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ADS1232REF: Reading output of ADS1232REF by a different microcontroller

Jonathan Akafua
Prodigy 20 points
Part Number: ADS1232REF
Other Parts Discussed in Thread: ADS1232

Hi

I recently bought an ADS1232REF demokit.

I want to read the output of the load cell which is displayed on the LCD from the computer. With that reading I want to send it to a different micro-controller. How do I go about it?

Also, I will like to know if the reference board can be used for dynamic weight measurement. Will using a digital load cell for the board also work as efficiently as a normal load cell?

Thanks, Jonathan.

  • 0
    TI__Guru** 113765 points

    Hi Jonathan,

    Welcome to the forum! The ADS1232REF is a demonstration board that can be used to evaluate the ADS1232.  All supporting code was developed for that purpose.  As far as the reference design it was meant to be a standalone weigh scale.  So it is not an end product, but rather a design to help you achieve your end product.  The mode switch determines the operation.  When in the Analysis position the output code and communication can be transmitted to a PC, and does not send scale weight information but rather ADS1232 output code.  In Scale mode, the ADS1232REF will strictly act as a standalone scale but will not communicate to the PC.

    The ADS1232 measures the analog voltage output from a load cell.  As strain is applied to the load cell the output of the load cell changes and the ADS1232 will output the measured code accordingly at either 10sps or 80sps output data rate.  It does not take a digital input.

    Using the ADS1232REF as a part of a project design, you can communicate to the ADS1232REF using a virtual USB COM port and communicating through a terminal console program (like HyperTerminal) while in Analysis mode.  All information regarding communication is in Section 5 of the ADS1232REF user's guide.

    http://www.ti.com/lit/ug/sbau120b/sbau120b.pdf

    Sending the output value to another micro might be a bit complicated and outside the realm of support for the product.  You would need to write an application that would open the COM port and communicate by reading data, processing, and transferring to the other micro.

    Best regards,

    Bob B