Weight sensor w/ nodemcu, HX711, load cells: Help! Can’t calibrate.

This page summarizes the projects mentioned and recommended in the original post on /r/esp8266

Our great sponsors
  • WorkOS - The modern identity platform for B2B SaaS
  • InfluxDB - Power Real-Time Data Analytics at Scale
  • SaaSHub - Software Alternatives and Reviews
  • HX711

    An Arduino library to interface the Avia Semiconductor HX711 24-Bit Analog-to-Digital Converter (ADC) for Weight Scales.

  • I'd try using the HX711 lib that Tasmota is using directly in a test program. If that works then you know it's an issue with the Tasmota code specifically.

  • Tasmota

    Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at

  • Just seeing your edit. WeightRaw is changing, so that is a good sign that everything might be hooked up right. I believe weight is in KG so it won't necessary change unless you put over a KG on the scale. I looked at the code for this and couldn't easily figure out what might be causing the calibration failure. I don't have time to figure out what all is going on there.

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

    WorkOS logo
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

Suggest a related project

Related posts