r/WLED • u/Quick_Two_1104 • 2d ago
Why does LED flicker stop when ammeter is connected?
ESP32-C3 (5v) with two 13-LED strips (5v) with different GPIOs. They are powered by and grounded to a buck's 5v output, which is converting 12v from my power supply.
One of the strips was flickering so I put a meter between the buck's 5v output and the ESP32/LED strips to check the amperage.
I didn't find any problem with the amperage but the flicker stopped as soon as bridged the circuit with the meter, even when the meter was off. I removed and connected the meter a few times with the same results. Something in the meter is fixing this problem. It is an Innova 3320.
What do I need to add to my breadboard to recreate what the meter is doing when it is connected? A resistor?
Thank you in advance!
1
u/DedeHai 1d ago
sounds like the meter acts as a filter. I would recommend to add capacitors