Arduino MKR GSM 1400 is the latest of Arduino’s MKR series which combines MKR Zero and an inbuilt GSM module that support 3G and cellular Connectivity. In this tutorial, I will show you how you can make a robot that can be controlled using DTMF tones. What is DTMF? DTMF or Dual Tone Multi Frequency … Continue reading Arduino DTMF Controlled Robot MKR GSM 1400 Tutorial More