I have a remote control with several pad butts on it and i want to be able to simulate pushing multiple ones. I have been able to simulate pressing each one but when i solder both of them up the board seems to get confused and only presses one button.
Im using gpio pins 4 & 26 (wiring pi numbering) and am using a rpi3 model b. Also, it seems (from my limited knowledge) to be a pull up circuit. I.e. the command 'gpio write 4 1' means off and 'gpio write 4 0' means on.
With this, I can successfully simulate clicking number '4'. If i remove it and do the same to another button, that button will work. If i soldee both, the remote seems to get confused and wont press the right button.
any help is greatly appreciated.