Today, most telephone equipment use a DTMF receiver IC. One common DTMF receiver IC is the Motorola MT8870 that is widely used in electronic communications circuits. The MT8870 is an 18-pin IC. It is ...
[Colin] wanted a way to reliably control an Arduino via ham radio. One of the easiest methods of automated radio control makes use of Dual-Tone Multi-Frequency signalling. To those who aren’t into ...
Developing a system to interface the telephone line with a microcontroller is the main purpose of this project which will involve the of DTMF tones. The device was based on the ATmega8 microcontroller ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback