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Water evaporation reduces water volume inside a marine aquarium, affecting the salinity. This guide will walk through the build process of a water level controller (also called as auto top off system) that employs a water level sensor to detect water evaporation and then turn on/off water pump to add fresh water. This guide builds upon the power controller guide.
A different take on the beginning maker's second project (a clock being the first, of course). We added a motion detector to activate the fan when you're soldering and a USB reading light to eliminate the shadows. The unit employs a USB-rechargeable lithium-polymer battery and provides a separate USB port for the lamp. This solder fume extractor fits into an off-the-shelf enclosure; 3D printing isn't required. Drilling and cutting the enclosure requires some intermediate fabrication skills, but a layout and drilling template is provided to make it easier to prepare the plastic case.
This project takes an existing tool — the Hakko FX-901 cordless soldering iron — and adds USB charging and a beefy Lithium Ion battery inside a 3D-printed pack. I keep this little iron around for cosplay electronics emergencies, and adding USB charging means there’s less to pack…it uses the same phone charger and USB cable I’m already carrying.
Kung Fu video games are only as good as the controllers used to interact with them. One Finger Death Punch (OFDP) for Steam on the PC is one of those games that's OK to play with a mouse or an XBox controller, but with Wii Nunchuks the fun meter is maxed out! This project shows how you can transform Wii Nunchuks into custom nunchuck controllers for the OFDP video game on a PC using a Nunchucky adapter and Pro Trinket creating what we call the iTapStick!