Pollie Barden edited Stephen Schaum’s footage of a recent arduino workshop I held at ITP. Here’s the link to the footage.
Thanks to Stephen and Pollie for their work.
BatchPCB and OpenCircuits
Sparkfun has started two new spin-off sites recently, BatchPCB and OpenCircuits.
BatchPCB is a site for getting printed circuit boards printed cheaply: $2.50 per square inch. Send them a Gerber file and they send you your boards. It’s slower than other PCB fab sites, because they manufacture them in batches, but it’s one of the cheapest I’ve seen.
OpenCircuits is an open wiki of circuits for projects. So far most of the circuits there are parts from the Sparkfun inventory, but others are undoubtedly on their way. It’s open to contributions as well.
Technorati Tags: electronics, PCB
USB Programming for the PIC
Some good notes on USB Programming for the PIC, from Daniel Hirschmann, tested by Amit Pitaru. Jeff Gray’s Del.icio.us links on USB are good too.
Technorati Tags: electronics, PIC, programming
Serial Communication in OSX Terminal
knew it had to be possible to view serial data in the OSX terminal window, but I’m not enough of a unix geek to figure it out. Finally, a little googling told me what I needed to know. Here’s how to read and send serial data from the terminal in OSX.
Technorati Tags: networked objects, networks, OSX, serial
DC Motor Control
This program controls a DC motor attached to the microcontroller via a transistor or relay. Adaptation to make the motor speed change by Ryan Holsopple.
A simple version is at the bottom of the page
Sending a two-byte value serially
This code reads a 10-bit analog value, splits it into two bytes, and sends it out serially.
Written in Arduino, should work for both Arduino and Wiring.
Digital Input controlling Digital output
This example was written to control a motor from a touch sensor. More generically, it turns on a digital output based on the state of a digital input.
Servo motor control in Arduino
This example controls a servomotor. It moves a servomotor based on the value of an analog input. Thanks to Casey Reas for cleaning up the code. Thanks to Henryk Marstrander for the formula.
MIDI player in Wiring/Arduino
Ryan Holsopple got a basic MIDI out working using an Arduino board. Inspired, I borrowed from his example and re-wrote my MIDI player to work on an Arduino board.
Maxbotix Ultrasonic Sensor
The Maxbotix ultrasonic sensor looks like an interesting model, in that it’s smaller than most ultrasonics, and has a number of different interfaces: serial, PWM, and analog.
Technorati Tags: electronics, sensors