Datasheet

Next we must insert the INA219 current sensor into the circuit we want to measure:

Connect to the circuit

Connect V+ to the positive terminal of the power supply for the circuit under test.

Be careful inserting noisy loads that can cause a sharp current draw, such as DC motors, since they can

cause problems on the power lines and may cause the INA219 to reset, etc. When using a DC motor or a

similar device, be sure to include a large capacitor to decouple the motor from the power supply and use a

snubber diode to protect against inductive spikes.