I've been successfully using a 433mhz transmitter with my RPi 3 to control some remote sockets with 433mhz receivers. I recently moved the project over to my RPi Zero and the transmitter has suddenly stopped working. I've confirmed multiple times that everything is the same (code, wiring, etc.), the only difference is the micro-controller.
I've tried switching GPIO pins but am getting the same result. I do know that the GPIO pins are working as I am able to read data off of a DHT22 with no problem. I was thinking that it is a power problem but I am using the same power supply between Pis. I have also confirmed that the transmitter has not been fried as it continues to work when using the RPi 3.
I'm really struggling to figure this out and would appreciate any insight. Thank you!