Meantime, each channel provides a reserved solderable pad (R6 for CH1, R13 for CH2), so you
can solder a resistor onto the board to change the resistor value of each channel. Following is the
new equation if adding resistor to the board
Caution:
Maximum working current of each channel should not be more than 1A. So the minimum
value of resistor soldered to the reserved pad should not less than 0.2 Ω.
Change Default I
2
C Address
The I
2
C address of each channel is changeable. Please take a look at the back side of the board,
you will find there's 4 jumper pads, A0_CH1 and A1_CH1 are for channel 1, A0_CH2 and
A1_CH2 are for channel 2. As shown below:
