I got the following issue:
I have 3 TSOP4838 IR Receivers working perfectly fine on my Arduino Nano. But if I use a different 5Vpower supply - for testing I used a Mega - they transmit wrong values. They still receive a signal when sent, but the values are off.
The 3 Receivers connected in parallel to power, ground (of the Mega) and the signal pin of the Nano.
What could be the issue with my setup and what could possibly help?
It would be great to find a working solution such that I only need one wire going to the Nano and supply the Receivers from a different source.
Thanks for looking into it!