I've got a 2N3904 hooked up to a pin on a NodeMCU Board (3.3V logic). I am trying to short the button contacts on a fan remote to trigger the speed and such, however, when I pull the base high (3.3V) or low, nothing happens. The only way I can get the remote to send a signal is if I "manually" short the collector and the emitter. I have attached a schematic below for reference. I'm thinking it's the incorrect resistor value....
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