2 layers39.5 × 62.5 mm
Testy parts
mmalex/wookash_thing
a small rp2040 based thing for a livestream with wookash
58 parts10MIT
2 layers39.5 × 64.7 mm
a small rp2040 based thing for a livestream with wookash
- Size
- 39.5 × 64.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 87
- Pads
- 288
- Tracks, vias
- 758, 136
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Jan 2026
- Updated
- 15 Feb 2026
Overview
Testy is an open-source printed circuit board by mmalex, from the mmalex/wookash_thing repository on GitHub, published under the MIT licence. It is a 2-layer board of 39.5 × 64.7 mm with 65 parts on 87 nets, routed with 758 tracks and 136 vias.
It is built around the RP2040, MAX98357AETE+T and W25Q16JVUXIQ, with the AP2112K-3.3TRG1, LIS2DW12TR-MS and SM03B-SRSS-TB(LF)(SN)(P) among its other parts. Its parts include 23 capacitors, 17 resistors, 7 ICs, 5 diodes and 4 connectors. It belongs with the RP2040 boards of this library.
Main components
9
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
MAX98357AETE+T
TQFN-16-EP(3x3)-40℃~+85℃ 2.4mA 2.5V~5.5V 3.2Wx1@4Ω 77dB 92% Automatic mute/no-noise switch、Enable/shutdown function、Filterless architecture Class D TQFN-16-EP(3x3) Audio Amplifiers ROHSMaxim Integrated (Analog Devices)Audio Amplifiers
W25Q16JVUXIQ
USON-8-EP(2x3)-40℃~+85℃ 100,000 cycles 10uA 133MHz 16Mbit 2.7V~3.6V 20 Years 3ms SPI USON-8-EP(2x3) NOR FLASH ROHSWinbond ElecNOR FLASH
AP2112K-3.3TRG1
SOT-25-5-40℃~+85℃@(Ta) 1 250mV@(600mA) 3.3V 50uVrms 55uA 600mA 65dB@(1kHz) 6V Fixed Over Current Protection、Thermal Shutdown、Enable control Positive SOT-25-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LIS2DW12TR-MS
LGA-12(2x2)-40℃~+85℃ 1.71V~3.6V 12bit 500nA Accelerometer SPI、I2C X,Y,Z ±16g LGA-12(2x2) Accelerometers ROHSMSKSEMIAccelerometers
SM03B-SRSS-TB(LF)(SN)(P)
-- Lack of specifications ROHSJSTUncategorised2PIN
UncategorisedSPST
BAW56
SOT-23Switching Diodeshongjiacheng
TXM12M0004252FBCEO00T
SMD2520-4P-40℃~+85℃ 120Ω 12MHz 12pF Crystal Oscillator ±10ppm ±30ppm SMD2520-4P Crystals ROHSYajingxinCrystals
README
README.mdfrom a livestream with wookash on Friday 2026-01-16
(youtube link forthcoming)
small Raspberry Pi RP2040 'demo' project, with 4 choc-switch buttons, rgb leds, a TFT screen, captouch around the bezel, an SWD programming header, lipo battery connection, and speaker connections.
Mostly untested - planning to order shortly to see if it works.
See notes.txt for JLC part numbers used during the stream, and a few links.
- keyboard lib - https://github.com/ebastler/marbastlib
- easyeda2kicad - https://github.com/uPesy/easyeda2kicad.py
- jlc part search - https://yaqwsx.github.io/jlcparts/#/
- keyswitch 3d models https://github.com/koktoh/keyswitch_model.git
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100n | easyeda2kicad:C0402 | C5, C6, C7, C8, C9, C12, C13, C14, C15, C16, C17, C18, C21, C23 |
| 6 | 33 | easyeda2kicad:R0402 | R5, R6, R14, R15, R16, R17 |
| 6 | 5.1K | easyeda2kicad:R0402 | R1, R2, R7, R9, R10, R12 |
| 4 | 1K | easyeda2kicad:R0402 | R3, R4, R8, R13 |
| 4 | 1u | easyeda2kicad:C0402 | C3, C4, C10, C11 |
| 4 | choc_v1_SW_solder | PCM_marbastlib-choc:SW_choc_v1_1u | CH1, CH2, CH3, CH4 |
| 3 | 10u | easyeda2kicad:C0805 | C1, C2, C22 |
| 2 | 18p | easyeda2kicad:C0402 | C19, C20 |
| 2 | 2pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1, J3 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2 |
| 2 | choc_SK6812MINI-E | PCM_marbastlib-choc:LED_choc_6028R | LED1, LED2 |
| 2 | choc_SK6812MINI-E | PCM_marbastlib-choc:LED_choc_6028R-ROT | LED3, LED4 |
| 1 | 1.3_tft | plinky:tft 1.3 | J2 |
| 1 | 100K | easyeda2kicad:R0402 | R11 |
| 1 | AP2112K-3.3TRG1 | easyeda2kicad:SOT-25-5_L2.9-W1.6-P0.95-LS2.8-BL | U2 |
| 1 | BAW56 | easyeda2kicad:SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BL-1 | D1 |
| 1 | BQ24075RGTR | easyeda2kicad:QFN-16_L3.0-W3.0-P0.50-TL-EP1.7 | U1 |
| 1 | LIS2DW12TR | easyeda2kicad:LGA-12_L2.0-W2.0-P0.50-BL | U6 |
| 1 | MAX98357AETE+T | easyeda2kicad:TQFN-16_L3.0-W3.0-P0.50-BL-EP1.5 | U7 |
| 1 | RP2040 | easyeda2kicad:LQFN-56_L7.0-W7.0-P0.4-EP | U3 |
| 1 | SM03B-SRSS-TB(LF)(SN)(P) | easyeda2kicad:CONN-SMD_SM03B-SRSS-TB-LF-SN-P | U5 |
| 1 | SM04B-SRSS-TB (LF)(SN) | easyeda2kicad:CONN-SMD_4P-P1.00_SM04B-SRSS-TB-LF-SN | CN1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | TXM12M0004252FBCEO00T | easyeda2kicad:OSC-SMD_4P-L2.5-W2.0-BL | X1 |
| 1 | TYPE-C 16PIN 2MD(073) | easyeda2kicad:USB-C-SMD_TYPE-C-6PIN-2MD-073 | USB1 |
| 1 | W25Q16JVUXIQ | easyeda2kicad:USON-8_L3.0-W2.0-P0.50-BL-EP | U4 |
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Questions
How big is the Testy PCB?
It measures 39.5 × 64.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Testy use?
65 parts, built around the RP2040, MAX98357AETE+T, W25Q16JVUXIQ and AP2112K-3.3TRG1. 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 Testy KiCad files?
From the mmalex/wookash_thing repository on GitHub, at the commit this page was made from: the board is hw/testy.kicad_pcb and its schematic hw/testy.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Testy design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).