ESP-NOW

With ESP-NOW you can easily send messages of up to 250 bytes between ESP32 and/or ESP8266 boards. A step-by-step introduction.

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WiFi BBQ thermometer

I will show you how to build a WiFi BBQ thermometer with a temperature sensor, an ESP32 board and a few other components.

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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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Using IFTTT and Webhooks with the ESP8266

You want to be informed about out-of-control sensor readings on your smartphone (free of charge)? No problem with IFTTT (if this then that). I’ll show you step by step how to do this and how you track things online.

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