Fig. 1: Prototype of Arduino and TSOP1738 based Universal IR Remote Control Receiver
Fig. 2: Overview of Arduino based Universal IR Remote Control
The remote controls for electronic appliances use IR (Infra-Red) communication technique. A specific code is assigned to each key of the remote , based on a standard protocol.
The TSOP is a miniaturized receiver for infrared remote control systems. PIN diode and preamplifier are assembled on lead frame, while the epoxy package is designed as IR filter. The demodulated output signal can be directly decoded by a microprocessor. TSOP is the standard IR remote control receiver series, supporting all major transmission codes. Its output is Active Low.
Fig. 3: Pin Diagram of TSOP1738 IR Receiver
How to Decode a Remote?
Fig. 4: Circuit Diagram of Arduino based IR Remote Receiver
Making Up the Universal Remote
Fig. 5: Image showing different circuit sections of Arduino based Universal IR Remote Control Receiver
Fig. 6: Image showing Arduino based Universal IR Remote Receiver in action