Details

Decodes DTMF audio signal to 4 bit binary TTL level output with LED indication. Suitable for use with microcontroller applications for implementing various applications like remote monitoring or remote control.

• Decodes DTMF as 4 bit binary
• TTL level output for direct connection to microcontrollers 
• Low power 5V DC operation 
• LED indication of outputs 
• Simple to use 
• Based on excellent MT8870 IC 

Applications

•  Remote Control systems 
• Caller ID applications 
• FM receiver based remote control 
• Remote control using Mobile phone