To measure the current on VBUS, VOUT1, or VOUT2 with an oscilloscope, measure the voltage across an external current-measurement resistor (not mounted).
For VBUS current measurement:
- Connect a suitable current-measurement resistor between the source and VBUS pin 1 on P2.
- Connect GND pin 4 on P2 to the source ground to ensure proper system grounding.
For VOUT1 current measurement:
- Connect a suitable current-measurement resistor between the load and VOUT1 pin 1 (or pin 2) on P4.
- Connect GND pin 3 (or pin 4) on P4 to the load ground to ensure proper system grounding.
For VOUT2 current measurement:
- Connect a suitable current-measurement resistor between the load and VOUT2 pin 1 (or pin 2) on P5.
- Connect GND pin 3 (or pin 4) on P5 to the load ground to ensure proper system grounding.
Note: It is recommended to use standard jumper wires compatible with 2.54
mm (0.1'') headers. Make sure the jumper wires are rated for the current.