Number: ESP32\-C3\-WROOM\-02\-N4
- Role: MCU Module
- Symbol Style: parametric\-v1
- Role Details: Wi\-Fi/BLE controller; three independent PWM outputs and UART programming
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: Espressif Systems
- Functional Group: CONTROL U3 ESP32 C3
- Datasheet URL: https://www\.espressif\.com/sites/default/files/documentation/esp32\-c3\-wroom\-02\_datasheet\_en\.pdf

**Pins:**
- 3V3 [pin 1]
- EN [pin 2]
- GND\_1 [pin 9]
- GND\_10 [pin 27]
- GND\_2 [pin 19]
- GND\_3 [pin 20]
- GND\_4 [pin 21]
- GND\_5 [pin 22]
- GND\_6 [pin 23]
- GND\_7 [pin 24]
- GND\_8 [pin 25]
- GND\_9 [pin 26]
- IO0 [pin 18]
- IO1 [pin 17]
- IO10 [pin 10]
- IO18 [pin 13]
- IO19 [pin 14]
- IO2 [pin 16]
- IO3 [pin 15]
- IO4 [pin 3]
- IO5 [pin 4]
- IO6 [pin 5]
- IO7 [pin 6]
- IO8 [pin 7]
- IO9 [pin 8]
- RXD [pin 11]
- TXD [pin 12]

### U4 — [AL8860WT\-7](https://flux.ai/jecstronic/al8860wt-7~abc.md)

- Role Details: 667mA nominal constant\-current channel using 0\.15Ω sense
- Part Type: Power Management
- Manufacturer Name: Diodes Incorporated
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/AL8860\.pdf
- Manufacturer Part Number: AL8860WT\-7
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: LED Driver
- Functional Group: LED U4 CHANNEL 1

**Pins:**
- CTRL [pin 3]
- GND [pin 2]
- SET [pin 4]
- SW [pin 1]
- VIN [pin 5]

### U5 — [AL8860WT\-7](https://flux.ai/jecstronic/al8860wt-7~abc.md)

- Part Type: Power Management
- Role: LED Driver
- Manufacturer Name: Diodes Incorporated
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/AL8860\.pdf
- Manufacturer Part Number: AL8860WT\-7
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: LED U4 CHANNEL 1
- Role Details: 667mA nominal constant\-current channel using 0\.15Ω sense

**Pins:**
- CTRL [pin 3]
- GND [pin 2]
- SET [pin 4]
- SW [pin 1]
- VIN [pin 5]

### U6 — [AL8860WT\-7](https://flux.ai/jecstronic/al8860wt-7~abc.md)

- Functional Group: LED U4 CHANNEL 1
- Part Type: Power Management
- Role: LED Driver
- Manufacturer Name: Diodes Incorporated
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/AL8860\.pdf
- Manufacturer Part Number: AL8860WT\-7
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: 667mA nominal constant\-current channel using 0\.15Ω sense

**Pins:**
- CTRL [pin 3]
- GND [pin 2]
- SET [pin 4]
- SW [pin 1]
- VIN [pin 5]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/bejoyy/cylinder\-led\-controller\~i7](https://flux.ai/bejoyy/cylinder-led-controller~i7).*

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*Generated from [https://flux\.ai/bejoyy/cylinder\-led\-controller\~i7](https://flux.ai/bejoyy/cylinder-led-controller~i7)*