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Explore practical guides and explainers covering Home Assistant, ESP32, Zigbee, LoRa, MeshCore and water tank monitoring.

  • Blog

mmWave Sensors: What They Are and How to Use Them with ESP32

If you’ve ever had lights turn off while you’re sitting…

Read MoremmWave Sensors: What They Are and How to Use Them with ESP32
ESP32 C3 variants sitting side by side, desktop screen with code in the background
  • Blog

ESP32-C3 Beginner’s Guide for Home Projects

The ESP32-C3 has quietly become one of the best choices…

Read MoreESP32-C3 Beginner’s Guide for Home Projects
ESP32 Development Board in deep sleep mode
  • Blog

ESP32 Deep Sleep Explained: How to Get Real Battery Life

If you’ve ever built a battery powered ESP32 sensor, you’ve…

Read MoreESP32 Deep Sleep Explained: How to Get Real Battery Life
  • Blog

How to Power DIY Outdoor Sensors: USB, Batteries or Solar?

When you build DIY outdoor sensors – tank level monitors,…

Read MoreHow to Power DIY Outdoor Sensors: USB, Batteries or Solar?
Laptop in centre of image sitting ona wooden desk surrounded by various tools and electronic devices. Laptop displays text reading ESPHome with a code block underneath it.
  • Blog

What Is ESPHome? How It Works with ESP32 and Home Assistant

ESPHome is an open-source firmware generator and configuration system for…

Read MoreWhat Is ESPHome? How It Works with ESP32 and Home Assistant
ESP32-C6 surrounded by components and wiring, top down
  • Blog

ESP32-C6: A Practical Guide for DIY Smart Home Projects

The ESP32-C6 is one of the newer members of the…

Read MoreESP32-C6: A Practical Guide for DIY Smart Home Projects
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J-Rat Techworks is my little home lab on the internet.
I build and share DIY electronics, ESP32 projects and home-automation ideas, with full code and build logs so you can copy or remix them.

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