Touchscreen tester
About the Touchscreen tester PCB
Touchscreen tester is an open source PCB design by dstahlke, published on GitHub under the MIT license. It is a 2-layer board measuring 38.1 × 33.7 mm, with 5 components from 4 distinct parts.
Other key parts include the SeeeduinoXIAO and TJCTM24024-SPI. By type, the board carries 2 ICs, 2 resistors and 1 jumper.
From the project
CircuitPython tester for ILI9341 320x200 2.4" touch screen
These are the ubiquitious units available from Chinese sellers always on a red PCB and having an SD card slot. The purpose here is to allow basic testing of these boards, and perhaps to serve as a minimal example program.
The KiCad project is in the pcb subdirectory. Or you can use this shared project on OSH Park: https://oshpark.com/shared_projects/n6qEPelo
Bill of materials: Adafruit QT Py ESP32-S2 0805 footprint 62 ohm resistor for R1. I think some boards connect the "LED" wire directly to the backlight and others need a digital signal. In any case, a 62 ohm resistor should work for all…
Main components on the Touchscreen tester
Touchscreen tester bill of materials (BOM)
5 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SeeeduinoXIAO | Seeeduino XIAO-MOUDLE14P-2.54-21X17.8MM | U1 |
| 1 | TJCTM24024-SPI | TJCTM24024-SPI-NODRILL | U2 |
| 1 | Jumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP1 |
| 2 | R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
Touchscreen tester design files
The KiCad project lives in the dstahlke/touchscreen_tester repository on GitHub; these links point at the commit this page was built from.
Touchscreen tester: common questions
How big is the Touchscreen tester PCB?
The Touchscreen tester measures 38.1 × 33.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Touchscreen tester?
5 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the Touchscreen tester design files?
From the dstahlke/touchscreen_tester repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Touchscreen tester design in my own project?
Yes, under the terms of its MIT license, which dstahlke chose for the repository.