How to send PWM signal via RF module?

Thread Starter

ondry

Joined May 14, 2024
2
Hello,

I would like to flash the LED using the RF module. The circuit is solved by encoder and decoder HT12e and HT12d, transmission by RF module FSA1000A. When buttons are brought to pins 10 to 13, the circuit works. When I put the BJT NPN BC547 instead of the button on, the circuit stopped working. I wanted to feed a PWM signal to the base of the transistor.
Could the circuit work if I use mosfet instead of BJT?

Thank you for any response!
 

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