Remote controls such as those used for your TV, DVD/Blu-ray or Cable box use infrared transmitters and receivers. The transmitter is basically nothing more than a flashlight that emits a light beam at a frequency that is lower than the human eye can detect.
An Alternative For Expensive Adafruit Feather M0 with RFM95 LoRa Radio. LoRa32u4
Do you always slack off on your computer and worry about getting busted? Not anymore because today we are going to make a Tripwire which automatically minimizes your tabs when someone walks by.
What is cellular IoT? It’s a way of connecting physical things (like sensors) to the internet using basically the same stuff behind your smartphone. Instead of needing to create a…