https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL19537_%E2%80%93_LCD1602_RGB_Module%2FenWSAL19537 – LCD1602 RGB Module/en - Versionsgeschichte2026-10-23T23:04:18ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL19537_%E2%80%93_LCD1602_RGB_Module/en&diff=1334&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-05T22:27:45Z<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 LCD1602 RGB Module is a 16x2 character LCD with an I2C interface and adjustable RGB backlight. It operates at 3.3 V or 5 V and uses the AiP31068L driver and PCA9633 RGB control chip.<br />
<br />
== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL19537 WSAL19537 – LCD1602 RGB Module, 16x2 Characters LCD, RGB Backlight, 3.3V/5V, I2C Bus]<br />
<br />
== Technical overview ==<br />
* Display: 16 columns × 2 rows (character LCD).<br />
* Interface: I2C using only two signal wires (SDA/SCL); no extra hardware needed beyond the module's own I2C bus.<br />
* Operating voltage: 3.3 V or 5 V; operating current ~26 mA at 5 V and ~13 mA at 3.3 V.<br />
* Backlight: RGB, theoretically up to 16 M colors (256³) via the PCA9633 driver.<br />
* Dimensions: module 87.0 × 32.0 × 13.0 mm; display window 64.5 × 16.0 mm.<br />
* Pinout: VCC (3.3 V/5 V), GND, SDA, SCL.<br />
* Raspberry Pi: enable I2C via `sudo raspi-config`, then reboot with `sudo reboot`.<br />
* Wiring for Raspberry Pi: SDA → GPIO3 (BCM2835), SCL → GPIO5; VCC → 3.3 V, GND → GND.<br />
* Pico: SDA → GP4, SCL → GP5; VCC → 3.3 V, GND → GND.<br />
* Arduino: direct wiring of VCC, GND, SDA and SCL; install the library by unzipping into the Arduino IDE libraries folder or via “Include Library”.<br />
<br />
'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
sudo raspi-config<br />
sudo reboot<br />
cd ~ && wget https://files.waveshare.com/upload/5/5b/LCD1602-RGB-Module-demo.zip && unzip LCD1602-RGB-Module-demo.zip<br />
cd ~/LCD1602-RGB-Module-demo/Raspberry && sudo chmod 777 * && sudo python Choose_Color.py<br />
sudo python Discoloration.py<br />
wget -P ~/pico https://files.waveshare.com/upload/5/5b/LCD1602-RGB-Module-demo.zip && cd ~/pico && unzip LCD1602-RGB-Module-demo.zip<br />
cd ~/pico/LCD1602-RGB-Module-demo/Pico/c/build/ && cmake .. && make<br />
sudo mount /dev/sda1 /mnt/pico && sudo cp LCD1602_RGB_Module_demo.uf2 /mnt/pico/ && sudo sync && sudo umount /mnt/pico && sleep 2<br />
</syntaxhighlight><br />
<br />
== Notes and version constraints ==<br />
* Demo files are downloaded from an external URL; without network access in the sandbox they cannot be fetched.<br />
* Per the source, the LCD’s I2C address cannot be changed; therefore two identical modules cannot be driven simultaneously with different content.<br />
* If only the second line appears when running the Python demo, it may be a firmware incompatibility; use the provided firmware version.<br />
* The Pico demo requires the correct firmware (e.g., rp2-pico-20220117-v1.18); otherwise the display may misbehave.<br />
* Cable color may vary; connections should follow the pin definitions rather than cable color.<br />
* The PH2.0 4-pin connector part numbers are not given in the source; contact the supplier for ordering information.<br />
<br />
== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/LCD1602_RGB_Module LCD1602 RGB Module - Waveshare Wiki]<br />
* Source revision: 87160<br />
* Captured: 2026-09-01T04:28:04+00:00<br />
* SHA-256: <code>3b29a2c071a1bb9d8fcef0982be6c7a59c496d763f174ff7ec8818bca2b76d59</code></div>JWTechPublisher