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J-Rat Techworks

Projects

  • Projects

How to Build a LoRa Water Tank Sensor for Home Assistant

Monitoring the water level in a rainwater tank seems like…

Read MoreHow to Build a LoRa Water Tank Sensor for Home Assistant
  • Projects

DIY LoRa Gateway for a Home Assistant Sensor Network

If you want to monitor things around your home, garden,…

Read MoreDIY LoRa Gateway for a Home Assistant Sensor Network
Desk with rainbow coloured LED lighting strip
  • Projects

I Built Hidden Smart LED Lighting for My Office Desk

My office has always been functional, but it never really…

Read MoreI Built Hidden Smart LED Lighting for My Office Desk
  • Projects

Using an E-Paper Display with an ESP32-C3: Text, MQTT Data and a Simple Logo

E-paper displays are a great option for small projects where…

Read MoreUsing an E-Paper Display with an ESP32-C3: Text, MQTT Data and a Simple Logo
Beige Air Quality Sensor, sitting on bench, nice plant background
  • Projects

DIY Air Quality Sensor for Home Assistant Using an ESP32-C5

Indoor air quality is one of those things you usually…

Read MoreDIY Air Quality Sensor for Home Assistant Using an ESP32-C5
Wide 16:9 hero image, clean flat-lay on a light neutral desk. In the centre, a small electronics starter setup: ESP32 development board, multimeter, soldering iron, breadboard with jumper wires, resistors, LEDs, wire cutters, heat shrink tubing, and a small plastic project box. Minimal, uncluttered layout. Soft natural lighting, modern and beginner-friendly. No text in image.
  • Projects

Top 10 IoT Projects for Beginners (That You Can Actually Build)

If you’re new to IoT, it’s easy to get stuck…

Read MoreTop 10 IoT Projects for Beginners (That You Can Actually Build)
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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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