Unipi 1.1 and HX711

  • Hello everyone,
    First of all, I wish an happy new year.

    I've tried to connect a HX711 modul to the Unipi 1.1 but it doesn't work until now.

    Basically, the HX711 semiconductor is 24-Bit Analog-to-Digital Converter (ADC) for Weigh Scales (https://www.mouser.com/ds/2/813/hx711_english-1022875.pdf).
    This semiconductor works well with my arduino and with the raspberry alone but I'm able to make it works with Unipi, I tried to use Relay as well as Analog output as digital output but it is not working.

    Is anyone already work with this kind of digital Converter with a Unipi 1.1 ?

    can the neuron (with its digital output) solve the problem ?

    Thank you everyone

  • administrators

    @Hen-Ri From what I got in the documentation, the IC uses serial communication to send the data so these pins have to be connected directly to the GPIOs of RPi as you can see in some tutorials. Definitely, do not connect the sensor to digital inputs or relays of UniPi 1 or Neuron!

    To connect the sensor to RPi, I suggest you make a custom flat cable and wire out some of the unused GPIO pins to the sensor (check the documentation of UniPi 1 for used GPIOs).

  • Thank you Tomas, I will look to do something like that.

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