The Advanced Google Sheets Features You Should Be Using but Probably Aren’t

This Google Sheets Advanced Tutorial explains IF, VLOOKUP, INDEX MATCH, and pivot tables, plus macros and Apps Script for ...

Inside the 2-Year Project to Build a 6-DOF Robotic Arm From the Ground Up

This DIY 6-DOF robot arm project details a two-year build cycle using 3D printed parts, custom electronics, and over 5,000 lines of code.
Hackaday

bar code

Recently [mit41301] wondered about increasing the data capacity of QR codes, and was able to successfully triple the number of bits using color. He chose the new rectangular micro QR code (rMQR) ...
GitHub

Arduino Line-Following Robot

This repository contains the full source code, schematics, and design documentation for a classic four-wheeled Line-Following Robot based on the Arduino Uno microcontroller. This project is an ...