Let me show you how to build a LED string light inside a bottle which has a little twist to it! You will find the full article with videos and detailed pictures here. Let’s begin with a parts list: One end stop micro switch One TP4056 1S Lipo charge and output controller One LED series resistor One LED string light […]
Rechargable LED Bottle Light
USB LED indicator Power Bank from Laptop Battery
A situation many can relate to: an empty smartphone battery and no outlet around! That’s exactly why I recycled an old laptop battery into an USB power bank. Follow the link for the full article with close ups of the electronics and insights into the building process. This article will show you the basic powerbank circuit consisting of Lithium cell […]
Automated Firecracker Slingshot
Who doesn’t like celebrating new years eve with firecrackers?! But no more numb thumbs from fumbling around with a silly lighter in the cold – the automated firecracker slingshot comes to help! Click here for more. This was a project born out of a long afternoon, spare parts and the will to build something useless but fun: The feeder on […]
Simple Rotating Plate
Sometimes you would need a simple rotating plate for various applications but you don’t want to install a lot of sensors and transistors. Well, here’s a simple solution! With this rotating disk you can decide if you want to rotate full 360° back and forth or any other angle! Read more for the complete article!This post was sponsored by Farnell Electronics. […]
Simple 2000 Volts Transformer – Electrostatic Sticky Notes
In this post I will show you how to build a nice and useful transformer on your own! Best thing it’s not expensive at all! If you don’t know what a transformer is, look it up: Transformer. You can use it to charge a capacitor of your coilgun or to shock your friends! You will find the full tutorial including picstures […]
Electric Bycicle
Since public transportation is very expensive in Munich ( about 100€/month ) and driving a car is not an option due to traffic jams I decided to test something on the cheap: This is my electric bycicle! Its driven by a 300W electric washing machine motor and runs at an Voltage of 24 Volts. According to the manufaturer it spins […]