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2026-09-05T22:28:43Z

Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
The Pico-LCD-1.44 is a 1.44-inch TFT display module with 128×128 pixels and 65K colors (RGB565) that communicates with the Raspberry Pi Pico via a 4-wire SPI interface. It connects through GPIOs GP8–GP17 and can be driven using C, MicroPython, or Arduino demos.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL19576 WSAL19576 – 1.44inch LCD Display Module for Raspberry Pi Pico, 65K Colors, 128×128, SPI]

== Technical overview ==
* Resolution: 128 × 128 pixels; color format RGB565 (16 bits/pixel).
* Controller: ST7735S; display area starts at the second pixel horizontally and first pixel vertically.
* Operating voltage: 3.3 V; communication: 4-wire SPI (SDA, SCL, CSX, DCX, RESX).
* Pico pin mapping: DIN→GP11 (MOSI), CLK→GP10 (SCK), CS→GP9, DC→GP8, RST→GP12, BL→GP13, KEY0→GP15, KEY1→GP17, KEY2→GP2, KEY3→GP3.
* C demo: enable LCD_1in44_test() in main.c, then compile in c/build using cmake (cmake -DPICO_BOARD=pico -DPICO_PLATFORM=rp2040 .. for Pico, or pico2/rp2350 for Pico 2) and run make -j.
* MicroPython: use Thonny IDE; flash firmware rp2-pico-20210418-v1.15.uf2 (Pico) or rp2-pcio2-20240809-v1.24.0.uf2 (Pico 2) onto the Pico and run the Pico-LCD-1.44.py script.
* Arduino: install “pico” via Board Manager, open demo D1-LED.ino, and upload via Tools > Port and Tools > Development Board.
* The GUI API encapsulates the hardware layer; DEV_Config.c/.h defines data types (UBYTE, UWORD, UDOUBLE) plus init/exit functions DEV_Module_Init/DEV_Module_Exit.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
sudo apt-get install p7zip-full
sudo wget https://files.waveshare.com/wiki/common/Pico_code.7z
7z x Pico_code.7z -o./Pico_code
cd ~/Pico_code/c/build/
export PICO_SDK_PATH=../../pico-sdk
cmake -DPICO_BOARD=pico -DPICO_PLATFORM=rp2040 ..
cmake -DPICO_BOARD=pico2 -DPICO_PLATFORM=rp2350 ..
make -j
cp main.uf2 /media/pi/RPI-RP2/
cp main.uf2 /media/pi/RP2350
</syntaxhighlight>

== Notes and version constraints ==
* Pinout accuracy depends on the actual hardware revision; verify orientation using the USB silkscreen before soldering.
* The cmake commands assume a locally available Pico SDK path; if missing, download it first.
* Thonny must include Pico support; older versions need updating (sudo apt upgrade thonny).
* On first-time Arduino upload, copy the .uf2 file via mass storage first; only then does a COM port appear.
* Firmware versions cited in the source (v1.15 and v1.24.0) may be outdated; verify current firmware status before flashing.

== Source and revision record ==
* [https://www.waveshare.com/wiki/Pico-LCD-1.44 Pico-LCD-1.44 - Waveshare Wiki]
* Source revision: 111050
* Captured: 2026-09-01T04:31:44+00:00
* SHA-256: <code>5a7bda7c7002e461e124b7251981a484fedeab2eb2296f373a457dddff4af8ea</code>

WSAL19576 – Pico-LCD-1.44/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex