Hello! i need an IR transmitter and receiver circuit with a rellay at the out put.i need the relay to get 'on' and makes the other circuit works when i press the putton of the transmitter. when i will press back the button i want the rellay to get 'off'.
Please if you know something , help me.
Thanks anyway!!!
u can build a very simple remote using 2 555 IC's (moudulator and freq generator at 38 Khz )
At the other end u can use a TSOP 1738 ( Ir Demodulator ) and 4017 for flip flop should provide good range and detection :?
An Ir transmitter is not all that hard to build. Just connect a infa-red led to a battery with a resistor arranged in series so as not to destroy the led and a switch. Then, connect a infa-red reciever to a battery and resistor in series with any output you like (motor, led,solenoid).When the switch is pressed the output should come on.