Saturday, May 24, 2008
IR Receiver Circuit Diagram
Below is the receiver circuit diagram. It comprises IR sensor TSOP1738 (IR RX1), npn transistor BC548, timer NE555 and some resistors and capacitors. IC is wired as a monostable multivibrator with a time period of around 30 seconds. You can control the output duration (currently ~30 Sec) by changing the value of the 47uf capacitor.