# Load Cells - Values drifting **URL:** \ **Category:** Arduino\ **Created:** [2 July 2019 09:57 UTC](https://forum.core-electronics.com.au/t/load-cells-values-drifting/5746 "2019-07-02T09:57:08Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![FERNANDO88685](https://avatars.discourse-cdn.com/v4/letter/f/77aa72/32.png) [@FERNANDO88685](https://forum.core-electronics.com.au/u/FERNANDO88685)\ **Post date:** [2 July 2019 09:57 UTC](https://forum.core-electronics.com.au/t/load-cells-values-drifting/5746/1 "2019-07-02T09:57:08Z")
Hi, My project consists of building a scale for measuring beer keg volumes. My hardware: 1x nodeMCU - ESP8266 - Arduino 1 x Load combinator bought in Core Electronics ([https://core-electronics.com.au/sparkfun-load-sensor-combinator-ver-1-1.html](https://core-electronics.com.au/sparkfun-load-sensor-combinator-ver-1-1.html)) 4 x Load cells and 1x HX711 bought in Ali Express ([https://www.aliexpress.com/item/32981802410.html?spm=2114.search0104.3.9.5f75b66d8nb0bB&ws\_ab\_test=searchweb0\_0%2Csearchweb201602\_8\_10065\_10130\_10068\_10547\_319\_317\_10548\_10696\_453\_10084\_454\_10083\_10618\_10307\_537\_536\_10131\_10132\_10133\_10059\_10884\_10887\_321\_322\_10103%2Csearchweb201603\_52%2CppcSwitch\_0&algo\_expid=43ab9160-5848-4563-9e2f-bc0e395c85a2-1&algo\_pvid=43ab9160-5848-4563-9e2f-bc0e395c85a2&transAbTest=ae803\_5](https://www.aliexpress.com/item/32981802410.html?spm=2114.search0104.3.9.5f75b66d8nb0bB&ws_ab_test=searchweb0_0%2Csearchweb201602_8_10065_10130_10068_10547_319_317_10548_10696_453_10084_454_10083_10618_10307_537_536_10131_10132_10133_10059_10884_10887_321_322_10103%2Csearchweb201603_52%2CppcSwitch_0&algo_expid=43ab9160-5848-4563-9e2f-bc0e395c85a2-1&algo_pvid=43ab9160-5848-4563-9e2f-bc0e395c85a2&transAbTest=ae803_5)) I have connected everything and the nodemcu is connected to my notebook. I am still building a prototype and the first issue that I a having is that the reading is drifting too much. I am able to calibrate the scale by setting the factor, but values get increasingly going up, sometimes down. Can you guys give me any clue on what is happening? Can I achieve a much more steady reading? Thank you so much! ---
**Author:** ![Wyvern](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/wyvern/32/2812_2.png) [@Wyvern](https://forum.core-electronics.com.au/u/Wyvern)\ **Post date:** [2 July 2019 13:07 UTC](https://forum.core-electronics.com.au/t/load-cells-values-drifting/5746/2 "2019-07-02T13:07:14Z")
Do you have a picture of how you mounted the cells? The scales I’ve seen with a load cell are pretty sturdy metal frames, and bathroom scales are nearly always glass as it’s the most elastic. Not bendy or springy- elastic. I’m guessing things are moving a touch from where they were setup hence the changing readings? ---
**Author:** ![FERNANDO88685](https://avatars.discourse-cdn.com/v4/letter/f/77aa72/32.png) [@FERNANDO88685](https://forum.core-electronics.com.au/u/FERNANDO88685)\ **Post date:** [3 July 2019 02:59 UTC](https://forum.core-electronics.com.au/t/load-cells-values-drifting/5746/3 "2019-07-03T02:59:18Z")
Yes. Load cells are just placed on the table and I am using a plywood over on top of them. Please see the pictures. ![IMG_20190703_105557](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/6/6a7fb27ace69656410b5adb6317642cf7888391a.jpeg) ![IMG_20190703_105647](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/9/963d98cf1aa6df467266fb4053d15be5e6da7caf.jpeg) Thanks for replying. ---
**Author:** ![Wyvern](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/wyvern/32/2812_2.png) [@Wyvern](https://forum.core-electronics.com.au/u/Wyvern)\ **Post date:** [3 July 2019 04:39 UTC](https://forum.core-electronics.com.au/t/load-cells-values-drifting/5746/4 "2019-07-03T04:39:53Z")
Just guessing, but I reckon your table could be flexing. Try putting a support under the table? ---
**Author:** ![FERNANDO88685](https://avatars.discourse-cdn.com/v4/letter/f/77aa72/32.png) [@FERNANDO88685](https://forum.core-electronics.com.au/u/FERNANDO88685)\ **Post date:** [3 July 2019 05:07 UTC](https://forum.core-electronics.com.au/t/load-cells-values-drifting/5746/5 "2019-07-03T05:07:33Z")
I will try. I let you know. Thanks. ---
**Author:** ![brian86770](https://avatars.discourse-cdn.com/v4/letter/b/c5a1d2/32.png) [@brian86770](https://forum.core-electronics.com.au/u/brian86770)\ **Post date:** [30 October 2020 23:54 UTC](https://forum.core-electronics.com.au/t/load-cells-values-drifting/5746/7 "2020-10-30T23:54:54Z")
try double the amount of sensors/cells…scales are hard to preset to “0” at any time…maybe try find a forum who actually deal with these type of setup you have…or places who make scales and see what they have to say… ---
**Author:** ![Bryce](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/bryce/32/3631_2.png) [@Bryce](https://forum.core-electronics.com.au/u/Bryce)\ **Post date:** [3 November 2020 01:40 UTC](https://forum.core-electronics.com.au/t/load-cells-values-drifting/5746/8 "2020-11-03T01:40:05Z")
Archived on 3 November 2020 01:40 UTC If you have further questions regarding this type of project please create a new forum post tutorial below. (Tutorial: [https://core-electronics.com.au/how-to-create-forum-topic](https://core-electronics.com.au/how-to-create-forum-topic) )