2023/10/12 10:51

Gravity: IIC to dual UART module Wiki - DFRobot

https://wiki.dfrobot.com/Gravity: IIC to Dual UART Module SKU: DFR0627

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The 4th bit: fixed, 1.

The 3rd bit: fixed, 0.

The 2nd and 1st bits: C1/C0 represents the sub UART channel number, for example. 00 for UART1, 01 for UART2.

The 0 bit: represents the operation object, 0 for register, 1 for FIFO.

Construct Object

When construct IIC to dual UART object, it is required to specify the sub UART(UART1 or UART2) and the value of IA2 and IA0. The

constructor is shown below：

DFRobot_IIC_Serial(TwoWire &wire = Wire, uint8_t subUartChannel = SUBUART_CHANNEL_1, uint8_t IA1 = 1, uint8_t IA0 = 1);

For operating UART1, pass the parameter SUBUART_CHANNEL_1; for UART2, pass SUBUART_CHANNEL_2;

If the status of the DIP switch on the module is A1(1),A2(0), then we should pass parameters 1 and 0 to the formal parameter IA1 and IA0.

For example, turn the DIP switch A1 to 1, A0 to 0;

Construct object, UART1;

DFRobot_IIC_Serial iicSerial(Wire, SUBUART_CHANNEL_1, /*IA1=*/1, /*IA0=*/0);//consctruct object UART1

Construct object, UART2;

DFRobot_IIC_Serial iicSerial(Wire, SUBUART_CHANNEL_2, /*IA1=*/1, /*IA0=*/0);//construct object UART2

Baud Rate Configuration