2 layers100 × 100 mm
2 layers62.2 × 33.2 mm
PCA9685 ESP32
daffa-d/PCA9685_ESP32- Size
- 62.2 × 33.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 69
- Pads
- 211
- Tracks, vias
- 597, 58
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 Mar 2025
- Updated
- 5 Mar 2025
Overview
PCA9685 ESP32 is an open-source printed circuit board by daffa-d, from the daffa-d/PCA9685_ESP32 repository on GitHub. It is a 2-layer board of 62.2 × 33.2 mm with 43 parts on 69 nets, routed with 597 tracks and 58 vias.
It is built around the ESP32-WROOM-32D, CH340G and AMS1117-3.3, with the BSS138 among its other parts. Its parts include 16 connectors, 10 capacitors, 5 resistors, 4 diodes and 3 ICs. It belongs with the ESP32 boards of this library.
Main components
4
ESP32-WROOM-32D
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
CH340G
SOP-16-40℃~+85℃ 2Mbps 3.3V、5V USB 2.0 USB to UART SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, J13, J14 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3, C6, C8 |
| 3 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4, R7 |
| 3 | 1N4001 | Diode_SMD:D_SMA_Handsoldering | D2, D3, D4 |
| 2 | 0R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C11 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5 |
| 2 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | Conn_01x06_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J15, J16 |
| 1 | 10uF | Capacitor_THT:C_Radial_D5.0mm_H11.0mm_P2.00mm | C9 |
| 1 | 22uF | Capacitor_THT:C_Radial_D5.0mm_H11.0mm_P2.00mm | C10 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | CH340G | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | Crystal | Crystal:Crystal_SMD_HC49-SD | Y1 |
| 1 | ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32 | U1 |
| 1 | InputSupply+5V | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J2 |
| 1 | Jumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | Reset1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J1 |
Questions
How big is the PCA9685 ESP32 PCB?
It measures 62.2 × 33.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PCA9685 ESP32 use?
43 parts, built around the ESP32-WROOM-32D, CH340G, AMS1117-3.3 and BSS138. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the PCA9685 ESP32 KiCad files?
From the daffa-d/PCA9685_ESP32 repository on GitHub, at the commit this page was made from: the board is main/main.kicad_pcb and its schematic main/main.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PCA9685 ESP32 design in my own project?
Its repository states no licence, so its author keeps all rights: ask daffa-d before reusing the design.
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