Hello,
I am a working on utilizing your OpenScale for a 24/7 digital scale for monitoring a display shelf on accurately send data regarding the weight of its contents over time.
My current setup includes the following:
1 - SparkFun OpenScale (SEN-13261) Firmware v1.2
4 - 50Kg Load Sensors (SEN-10245)
Please see attached pictures for configurations.
After following the guide at https://learn.sparkfun.com/tutorials/op … okup-guide.
I was able to tare and calibrate the scale with accuracy (including creep calibration 30+ min, tare, 30+ min calibration).
However, upon adding and removing weights from the scale I am noticing that the registered weight on the scale becomes more inaccurate. Also if an item is dropped onto the scale, and levels out, the weight that is displayed is not correct and can be off by over 200% of the actual weight. Even further, when removing all items from the scale the output value will not be at or close to zero. And continues to be off by larger values over time.
My question is:
What could be causing these miscalculations?
Is this because the Load Sensors are not designed for this application? Should we be using other sensors?
Is there a problem with the hardware setup? Do I need to invest in another board on top of the current setup? Is there a problem with the platform?
Is this a known issue, vibrations causing misreadings, etc.?
Or is there another method that we can follow to increase consistency?
I look forward to hearing from everyone and their opinions!