Description
The ELM339 is a complete remote control decoder in an 8 pin package. With the addition of a standard infrared receiver module, three individual outputs can be simultaneously controlled using a television remote control transmitter.
This circuit responds to Sony™ television control codes, chosen because most universal remotes default to them when initially powered up. The ELM339 continuously monitors the stream of data from an infrared receiver module looking for these Sony type remote control codes. If an appropriate three digit code is detected, the selected output either turns on, turns off, or switches its state.

Features
• Low power CMOS design - typically 1mA at 5V
• Three separate outputs
• Pulse output for momentary controls
• Signal received output for visual feedback
• Easy interface to standard receiver modules
• Works with universal TV remote transmitters
• High current drive outputs - up to 25 mA

Applications
• Basic home automation systems
• Remote smoke alarm test initiator
• Garage door controller
• Lamp controller