Hi FYI A lot has changed from start of tread, read all if you struggle with load cell and LoRa, forum members has given me a lot of help, thanks!!! UPDATE Load cells 4x50 kg I have found this one, with datasheet, I dont have price but I will buy 40 pcs, https://www.galoce.com/Products/GML670-half-…

[image] Modesty: I'm using this 150 kg load cell. Do you have a link to the data sheet and application notes? How did you mount it?

Hi DrDiettrich, thanks for answer. LoadCell data further down. Tread about Load cell connection here Test resistors: [image] Data for load cell Brand Name: XNQJALYCY Origin: Mainland China Output: Switching Transducer Theory: Resistance Sensor Model Number: load cel Type: Biosensoris_cust…

I mean the direction of force. The many holes suggest to me a pull transducer, not push. [image] Modesty: connected it to 3.3v The data sheet says 5V to 12V

[image] Modesty: I maybe need to buy one from Sparkfun? Yes, because most green ones need 5v, which is no good for 3.3 ESPs.

Hi again DrDiettrich The data sheet says 5V to 12V This was a surprise for me.... check before buy!!! Do you know how I can feed it with correct volt? What is the simplest way? Don't completely understand your question: The many holes suggest to me a pull transducer, not push. The load ce…

[image] DrDiettrich: The data sheet says 5V to 12V I'd treat the 5v as a recommended minimum, not an absolute minimum. The load cell can certainly be used with the 4.3 v excitation voltage of the HX711. It will output 4.3 mV at full scale instead of 5 mV, so there will be less meat for the …

[image] Modesty: Board I use is a ESP8266 Only Sparkfun HX711 boards can be used with 3.3volt-logic ESP8266 boards directly. The board pictured is 5volt-logic only. 3.3volt-logic HX711 boards have a 5volt supply for the load cell and a 3.3volt supply for the logic. You could modify that bo…

I've been playing with a similar setup for some time now. I'm using a Pro Mini at 5V and a different (than yours) no name HX-711 board. My code (below) uses no library (for the HX-711) it reads out counts. First your %age calculations are misleading you. You have a 150 kg load cell so your error…

[image] Modesty: I'm using this 150 kg load cell. I thought for the most part everything was covered in your last two threads. You have a 150 kg load cell and you are loading it with a 1.0 kg test weight. That's about 0.66% of full scale for the cell. Not very much. Keep something else in mi…

Drifting Load cell in a stable environment

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DaveEvans November 1, 2022, 3:43pm 5

Yes, because most green ones need 5v, which is no good for 3.3 ESPs.

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Drifting Load cell in a stable environment

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