2 layers129.9 × 63.6 mm
Traeger rev 2.3.0.kicad pro
jazzmonger/Traeger-PID-Controller
Traeger Smoker/Grill Controller based on an
45 parts36
2 layers
MainPCB
MagicTINTIN/ChrisKeyboards1I couldn’t find the keyboard I wanted, so I built it.
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 60
- Pads
- 123
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 14 Apr 2025
- Updated
- 17 May 2026
Overview
MainPCB is an open-source printed circuit board by MagicTINTIN, from the MagicTINTIN/ChrisKeyboards repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board with 8 parts on 60 nets.
It is built around the ESP32-S3-DEVKITC-1-N8 and BC547. Its parts include 4 connectors, 2 resistors, 1 IC and 1 transistor. It belongs with the keyboards and input boards and the ESP32 boards of this library.
Main components
2README
README.mdChrisKeyboards
I couldn’t find the keyboard I wanted, so I built it.
Unable to find an USB chiclet keyboard as we have on laptop (and with a reasonable price), I decided to create mine.
We can recover keyboard from an old laptop or buy a spare one (the one I chose is exactly the same that I have on my laptop, with backlight so it cost me 36 euros, but you can easily find cheaper ones).
Components
- spare laptop keyboard (here with a 30 pins 0.8mm FPC ribbon)
- ESP32-S3 (we need about 30 IO pins...)
- 2 FPC connectors: 30 pins 0.8mm
for keys, 6 pins (couldn't find 4 pins that meet requirements) 1mmfor backlight - Dupont cables while we don't have PCB
- (optional) speaker
Road map
- get components
- assemble everything on a breadboard
- program the esp32
- testing the prototype in real conditions
- implement missing features
- design PCB
- 3D model the case
- get last components
- print the case
- assemble the final keyboard
Project pictures
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 1 | BC547 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | Conn_01x04_Shielded_Backlight | Chris:FPC_4_Dell_1mm_with0 | J3 |
| 1 | Conn_01x30_Keyboard | Chris:FPC_30_Dell_0.8mm_no0 | J1 |
| 1 | Conn_02x03_Odd_Even_Backlight | Connector_PinHeader_2.00mm:PinHeader_2x03_P2.00mm_Vertical | J4 |
| 1 | Conn_02x15_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x15_P2.54mm_Vertical | J2 |
| 1 | ESP32-S3-DevKitC | PCM_Espressif:ESP32-S3-DevKitC | U1 |
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Questions
What parts does the MainPCB use?
8 parts, built around the ESP32-S3-DEVKITC-1-N8 and BC547. 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 MainPCB KiCad files?
From the MagicTINTIN/ChrisKeyboards repository on GitHub, at the commit this page was made from: the board is pcb/mainPCB/mainPCB.kicad_pcb and its schematic pcb/mainPCB/mainPCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MainPCB design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).