Hx711 - Deep Sleep

This page contains a simple example of shutting down the HX711 between readings (deep sleep).

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In this code snippet, the loop() function wakes up the HX711 from deep sleep, takes a raw reading, prints the result to the Serial Monitor, and then puts the HX711 back into deep sleep mode. The program waits for 15 seconds before repeating the process.

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Ensure that the correct pins for DAT and SCK are defined before initialization.

// Include the library
#include "HX711-SOLDERED.h"

// Define pins used for DAT and SCK here
#define PIN_DAT 4
#define PIN_SCK 3

// Create the HX711 object on the right pins
HX711 hx711(PIN_DAT, PIN_SCK);

void setup()
{
    Serial.begin(115200); // for debugging

    // Initialize HX711
    hx711.begin();

    // Wait a bit until it fully initializes
    delay(200);
}

void loop()
{
    // Wake up the HX711 from deep sleep
    hx711.setDeepSleep(false);

    // Wait a bit until it fully initializes
    delay(200);

    // Make a raw reading and store it in a variable
    long reading = hx711.getRawReading();

    // Print the reading
    Serial.print("HX711 Reading: ");
    Serial.println(reading);

    // Place the HX711 in deep sleep
    hx711.setDeepSleep(true);

    // Wait a long while until the next reading
    delay(15000);
}

hx711.begin()

Initializes the HX711 load-cell amplifier, setting up communication and verifying its presence.

Returns value: None.

hx711.setDeepSleep()

Puts the HX711 load-cell amplifier into deep sleep mode or wakes it up, depending on the input parameter.

Returns value: None.

Function parameters:

Type	Name	Description
bool	sleep	True to enable deep sleep mode, false to wake the HX711 from sleep.

HX711 Sensor Serial Monitor output

deepSleep.ino

Example file for utilizing deep sleep while using the HX711