I’m building a wireless 12V PWM LED Controller using Arduino Nano, IRF520N Mosfet and a generic 433Mhz RF Receiver
I am building my code around the rc-switch library.
Everything works as expected until I plug the Signal Wire from the Arduino into the Mosfet Board
On plugging in, I have a lot of trouble reading RF codes sent from my remote unless I go very close to the antenna (<10cm) which is obviously impractical.
It feels like there’s some sort of interference but diagnosing it is out of my skillset
I’ve attached Schematic, Arduino Code and a video link showing the problem
This circuit is in a vehicle running off the 12v battery. The engine/alternator is not running
Thanks in advance
RF_LED_Controller.ino (4.03 KB)