Offset auto calibration proccess

[Dpineda1996]

Hi,

I am using the ADS1230 device developed by circuitar (https://www.circuitar.com/nanoshields/modules/load-cell/ ) to convert the measurements to weight from a load cell. Recently I discovered that by disconnecting and connecting back electrically to the source supply after some seconds, the stability of the system is even better than only reading and switching the SPI interface during the time (weeks).
As I am using the reference library for this converter (https://github.com/circuitar/Nanoshield_LoadCell) I have a question. What do I need to do in the library or example program ("ReadWeight") for what after each restarting the system doesn't go to the calibration function and just set the initial parameters (OFFSET...) previously saved and continues just reading the current weight normally as if it had not been restarted?.

Thank you so much for your attention and I will be looking forward to your answers.

Greetings,

Duvan.

[alexsartin]

Hi,

Try calling loadCell.begin(false); and comment below lines

Nanoshield_LoadCell/examples/ReadWeight/ReadWeight.ino

Lines 23 to 24 in 7340a87

	while (!loadCell.updated());
	loadCell.setZero();

in the example.

Maybe just the comment part is enough.

[Dpineda1996]

Hi,

Try calling loadCell.begin(false); and comment below lines

Nanoshield_LoadCell/examples/ReadWeight/ReadWeight.ino

Lines 23 to 24 in 7340a87

	while (!loadCell.updated());
	loadCell.setZero();

in the example.
Maybe just the comment part is enough.

Hi,

Thanks for your answer. I tested your idea but there is one issue more (it is not something significant), in my case, I am using a 10kg load cell 1mv/V, and always the measurements began 1100 gr upper than the real weight. Do you know to solve this (not only using Real weight - 1100)?.

Thanks.

[alexsartin]

I guess that's why you would calibrate the cell first. To remove this offset. But since the built-in offset feature is for zeroing the measure, if you always have this 1.1kg difference you could subtract it from the value read. Regards. Alex. On Jan 20, 2021, at 13:02, Duvan09 <[email protected]> wrote:  Hi, Try calling loadCell.begin(false); and comment below lines https://github.com/circuitar/Nanoshield_LoadCell/blob/7340a875b9268cfde2648584bfaa4f0aa7c0781c/examples/ReadWeight/ReadWeight.ino#L23-L24 in the example. Maybe just the comment part is enough. Hi, Thanks for your answer. I tested your idea but there is one issue more (it is not something significant), in my case, I am using a 10kg load cell 1mv/V, and always the measurements began 1100 gr upper than the real weight. Do you know to solve this (not only using Real weight - 1100)?. Thanks. — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.