In this simple project I want to build a box that allows my children to enter the house with a fingerprint sensor. At the same time this project doubles as a prototype for video doorbell with fingerprint sensor that I might want to build later. Prerequisites In my case we are owning a Nuki door lock already: So basically a small box on the inside of my front door that turns the door key when told so via Bluetooth.

I broke the hotend of my Genius Pro - and decided to exchange the entire extruder with the “all metal” one. This is a short overview. How it started Some month ago I learned about the new arachne perimeter generator. It is now possible to generate wider or thinner perimeter as it is needed. And I wondered: Will this allow me to print (almost) same quality prints with bigger nozzle sizes?

Developing Arduino boards is actually easier than one might think. You plug the development board onto your computer’s USB, fire up Arduino IDE, and with just a few key strokes and clicks you can upload a first sketch to your development board. But what do you do if you just finished a more complex project and your development board is hard to reach in a door bell, water tank or robot you built?