Quelltext der Seite WSAL22224 – 1.47inch LCD Module/en

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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 ==
Technical guide for the 1.47-inch LCD module with ST7789V3 controller, SPI connection and examples for Raspberry Pi, STM32 and Arduino.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL22224 WSAL22224 – 1.47inch LCD Display Module, Rounded Corners, 172x320 Resolution, SPI Interface]

== Technical overview ==
* Resolution: 172 x 320 pixels; IPS type
* Supply voltage: 3.3 V or 5 V; supply and logic voltages must match
* Interface: 4-wire SPI; ST7789V3 supports RGB444/RGB565/RGB666 color formats
* Connection to Raspberry Pi via PH2.0 8-pin cable per pin mapping table
* Example programming for STM32F103RBT6 with provided pin mapping
* Arduino UNO pin mapping available
* SPI mode 0 (CPHA=0, CPOL=0) is commonly used
* Python demos run without additional library installation on Bookworm

'''Commands and examples – verify before use:''' 
<syntaxhighlight lang="text">
sudo raspi-config
sudo reboot
sudo ./main 1.47
sudo python3 1inch47_LCD_test.py
</syntaxhighlight>

== Notes and version constraints ==
* Pin mappings are device-specific; adapt them for other boards
* The FBCP porting replaces /boot/config.txt and /etc/rc.local - back them up first
* Version-sensitive steps: BCM2835/wiringPi are unavailable on Bookworm, only lgpio
* Maximum brightness 380 cd/m² and current draw 47 mA apply at 3.3 V only

== Source and revision record ==
* [https://www.waveshare.com/wiki/1.47inch_LCD_Module 1.47inch LCD Module - Waveshare Wiki]
* Source revision: 100991
* Captured: 2026-09-03T03:44:10+00:00
* SHA-256: <code>f70c35f262654c61f8434998cfe8081336170bcd95a58ae1372272f0bb38525a</code>