Creative uses of Power Tool Batteries for Mobile Projects

Most of us own at least one battery-operated power tool, including a charger. What if we could use their batteries also for our electronics projects? Let’s have a closer look! I am a proud Patreon of ...

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 possibilities to save energy like light sleep and clock reduction? And what about modem sleep or hibernation...

Are LiFePo4 Batteries better? How to Use them For Small Projects

For years we have used rechargeable Li-Ion batteries for our projects. They are widely available, but are they still the best solution? Let’s have a closer look at the newer kid in the block, the LiFe...

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 sensor projects. Today I will show you how to build a LoRaWAN sensor and ...

Simple Trick to protect your Raspberry SD card from Crashing

SD cards in Raspberry Pi computers wear out and die after a while because they are not made for computer usage, and many write cycles. In addition, the SD cards can become corrupted if the Pi loses po...

How Can You Build your Professional looking Home Server?

Grafana, InfluxDB, and Node-Red on a Raspberry Pi form a dream team for the visualization of IOT data. The setup is not easy, but this is what we will do together. Today We will install everything ...