https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL18231_%E2%80%93_1.14inch_LCD_Module%2FenWSAL18231 – 1.14inch LCD Module/en - Versionsgeschichte2026-10-23T21:58:48ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL18231_%E2%80%93_1.14inch_LCD_Module/en&diff=1762&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-05T22:36:18Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
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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.<br />
<br />
== Summary ==<br />
The 1.14-inch LCD module (WSAL18231) is an IPS display with 240×135 pixels and an ST7789VW controller. It connects via SPI, supports 3.3 V/5 V operating voltage, and uses the RGB565 color format.<br />
<br />
== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL18231 WSAL18231 – 240×135, General 1.14inch LCD Display Module, IPS, 65K RGB]<br />
<br />
== Technical overview ==<br />
* Resolution: 240 (H) × 135 (V) pixels; active area approx. 14.864 × 24.912 mm<br />
* Controller: ST7789VW; interface: four-wire SPI<br />
* Color formats: 12-bit (RGB444), 16-bit (RGB565), 18-bit (RGB666); demos use RGB565<br />
* Operating voltage: 3.3 V or 5 V – supply and logic voltages must match<br />
* Module dimensions: 35 (H) × 32 (V) mm<br />
* Raspberry Pi connection via PH2.0 8-pin cable; pin mapping per manual table<br />
* STM32 example (STM32F103RBT6): DIN=PA7, CLK=PA5, CS=PB6, DC=PA8, RST=PA9, BL=PC7<br />
* Arduino UNO: DIN=D11, CLK=D13, CS=D10, DC=D7, RST=D8, BL=D9<br />
* SPI protocol: CPHA/CPOL determine clock behavior; SPI0 (CPHA=0, CPOL=0) is commonly used<br />
* Maximum power consumption: 90 mA at 5 V or 29.5 mA at 3.3 V<br />
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'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
sudo raspi-config → Interfacing Options → SPI → Yes<br />
sudo reboot<br />
sudo wget https://files.waveshare.com/upload/8/8d/LCD_Module_RPI_code.zip<br />
cd LCD_Module_RPI_code/RaspberryPi/c && sudo make clean && sudo make -j 8<br />
sudo ./main 1.14<br />
cd python/examples && sudo python3 1inch14_LCD_test.py<br />
apt-get install p7zip-full && wget https://files.waveshare.com/upload/e/e9/LCD_Module_code.7z && 7z x LCD_Module_code.7z -o./LCD_Module_code<br />
python3 1inch14_LCD_test.py<br />
</syntaxhighlight><br />
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== Notes and version constraints ==<br />
* STM32 pin mapping refers to the XNUCLEO-F103RB example board; adapt for other boards<br />
* On Bookworm systems only lgpio is available; bcm2835 and wiringPi cannot be installed<br />
* FBCP is incompatible with the Bookworm system; Bullseye is recommended<br />
* Ensure no other device occupies the SPI bus before use (check /boot/config.txt)<br />
* Power supply: do not mix 3.3 V and 5 V supply voltages<br />
<br />
== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/1.14inch_LCD_Module 1.14inch LCD Module - Waveshare Wiki]<br />
* Source revision: 75049<br />
* Captured: 2026-09-01T03:14:20+00:00<br />
* SHA-256: <code>b4d451d171dbb0736bae83277d5e3a1e2c76ebbbaa2236c99a8648a640e4fa18</code></div>JWTechPublisher