Simple Ir Transmitter

  
The IR diode`s flash rate is determined by the value of CI, a 220-Â¥ capacitor that sets the rate of oscillation at 1
Simple Ir Transmitter - schematic

Hz per second. Reducing Ci will increase the frequency of the circuit, while larger values will decrease the frequency. Because the circuit only sends out single, narrow pulses of invisible light, the IR receiver only responds with a click for every output pulse.




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