Thursday, October 13, 2011
12/2/2011 Update! We are now reading data from the micrometer, and calculating bin numbers for gear sorting and pump builds. We take 3 samples of a gear, and reject the gear if there is too much variation between the samples.
The Digimatic SPC protocol is a communications protocol developed by Mitutoyu, the big guns in Calipers, Micrometers, Dial Indicators, Scales and more. These devices have a data port that allows you to communicate with a microprocessor or microcontroller, for data logging and other measuring applications.
Mitutoyo 05CZA662, Digimatic Cable, 40", With Data Switch for Coolant Proof Micrometers
Code, diagrams, and specs. - http://www.green-trust.org/digimatic/
Instructable - http://www.instructables.com/id/Interfacing-a-Digital-Micrometer-to-a-Microcontrol/
Interface Boards - http://arduinotronics.blogspot.com/2012/06/arduino-to-mitutoyo-interface.html
Posted by Steve Spence at 9:01 PM
Dennis Ritchie, best known as the creator of the C programming language and co-creator of the UNIX operating system, has died at the age of 70 after a long, unspecified, illness. News of his death came from past collaborator, Rob Pike, in a message on Google+ which read: "I trust there are people here who will appreciate the reach of his contributions and mourn his passing appropriately. He was a quiet and mostly private man, but he was also my friend, colleague, and collaborator, and the world has lost a truly great mind."http://www.h-online.com/open/news/item/Dennis-Ritchie-creator-of-C-and-more-has-died-1360480.html
Posted by Steve Spence at 8:16 PM
Wednesday, October 12, 2011
Our Arduino Micrometer Project is off and running. We have the speech module up and running, and now the VGA output module. It's a simple serial interface and only uses two i/o ports. We are using the PICASO QVGA/VGA/WVGA Graphics Controller from Sparkfun - http://www.sparkfun.com/products/10329
The µVGA-II(SGC) is a compact & cost effective drop in embedded graphics engine that will deliver stand-alone functionality to your project. The simple to use embedded commands not only control background color but can produce text in a variety of sizes as well as draw shapes in 256 colors while freeing up the host processor from processor hungry screen control functions. This means a simple micro-controller with a standard serial interface can drive the module with ease.
Posted by Steve Spence at 7:13 PM