He calibrado de manera independiente cada sensor HSen-10245 con una pesa de 28 kg. Sin embargo, cuando peso un objeto de alrededor 100 kg, tengo una variación de 10 a 20 kg. La otra medición la hago con balanzas comerciales y las pongo en cada pata de mi objeto.
Start by providing detailed information about your setup:
- What processor are you using?
- What modules or components are included?
- Is your calibration procedure the same as the one specified by the manufacturer?
- What range are you working with?
Please also post an annotated schematic of your project, showing all components, connections, and power sources. Include links to the technical documentation for each component. Additionally, what is the capacity of the HSen-10245?
This information will help us assist you more effectively.
Thanks for your recommendations:
Processor: I am using an ESP32 module, which serves as the main processor for data acquisition and communication.
- Modules and Components:
-Load Sensor: SEN-10245 (load cell).
-Amplifier: HX711 module for signal amplification and conversion.
-Microcontroller: ESP32 module for data processing.
-Power Source: USB power supply connected to the ESP32. - Calibration Procedure: The calibration procedure involves using known weights to derive a scaling factor. While I followed a procedure inspired by the manufacturer’s recommendation, adjustments were made due to environmental conditions and hardware setup.
- Range: I have tested individual loads ranging from 10 kg to 45 kg. When combined, four loads reach approximately 100 kg.
- Schematic and Documentation: Load Cell with 3 wires - #3 by Marmotine I changed red wire for the white one.
The typical capacity of this sensor is 50 kg, as per its specifications.
Which processor are you using? Please post a link to its technical specifications, as ESP32 has become a pseudo-generic name and could refer to many variants.
Without a schematic and detailed parts information, it's challenging to provide accurate advice. Specifically, what load cell junction box did you use for the load cells?
This resource may help you: The Basics of Load Cell Wiring and Trimming. Let me know if you need further clarification or assistance!
Which one.
You should use a special HX711 board with an ESP, one with two power supply terminals.
A 5volt supply pin for the load cell part, and a 3.3volt supply pin for the logic part.
Only Sparkfun sells those HX711 boards.
A common HX711 outputs 5volt-logic data, which could damage the ESP.
Use at least a 2k2:1k voltage divider on the data line, to reduce that line to 3.3volt.
Leo..
I am working with ESP32-WROOM-32U or ESP32 DevKitC V4.
Also, I am working with the following schematic, everything is welded.
Untitled.pdf (130.4 KB)
He trasladado su tema de una categoría de idioma inglés del foro a la categoría International > Español @dnieto15.
En adelante por favor usar la categoría apropiada a la lengua en que queráis publicar. Esto es importante para el uso responsable del foro, y esta explicado aquí la guía "How to get the best out of this forum".
Este guía contiene mucha información útil. Por favor leer.
De antemano, muchas gracias por cooperar.
Moderador:
Por favor, lee las Normas del foro
Si posteas en el foro en inglés usa idioma inglés para expresarte.
Si escribes en español debes usar el foro Arduino en español.
Edita también tu código/error usando etiquetas de código.
Ve a edición, luego selecciona todo el código que has publicado, lo cortas y click en <CODE/>
Este mensaje lo envío porque tu hilo fue movido del foro en inglés y por eso tenemos varias respuestas en ese idioma.
A partir de este post todos responden en español.
A las personas que hablan inglés le sugiero usar alguna IA o Google translante, nadie se ofende por el resultado mientras sea entendible.
Check this link it should help: Wiring multiple HX711 - #2 by Klaus_K and arduino - Connecting multiple full-bridge load cells together with HX711 - Electrical Engineering Stack Exchange and Load Cell Amplifier HX711 Breakout Hookup Guide - SparkFun Learn
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