I've got a few devices made using the arduino board. I was asked to update the program. However I've different version which must be used for different arduino boards. Is there a way to get to know which arduino board (Nano, Micro, Tiny, etc.) is inside the device? Without disassembling the device.
I've got usb port or ICSP pins on the device's case. I can't open the case and learn the interior.