M0HID/LEDPCBHere is my PCB for an LED Matrix integrated with a custom ESP32-S3 WROOM-01. The design includes a USB-C port that can be used to program the chip
Fire is an open-source printed circuit board by M0HID, from the M0HID/LEDPCB repository on GitHub. It is a 2-layer board of 56 × 57.5 mm with 50 parts on 79 nets, routed with 267 tracks and 9 vias.
It is built around the ESP32-S3-WROOM-1-N8 and WS2812B. Its parts include 36 diodes, 6 capacitors, 4 resistors, 2 ICs and 2 connectors. It belongs with the ESP32 boards of this library.
Here is my PCB for an LED Matrix integrated with a custom ESP32-S3 WROOM-01. The design includes a USB-C port that can be used to program the chip
There is a 6x6 (total 36) WS2812B 5050 LEDs on the front of the board, which are connected to GPIO21 on the ESP32.
An 1x8 header is broken out on the PCB which features a 5v, 3.3v, GND and 5 GPIO pins which can be used for whatever you want to program!
| Front | Back |
|---|---|
 |  |
| Qty | Value | Footprint | References |
|---|---|---|---|
| 36 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +20 |
| 5 | 1u | Capacitor_SMD:C_0402_1005Metric | C1, C3, C4, C5, C6 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 1 | 100n | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 10u | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2 |
| 1 | ESP32-S3-WROOM-1 | PCM_Espressif:ESP32-S3-WROOM-1 | U1 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
It measures 56 × 57.5 mm and has 2 copper layers, 1.6 mm thick.
50 parts, built around the ESP32-S3-WROOM-1-N8 and WS2812B. 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.
From the M0HID/LEDPCB repository on GitHub, at the commit this page was made from: the board is PCB/fire.kicad_pcb and its schematic PCB/fire.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask M0HID before reusing the design.
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