2 layers18.5 × 11.1 mm
Switch
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
6 parts4.3kMIT
2 layers99.1 × 55.9 mm
Pico TFT combiner
DustinWatts/Pico-Matrix-Touch-Keyboard59A touchscreen matrix using an 3.5" ILI9488 TFT with resistive touch and a Raspberry Pi Pico
- Size
- 99.1 × 55.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 37
- Pads
- 151
- Tracks, vias
- 124, 11
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 17 May 2021
- Updated
- 30 May 2022
Overview
Pico TFT combiner is an open-source printed circuit board by DustinWatts, from the DustinWatts/Pico-Matrix-Touch-Keyboard repository on GitHub, published under the MIT licence. It is a 2-layer board of 99.1 × 55.9 mm with 6 parts on 37 nets, routed with 124 tracks and 11 vias.
Its parts include 5 connectors and 1 IC. It belongs with the lEDs and displays boards and the RP2040 boards of this library.
README
README.mdPico-Matrix-Touch-Keyboard
A touchscreen matrix using an 3.5" ILI9488 TFT with resistive touch and a Raspberry Pi Pico. The Raspberry Pi Pico has native HID Keyboard support. This sketch gives you 12 buttons in a 4x3 matrix. Each button can have one or more keyboard functions.
Earle Philhower's arduino-pico core
Installing the arduino-pico (https://github.com/earlephilhower/arduino-pico) core:
- In the Arduino IDE go to File->Preferences.
- Under "Additional Board Manager URLs" add this line:
https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json. Click OK. - Go to Tools->Boards->Board Manager. Type "pico" in the search box and click "Install" for "Raspberry Pi Pico/RP2040".
Upload settings
The sketch and board have been tested with the following Board Settings:
LittleFS
This example uses LittleFS for a tiny bit of storage. Storage is needed to store the calibration file that is created when calibrating the touchscreen. So make sure when you flash the Pico, you flash it with at least 64KB for the FS under "Flash Size".
Pico TFT Combiner board
For better connections and a nice finished project you can use the Pico + TFT Combiner board I designed. You can order these straight from PCBWay (https://www.pcbway.com/project/shareproject/Pico_Matrix_Touch_Keypad.html), donwload the gerbers, or the Kicad project. You can find them in the Pico_TFT_Combiner_Board folder of this repository.
Connections
You can use the diagrams below if you want to connect the screen without using the combiner board.
Support Me
If you like what I am doing, there are a number of ways you can support me.
| Platform | Link |
|---|---|
 | You can follow me on Twitter: @dustinwattsnl |
 | You can subscribe to my channel on Youtube: /dustinWatts |
 | You can support me by becoming a patron on Patreon: https://www.patreon.com/dustinwatts |
 | You can make a one time donation using PayPal.me: https://www.paypal.me/dustinwattsnl |
Get help
For quick access to help you can join my Discord server: https://discord.gg/RE3XevS
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x20_Male | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J3, J4 |
| 1 | Conn_01x03_Female | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J1 |
| 1 | Conn_01x04_Male | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | ILI9488_Touch | Connector_PinHeader_2.54mm:PinHeader_1x14_P2.54mm_Vertical | J2 |
| 1 | Pico | RPi_Pico:RPi_Pico_SMD_TH | U1 |
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Questions
How big is the Pico TFT combiner PCB?
It measures 99.1 × 55.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pico TFT combiner use?
6 parts. 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 Pico TFT combiner KiCad files?
From the DustinWatts/Pico-Matrix-Touch-Keyboard repository on GitHub, at the commit this page was made from: the board is Pico_TFT_Combiner_Board/Pico_TFT_combiner.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pico TFT combiner 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).