[![Grove - LCD RGB Backlight](http://www.seeedstudio.com/depot/images/product/LCD%20RGB.jpg)](http://www.seeedstudio.com/depot/grove-lcd-rgb-backlight-p-1643.html ...
NOTE: Arduino Nano ESP32 (based on the Espressif microcontroller) is a 3.3V device, whereas V4 of the Grove LCD is a 5V device. The Grove LCD is controlled on the IC2 bus. The IC2 protocol allows for ...