Shift registers: add more digital I/O to your Arduino
Shift registers are useful chips that can add more outputs or inputs to your micro-controller. The 74HC595, for example, provides…
An Arduino self-balancing robot: working prototype
I spent some time reading on accelerometers, gyros, sensor fusion, PID, optimized PWM motor control. I tinkered with the components…
Arduino Uno and the InvenSense MPU6050 6DOF IMU
A while back I bought the InvenSense MPU-6050 sensor in a “GY-521” breakout board from eBay. For a long time…
28BYJ-48 Stepper Motor with ULN2003 driver and Arduino Uno
First, lets see the little steppers in action! Our main character, StepperBot, is “instructed” to move in a square path…
Using Bluetooth and an Android phone for debugging Arduino sketches
I bought a Bluetooth module a few months ago and never really tried to use it because in my mind…
Arduino robot controlled from an Android phone via Bluetooth
Project overview This is a differential steering robot that can be controlled from an Android phone via Bluetooth. The robot’s…
Simple Android apps with App Inventor
App Inventor provides a fast and easy way to build simple apps for Android phones and tablets. It is targeted…
“Betamax” Quadcopter test flight video
Today I tested my first ever quadcopter, built as part of a recent workshop at the Vancouver Hackspace (VHS) . My…