About this document
DTMF-Based Radio Remote Control Circuit by Libin Hari is a document available to read on EtoBox.
This circuit uses radio frequency signals and DTMF tones to remotely control electrical appliances from different areas within a house. The remote control unit contains a DTMF generator and FM transmitter circuit to send the DTMF tones, which are received by an FM receiver and decoded. The decoded tones are converted to a binary code that switches relays on and off, controlling up to four appliances. The design differs from infrared remote controls by using radio signals, allowing control from anywhere line
- Author
- Libin Hari
- Language
- EN