10 Fluid Level Sensors and how to use them (Arduino, ESP32, ESP8266)

Measuring levels of liquids is a common problem. Where I live, it is probably more the water level of the

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Unknown ESP32 saving modes: Light Sleep, Clock Reduction, Modem Sleep, Hibernation, and a few tricks

We all know that we send our ESP32s to deep sleep to save energy. But do you know the other

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Are Supercapacitors the better Batteries?

Often viewers ask in the comments: Why do you still use batteries and not supercapacitors for your projects? Good question.

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How to Build or Migrate Sensors and Gateways on TTN LoRaWAN V3

LoRa and LoRaWAN are remarkable technologies, they have a long-range and low power consumption and therefore are ideal for our

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What is in my Mailbag?

Mailbag with many interesting things from very cheap to very expensive. I am a proud Patreon of @GreatScott!, @ElectroBOOM ,

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5 best power solutions for small projects

Are you interested in my way of powering small projects? After many discussions and evaluations, I created a favorite list

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