problem on the pin 40 of my RPi4
Posted: Mon Mar 11, 2024 4:23 pm
hello everyone,
I use an RPi4 on my PORTSDOWN transceiver
in rx pin 40 is at 2.42 V !!!
and goes to 3.34 in position tx
the problem is that this pin 40 is not at 0 in rx
I can't use it to switch an amplification chain
Do you have an idea ? or another pin to use ?
F1FCO, Pierre, southern France
I use an RPi4 on my PORTSDOWN transceiver
in rx pin 40 is at 2.42 V !!!
and goes to 3.34 in position tx
the problem is that this pin 40 is not at 0 in rx
I can't use it to switch an amplification chain
Do you have an idea ? or another pin to use ?
F1FCO, Pierre, southern France