I'm looking for a RF circuit that could transmit a logic 1 to receiver that then would activate a relay. The range between the trans. and receiv. can be about 3-10ft. Thanks for your help.
The cheapest thing you can do is use an AM MW band receiver tuned to an empty frequency and an oscillator with a wire as the transmitter. Have a tone detector at the receiver output and turn the oscillator on and off at the tone frequency.
you can use combination of HT11 by holtek chip as transmiter /reciver and transmiters from telecontrole or dadiometrix
it is under 10$ and you do not need to know nothing about radio
The cheapest thing you can do is use an AM MW band receiver tuned to an empty frequency and an oscillator with a wire as the transmitter. Have a tone detector at the receiver output and turn the oscillator on and off at the tone frequency.
I am also trying to implement a rf logic switch. Tone detector sujjested by u looks good for my application. I want to use a 555 timer as a transmitter.
How can I actually stop the tone detector activateed from another source close to my transmitter's frequency
Are there any other ways to stop this
Thanks