CoquiKeyboard
About the CoquiKeyboard PCB
CoquiKeyboard is an open source STM32 PCB design by coquizen, published on GitHub. It is a 2-layer board measuring 307.9 × 77.4 mm, with 148 components from 29 distinct parts.
Its main chip is the STM32F303-LQFP48, from the STM32 family. Other key parts include the USBLC6-2SC6 and MCP1700-3302E_SOT23. By type, the board carries 58 switches, 58 diodes, 3 ICs, 1 crystal, 1 connector and 1 fuse.
It belongs with the keyboards designs in this gallery.
From the project
Revision 2 of the Coqui Keyboard with STM32 MCU
Main components on the CoquiKeyboard
CoquiKeyboard bill of materials (BOM)
148 components, 29 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32F303-LQFP48 STMicroelectronics | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U2 |
| 1 | MCP1700-3302E_SOT23 | SOT-23 | U3 |
| 1 | 8MHz | Crystal_SMD_5032-4Pin_5.0x3.2mm | Y1 |
| 1 | TYPE-C-31-M12_13 Korean HRO | TYPE-C-31-M-12 | J1 |
| 5 | 100n | C_0805_2012Metric | CB1, CB2, CB3, CF1, CRO1 |
| 1 | 1u | C_0805_2012Metric | CB4 |
| 1 | 10n | C_0805_2012Metric | CB5 |
| 1 | 4.7u | C_0805_2012Metric | CB6 |
| 3 | 4.7n | C_0805_2012Metric | CRST1, CSH1, CUSB1 |
| 1 | 10u | C_0805_2012Metric | CRST2 |
| 2 | 22p | C_0805_2012Metric | CX1, CX2 |
| 1 | RB060M-60TR | D_SOD-123 | DF1 |
| 1 | 1N4148W | D_SOD-123 | DRST1 |
| 1 | 1N4007W | D_SOD-123 | DS1 |
| 1 | 1A | Fuse_0805_2012Metric_Pad1.15x1.40mm_HandSolder | F1 |
| 1 | DTC123J ROHM Semicon | SOT-23 | QRST1 |
| 2 | 5.1k | R_SMD_1206 | RCC1, RCC2 |
| 2 | 22R | R_SMD_1206 | RDN1, RDP1 |
| 1 | 1.5k | R_SMD_1206 | RDPUp1 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 100k | R_SMD_1206 | RRST1 |
| 1 | 1M | R_SMD_1206 | RSH1 |
| 1 | SW_Push | K2-1187SQ-A4SW-06 | SRST1 |
| 48 | MXSwitch | MX100H | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +40 |
| 6 | MXSwitch | MX125H | SW17, SW43, SW49, SW50, SW53, SW54 |
| 2 | MXSwitch | MX175H | SW29, SW32 |
| 1 | MXSwitch | MX225HR | SW51 |
| 1 | MXSwitch | MX275HR | SW52 |
| 58 | 1N4148W | D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8 +50 |
CoquiKeyboard design files
The KiCad project lives in the coquizen/CoquiKeyboardRev2 repository on GitHub; these links point at the commit this page was built from.
- LayoutCoquiKeyboard.kicad_pcb
- SchematicCoquiKeyboard.kicad_sch
CoquiKeyboard: common questions
What microcontroller does the CoquiKeyboard use?
The CoquiKeyboard is built around the STM32F303-LQFP48, from the STM32 family.
How big is the CoquiKeyboard PCB?
The CoquiKeyboard measures 307.9 × 77.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the CoquiKeyboard?
148 components, from 29 distinct parts. The full bill of materials is listed on this page.
Where can I download the CoquiKeyboard design files?
From the coquizen/CoquiKeyboardRev2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the CoquiKeyboard design in my own project?
The repository has no license, so all rights stay with coquizen. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the CoquiKeyboard without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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