ToadsTempest
About the ToadsTempest PCB
ToadsTempest is an open source WCH CH32/CH55x PCB design by tikinson, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 94.9 × 76 mm, with 73 components from 10 distinct parts.
Its main chip is the CH552T, from the WCH CH32/CH55x family. Other key parts include the USBLC6-2SC6. By type, the board carries 42 switches, 22 diodes, 3 resistors, 2 ICs, 2 capacitors and 1 connector.
It belongs with the keyboards designs in this gallery.
From the project
Super small custom 42-keys column-staggered ergonomic mechanical keyboard powered by CH552T microcontroller, created for pocket keyboard design contest #00
I want to be savage, I like Jiraiya a lot, I want to participate in a challenge. This project is in intersection of those three ideas. Also I was surprised about possibilities of F.A.K. and resourses like Keyboard Builders' Digest.
Super small custom 42-keys column-staggered ergonomic mechanical keyboard powered by CH552T microcontroller, created for pocket keyboard design contest #00
Main components on the ToadsTempest
ToadsTempest bill of materials (BOM)
73 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USBLC6-2SC6 | SOT-23-6 | U1 |
| 1 | CH552T | TSSOP-20_4.4x6.5mm_P0.65mm | U2 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | 500mA | Fuse_0402_1005Metric_Pad0.77x0.64mm_HandSolder | F1 |
| 42 | SW_Push | BZCN-tsc003 | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +34 |
| 21 | BAV70_Small | SOT-23_Handsoldering | D1, D2, D3, D4, D5, D6, D7, D8 +13 |
| 1 | PMEG2010EA | D_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D22 |
| 2 | 100nF | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C2 |
| 2 | 5.1k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2 |
| 1 | 10k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3 |
ToadsTempest design files
The KiCad project lives in the tikinson/ToadsTempest repository on GitHub; these links point at the commit this page was built from.
- LayoutToad'sTempest.kicad_pcb
- SchematicToad'sTempest.kicad_sch
ToadsTempest: common questions
What microcontroller does the ToadsTempest use?
The ToadsTempest is built around the CH552T, from the WCH CH32/CH55x family.
How big is the ToadsTempest PCB?
The ToadsTempest measures 94.9 × 76 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ToadsTempest?
73 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the ToadsTempest design files?
From the tikinson/ToadsTempest repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the ToadsTempest design in my own project?
Yes, under the terms of its CC0-1.0 license, which tikinson chose for the repository.
Can I test firmware for the ToadsTempest without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug WCH CH32/CH55x firmware against it before you order a PCB.
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