How to make a DIY CNC Router using Arduino UNO and TB6600 Stepper Driver that has both a Spindle / Router and Laser Module to Engrave / Cut.
Learn how to design your own PCB Business Card using Autodesk Eagle and get it manufactured in a PCB Industry. Learn Gerber file creation.
An Arduino Drawing Machine / CNC Plotter / Drawbot that uses GRBL-servo firmware for G-code interpretation and CoreXY motion control.
How to convert a ( Brushless ) BLDC Motor ESC to Brushed Motor ESC to run a DC Motor using a Three Phase Rectifier.
How to make a Face Recognition based Door Lock using Raspberry Pi and OpenCV. This uses Principal component analysis (PCA) and Eigenfaces.