Opiniões dos clientes

Escrever uma crítica
  • Todos Comentários (132)
  • Imagem (6)
  • Vídeo (0)
  • Todas as estrelas
    • Todas as estrelas(132)
    • Estrela(123)
    • Estrela(9)
    • Estrela(0)
    • Estrela(0)
    • Estrela(0)
Ordenar por:
Comentários Anteriores
  • Comentários Anteriores
  • Mais úteis
  • Mais Recente
Comentários apenas do seu país (Brazil)
Mostrar original

Uma parte da revisão foi traduzida automaticamente.

  • 01/08/2018

    I was able to get this working very quickly, but the values coming from the HX711, with no load on the bar, kept drifting very significantly. After a long troubleshooting session, I found out that the HX711 print has a major design flaw. They forgot to connect the AGND pin of the HX711 to GND, so it's just floating in the air, explaining the drifting. This can be fixed by soldering a wire between the GND pin on one connector and the E- pin on the other side. I found the exact same board on a different site with a picture of the schematics. This confirms that AGND is not connected to GND. See attached picture. It's also important to note that the print is designed to be supplied with 5V, even though the HX711 is specified to work down to 2.6V. The internal voltage regulator on the HX711 is configured with R12 and R13 to produce 4.2V across the sensor (E+ and E-). Considering the drop across the transistor, the supply voltage needs to be about 4.5V (or up to 5.5V), otherwise the regulator can't do its job. If a 3.3V supply is provided, the resistors can be changed accordingly. If you use it as is on 3.3V, be aware that the built-in regulator will not be able to do its job, so any ripple on the supply voltage will influence the measurement.

    Comentários (3)
    Mostrar original
  • uhmVIP3

    Tested on a Professional instrument, and accuracy is within +- 5%, acceptable for this price.

    Mostrar original
  • 04/11/2017

    It is okay and very sensitive. it may need fine tune when putting in use. There are so many things may affect its reading.

    Mostrar original
  • 19/10/2017

    Nifty little 20kg load cell for measuring weight / thrust.

    Mostrar original
  • 30/01/2021

    recebido em boa ordem e o correio foi rápido. O pacote também estava bem embalado, obrigado, mas ainda precisa testar

    Mostrar original
  • 30/08/2020

    O pacote chegou conforme descrito

    Mostrar original
  • 16/11/2019

    excelente para proyectos

    Mostrar original
  • 20/10/2017

    Nice product.

    Mostrar original
  • 19/05/2022

    recebido em boas condições. Parece grande na imagem, mas a coisa real é muito pequena.

    Mostrar original
  • 16/01/2019

    Доставка быстрая, меньше месяца, трек не отслеживался.

    Comentários (1)
    Mostrar original

    Total 0 Páginas

    Vá para página


    Você pode estar interessado em

    recommendation for you
    • US$5.21
    • US$7.98
    • US$14.99
    • US$9.99
    • US$43.99
    • US$12.66
    • US$31.99
    • US$5.99
    • US$43.99
    • US$18.99
    • US$6.19
    • US$2.73
    • US$19.28
    • US$3.49
    • US$1.99
    • US$3.99
    • US$3.99
    • US$97.99