PIC Based – Data Acquisition System
Why pay hundreds for a commercial Data Acquisition System when you can build the PIC DAS for less than $50.00? The PIC DAS is built around a Microchip PIC16C63A microcontroller and contains an 8 bit bidirectional Digital I/O port, 12 bit, 8 channel A/D converter and a 12 bit, 4 channel output D/A converter. It is perfect for quickly controlling any project on your workbench! Use the Digital I/O to sense switch closures with the help from the built-in weak pullups, control OPAMP’s, power supplies and the like with the built-in D/A converters.
Measure temperature or sense voltage or current with the built-in A/D converter. The real usefulness of this system is that it has a known simple to use interface that uses real ASCII commands over an RS232 link. This method of control saves programming time that would otherwise be wasted controlling the test setup, instead of actually doing the test.
PIC Based – Data Acquisition System: [Link]
January 27th, 2010 at 2:02 am
I need some help developing a system. It has to sense a switch closing at a remote site, “call home” to a standard computer, drop off the data into Excel or some other type database. The data string must contain the location unique identifer. A PIC controller to store the main phone number, a UART/modem built in to connect or a phone line. Needs to be real simple and real cheap, I need to build many of these for a project. If further questions, write to Jim @ sbbn@aol.com Thanks or just can’t do it.. is OK