Category Archives: Projects

Telecom Shield for Arduino

The Telecom Shield connects an Arduino Mega to an analog phone line and allows audio transmission and reception as well as built-in DTMF tone decoding using the MT8870D decoder chip. I developedĀ the Telecom Shield for Kite and Rocket Research.

This was my first time soldering surface-mount components so it got a bit messy, but by the endĀ I knew what I was doing.

Apologies for potato image quality.