Wireless BBQ thermometer (433 MHz)
I will show you how to build a wireless 433 MHz BBQ thermometer with alert function and graphical display of the temperature curve.
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HC-12 Radio Module
The HC-12 radio module is easy to handle and has a long range. I’ll show you how it works, how you make settings, and how you use it legally compliant (in Germany).
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Radio rain warning system in a lunch box
A rain warning system that switches an alarm siren connected to a radio socket is presented in this post. Also: how to build the actual sensor yourself.
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Own radio protocols
How to develop your own radio protocols for 433 MHz using Arduino and Co without libraries. Two concepts are introduced.
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Radio sockets and hand transmitters
How to use radio sockets and hand transmitters using Arduino. The RCSwitch library is used. In addition: Build hand transmitters by yourself.
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433 MHz radio with Arduino
How to realize a simple 433 Mhz radio link with an Arduino, how to set up the RadioHead library and a small receiver module test.
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