I have 2 arduinos performing completely different tasks that I want to operate at the same time. I want both of them to receive the same signal from the same USB wire, and I only want one of them to send data back to USB.
I figured to do this, all I'd need to do was bridge the RX pins on both arduinos, but that doesn't seem to do anything. I'd prefer not to do softwareserial when I'm looking to use a signal that already exists. Besides, serial transmissions do affect the speed of the program so I'd rather not slow it down by using the software serial library.