Set up the communication mode


There are 3 different communication modes on all products: UART, I2C and SPI, what you need is just use solder to short the I2C/SPI jumper on adapter and make it works at I2C or SPI, if both jumpers are open, it works at UART, you can find a similar jumper like this: on board.

 

PROTOCOLS:

• UART : 8-N-1, 8bits, No parity bit, 1 stop bit.

• I2C: Slave Mode, 7-bit address, default address is Hex:27, change able. This mode may give you a headache due to more signal options in I2C, but we make it works as standard, you just need setup your I2C on master controller as Standard Master Mode.

• SPI: 8-bits, MSB first, data on raise edge of SCK sampled; this is Standard setting on SPI too.

Connect the master control to display: