Reference
This reference guide covers the DFRobot_GDL library and communication protocols such as I2C, UART, and SPI, providing links to datasheets and schematics for enhanced understanding.
Library
- DFRobot_GDL Library: Required for driving SPI displays (used in the Driving an SPI Display example). Install via Arduino Library Manager or download from DFRobot's official website.
Communication Protocol Description
- I2C: Standard I2C interface with SDA (GPIO8), SCL (GPIO9), VCC (3.3V), GND.
- UART: RX (GPIO20), TX (GPIO21), VCC (5V), GND. Note: UART shares pins with servo ports, so UART cannot be used when servos are connected.
- SPI: Used for driving the IPS display (pins assigned in the Driving an SPI Display example).
Other Supplementary Information
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