Computer Serial Port interface


Posted on Dec 25, 2012

Here is an inexpensive way to get slow-moving analog data directly into a spreadsheet on your computer! A simple circuit connects to a serial port and a short Qbasic program gathers and saves 12 bit data to a file. A spreadsheet automatically retrieves the file and displays the data in real time. Once the data is in the spreadsheet, the full power and flexibility of the office suite is available. A new Qbasic program interfaces to the data taker. It reads the voltage via a serial port and saves the data to a file in the form of an HTML single column table. Run qbasic.exe to start basic then run the data taking program from within qbasic. Ah, the good old days!


Computer Serial Port interface
Click here to download the full size of the above Circuit.

Note: In order to run or edit the basic program, qbasic.exe is required but your machine may not have it installed. If not, you will need to copy it from your Windows install disk. Look for qbasic.exe in a directory with a name like "oldmsdos" and drag it




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

RF Dummy load
280 Watt MOSFET Power Amplifier
Charger circuit equipped with a regulator circuit output voltage Schematic Diagram
digital thermometer schematics
Simple Siren
Digital Main Voltage Indicator
Simple PWM inverter circuit diagram using PWM chip SG3524
GSM Remote Control Temperature Control Schematic
Circuit explanation for Ultrasonic Range Meter
Rapid control circuit of a stepping motor



Top