HX711 read force routine

hx711_readforce.c

static void read_force(void)
{

    int count;
    
    /* Offset and gain need to be calculated for each load cell */
    int offset = 1234; /* calibration offset */
    float gain = 1.818e-5; /* gain: convert output data to grams */
    
    while(1) {
        count = 0;
        for (int i = 0; i < 24; ++i) {
            gpio_set_level(CLOCK_PIN, 1);
            count <<= 1;
            gpio_set_level(CLOCK_PIN, 0);
            if (gpio_get_level(DATA_PIN)) 
                count++;
        }
        gpio_set_level(CLOCK_PIN, 1);
        count <<= 8;
        float grams = gain * (float) (count + abs(offset));
        gpio_set_level(CLOCK_PIN, 0);

        /* Note: delay is needed: HX711 cannot process data
        faster 80 SPS */
        vTaskDelay(100 / portTICK_RATE_MS); 

    }
}