This circuit is very necessary in our album have indispensable knowledge, acts in a very simple, with any remote control can trigger some kind of distance appliance or other electronic device.
The operation is very simple at the receiver which is a 38KHz signal demodulator. Enter the remote control signal is then amplified by the transistor, is then sent to a CMOS counter 4017, which alternated between two states only, in this example we put more than two LEDs, just to demonstrate the efficiency of the circuit, if all pulses sent by the remote control will be counted by the IC 4017 and thus turn certain LEDs.
Materials Used:
- 1 Receiver 4021.
- 1 2N3906 Transistor.
- 1 10uF 16V Electrolytic Capacitor.
- 1 220K Ohm resistor 1 / 2 Watt.
- 1 CD4017 CMOS integrated circuit.
- 3 100nF Ceramic Capacitors.
- 5 Ohm Resistor 330R 1 / 2 Watt.
- 5 LED's.
The operation is very simple at the receiver which is a 38KHz signal demodulator. Enter the remote control signal is then amplified by the transistor, is then sent to a CMOS counter 4017, which alternated between two states only, in this example we put more than two LEDs, just to demonstrate the efficiency of the circuit, if all pulses sent by the remote control will be counted by the IC 4017 and thus turn certain LEDs.
Materials Used:
- 1 Receiver 4021.
- 1 2N3906 Transistor.
- 1 10uF 16V Electrolytic Capacitor.
- 1 220K Ohm resistor 1 / 2 Watt.
- 1 CD4017 CMOS integrated circuit.
- 3 100nF Ceramic Capacitors.
- 5 Ohm Resistor 330R 1 / 2 Watt.
- 5 LED's.
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