I’m working on an Arduino clone. The Arduino is essentially an ATMEGA328P development board with a bootloader pre-loaded. There are a lot of custom macros built into the programming interface that make it really easy to use, and even easy to build some powerful applications. Arduinos have taken off and can be found everywhere, doing
Arduino Uno – Programming With A Serial Port Continue Reading
I’ve found several sites and posts explaining how to use a quadrature encoder with an Arduino, but wasn’t completely satisfied with any of the methods used. Perhaps part of the problem is with the encoder I’m using: it’s part #COM-09117 at Sparkfun.com. This encoder has twelve detents per rotation, and each detent covers one complete
Using a quadrature encoder (rotary switch) with Arduino Continue Reading
My kids are learning Morse code this summer, so I threw together this little circuit to help them learn. And to make it more fun… It uses an ATtiny85 ($2.26 at digikey.com) to drive a piezo beeper (≈ $3.50 at Radio Shack.) The ATtiny85 takes 5.5V max, so I built the circuit on a piece
Morse-Code Trainer Using Arduino Continue Reading
In this write-up, I’ll show how to create a value in Processing and then send this value over the serial port to the Arduino. In the example I’m setting values of LEDs making them brighter or dimmed but this example can be extended to control other items – which I plan to do later! Basically
Using Processing to Send Values using the Serial Port to Arduino Continue Reading
If you want to RESET Arduino from the beginning without manually pressing the RESET button, there are a few ways. Here are two ways, using minimal wiring / circuitry. Step 1: Using 1 wire connected to the RESET pin 1. electronically, using only 1 wire connecting an OUTPUT pin (12 in this example) to the
Two ways to reset arduino in software Continue Reading
Quit pulling your hair out over incorrect passwords. Using an Arduino Leonardo and Adafruit’s NFC shield, you can unlock your computer with an NFC card. The Arduino reads the NFC card’s unique identifier and once it receives the correct one, it uses the Arduino Leonardo’s keyboard emulation feature to type a password. Step 1: Parts
NFC Computer Unlocker Continue Reading
Connecting the Switch To connect the switch to the Arduino, you will need the switch, two jumper wires, and a 10kΩ (brown-black-orange) resistor. Once you have all the required parts, you will need to wire the switch to the Arduino using the breadboard. NOTE: The virtual board may be slightly different from the physical one.
Making a program start using a switch Continue Reading
This tutorial introduces programming for AVR microcontrollers. It uses the ATmega328p found on Arduino boards, but works with straight AVR C and a bare microcontroller. It covers the basic information you need to get started, whether or not you’ve used Arduino or other microcontrollers previously. Why would you want to learn AVR programming (instead of,
AVR Programming Tutorial Continue Reading
My sensors have not been functioning too well with my computer, as every time I try to connect the hello.light or hello.mic boards and run python through my terminal, I either get the error “resource busy”, or my computer completely freezes! Therefore, I decided to try and program some sensors via an Arduino board and
Interface and Application Programming Continue Reading
Pan/Tilt Motion System for Control Education Ricardo G. Sanfelice, University of Arizona Project supported by Mathworks Website developed by Colin Lasharr, University of Arizona Contents Introduction Instructions for Building the System Installation Instructions The Arduino Board Simulink Initial Parameter Identification System Identification for Zenith Component System Identification for Azimuth Component Running An Experiment Tracking
Pan/Tilt Motion System for Control Education Continue Reading
