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HX711 and Home Assistant #229

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epvdvalk opened this issue Sep 8, 2023 · 8 comments
Open

HX711 and Home Assistant #229

epvdvalk opened this issue Sep 8, 2023 · 8 comments

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@epvdvalk
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epvdvalk commented Sep 8, 2023

Hi, Thanks for the great software. I have made a scale using load cells and a HX711 amplifier. No issues with programming the CC2652 module and the integration is also ok. Saved a custom converter, also ok. Th thing is the calibration. My sclae factor switch is not available in HA/Z2M. What am I doing wrong here? See images:
afbeelding
HA HX711
@ptvoinfo
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ptvoinfo commented Sep 8, 2023

@epvdvalk Hi, I see the scale factor field in your Z2M. What is wrong, exactly?

@epvdvalk
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epvdvalk commented Sep 8, 2023 via email

@epvdvalk
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epvdvalk commented Sep 8, 2023 via email

ptvoinfo pushed a commit that referenced this issue Sep 15, 2023
[All chips] Values from DS18B20 was not displayed in Z2M in some cases.
0b9ea2e 
[CC2530] Removed the CCS811 sensor from the router firmware.
[All Chips] Fixed problem with reading MHZ19 data (#224).
[All Chips] Fixed problem with HX711 calibration in Z2M (#229).
[All chips] Now, you can configure parity and number of stop bits for UART.
[All chips] Added the new sensor type "UART sensor" for easier data processing from an external MCU.
[CC2652] Fixed an issue with toggling (flicking) of random real pins (even if they are not defined in a configuration) when there are virtual pins in the configuration.
[All chips] Other minor improvements and optimizations.
@epvdvalk
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epvdvalk commented Sep 22, 2023 •
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Hi, I finally got it working and calibrated the scale. I use the scale to measure the amount of salt in my water softener. Measured the salt weight and calibrated the scale. It started at 20 kg's but after a day it started drifting and after a week the scale shows -37kgs. How is this possible? Is there a fix for it?
scale

This is the graph for the last week.

graph

@epvdvalk
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bump

@ptvoinfo
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@epvdvalk Sorry, but I cannot repeat this problem in one-day test. Can something enable/disable the tare mode automatically?

@epvdvalk
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epvdvalk commented Nov 3, 2023

Hi, It is just not working as expected unfortunately. I have switched to a different type of load cell (the type you are using) but still there is no switch that enables the tare function unless I program a switch in the firmware.

@epvdvalk
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epvdvalk commented Nov 3, 2023

Can I add multiple HX711 modules to 1 CC2652P module?

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@ptvoinfo @epvdvalk