Technocrafts - Data Acquisition Card

Technocrafts Data Acquisition Card (TDAC) is a computer controlled, 10-bit Data Acquisition System which is based on one of most powerful Microcontroller Microchip PIC18Fxxx.

Technocrafts Data Acquisition Card (TDAC) is unique low cost built around Microchip PIC18 series microcontrollers. It contains an 8 bit bidirectional Digital I/O port, 10 bit, 8 channel A/D converter and a 6 bit, 4 channel output D/A converter. It is perfect for quickly controlling any inputs and outputs on your system. Use the Digital I/O to sense switch closures with the help from the built-in weak pull-ups, 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 over an RS232 link.

Here is a sample Data Acquisition System application. PC side software using Serial Port to control the Data Acquisition card hardware. The application read and plotted the outside temperature from two temperature sensor on different graphical meters and on a grpah.

TDAC TYPICAL PERFORMANCE

Digital I/O ports........................................... 8 bit
A/D Conversion Channels........................... 8
Resolution................................................... 10 bits (5v=1023)
Input Range................................................. 0-5Volts
D/A Conversion Channels.......................... 4
Resolution................................................... 6 bits
Output Range.............................................. 0-5 volts
PC interfacing via 9600 Baud RS232 connection.
Power Source........................................... external 12 volt battery