![]() But if, say, I use only one of them, then, how long can the wires be, to still get the signal from the pressed button (I guess it depends on the resistance of the wire, isn't it?)? I thought of placing different control panels in different places, and thus needed a lot of arduinos. Radman, you might be right, I'll rethink the concept. ![]() However, I read somewhere that Arduino Uno can only establish one serial connection at a time (be it a virtual port or not). At the same time, the board itself has some pins, labled tx / rx - so, may be, I can connect it to the other board AND to computer. Now that I come think of it, may be I am wrong, I am using a usb cable to link arduino to the laptop with Processing. At the asme time - to communicate between Processing and Arduino I also need a serial port (arduino uno has only one) ![]()
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