Hello, I´m trying to measure the current from a LED strip with the sensor ACS712 ±5A. Also, I´m using a TIP120 to regulate the strip with a PWM. The problem is when I measure with the multimeter the lectures are 0 A and 0.34A with the minimun and maximun value of PWM, but with the sensor the lectures are 7.5 and 7.9 A respectively. Attached I send the circuit in a picture. I hope someone has some idea what is happening.
PD: I used the codes examples from internet, so I think the problem is not there.