This small adapter allows to experiment with various RC5 infrared adapters. It simply reads IR signals lets say from remote control and gives a code. Holger Klabunde have constructed couple versions of RC5 analysers: One stand alone with alphanumeric LCD second sends code via USART to computer COM port.
Circuit uses TSOP1736 IR receiver modules that are optimized for 36kHz carrier signal. RC5 tester also accepts extended codes – up to 128 commands.