Arduino UNO
Base Shield
Grove - Mini I2C
Motor Driver
5V
I2C port
VCC
GND
GND
SDA
SDA
SCL
SCL
CH1 fault indicator
- Channel 1 fault indicator.
CH2 fault indicator
- Channel 2 fault indicator.
Direction indicator
- Motor direction indicator.
CH1 Output Connector
- Motor 1 connector.
CH2 Output Connector
- Motor 2 connector.
Hardware function
Change Default maximum drive current
The default maximum drive current of each channel is 200mA, see the front picture of the board
Each channel (CH1,CH2) has been added a resistor, and each value of resistor (R5,R12) is 1 Ω,
so the maximum drive current is 200mA according to the following equation
