Tag: 12v

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Smart-Greenhouse

I’m working on my DIY Smart Greenhouse …

  • Automated heater control, ? check
  • Automated ventilation control, ? check
  • Remote monitoring and configuration, ? check

 

Now that the greenhouse has a comfortably controlled atmosphere, it is time to move the tomatoes and chillies outside and into their new smart home. I prepared the earth and filled the pots, now it is time that the first plants follow.

 

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12V to USB Charging Converter

After the USB charging converter for my headlight battery packs worked really well last weekend (I got two full charges from one battery pack), I decided to quickly implement a simple 12V to USB charging hack I had in mind for quite some time.

On one of the recent hikes between huts I realised that some of the huts in Norway have solar panel powered 12V power supply. I’ve had a spare car-cigarette-lighter to USB adapter for quite some time and decided to replace the plug with generic crocodile clamps which are more versatile. With these new contacts, I can now attach to any 12V source to recharge USB appliances. For a little protection, I secured the leads with hot glue and covered the circuit board with a bit of yellow shrink tube.

12V to USB Charging Adapter