It is very easy to build an “SMS-controlled relay” with the help of a cheap GSM modem module and a small microcontroller board. Here, I’m using the SIM800L and Arduino Nano V3 to develop a nifty ...
Developers, makers and hobbyists looking for any 2G cellular Internet of Things development board with global connectivity without a “bloated back-end infrastructure”, may be interested in the new ...
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