I use my AE ADAMS PGL scale for data logging weight loss of items already, using the software that comes with the scale. But I want to add additional sensors (temp, humidity) and want to data log everything into one location, all at the same time. I would also like to be able to log straight into Excel.
First, I would like to know how to connect scale that has an RS-232 output and how to capture the data coming out of the scale with an Arduino. I do not know if the data coming out of the scale is usable or if it is encrypted. How would I test for this?
I've seen others make or hack other scales and load cells. I would like to avoid hacking the scale. I would build rather build my own scale if all else fails.
Scale I already have: AE ADAMS PGL 001001, Bi-Directional RS-232 (9-pin) to USB Cable using a Prolific Driver http://www.adamequipment.com/am/balances/179