Unit Mini Scales Arduino Tutorial

#include <M5Unified.h>
#include <M5GFX.h>
#include "UNIT_SCALES.h"

M5Canvas canvas(&M5.Lcd);
UNIT_SCALES scales;

void setup() {
    M5.begin();
    M5.Lcd.begin();
    canvas.setFont(&fonts::FreeMonoBold12pt7b);
    canvas.createSprite(M5.Lcd.width(), M5.Lcd.height());
    // Initialize PORT.A I2C and retry until the unit responds.
    Wire.begin();
    while (!scales.begin(&Wire, EX_SDA, EX_SCL, DEVICE_DEFAULT_ADDR)) {
        Serial.println("Unit Mini Scales connect error");
        M5.Lcd.print("Unit Mini Scales connect error");
        delay(1000);
    }
    // Set the unit status LED to dim green.
    scales.setLEDColor(0x001000);
}

void loop() {
    float weight = scales.getWeight();
    float gap    = scales.getGapValue();
    int adc      = scales.getRawADC();

    // Redraw the weight and raw ADC values.
    canvas.fillSprite(BLACK);
    canvas.drawCenterString("Unit Mini Scale Test", 160, 10);
    canvas.setTextColor(WHITE);
    canvas.setCursor(10, 50);
    canvas.printf("WEIGHT:");
    canvas.setTextColor(GREEN);
    canvas.printf("%.2fg", weight);
    canvas.setCursor(10, 100);
    canvas.setTextColor(WHITE);
    canvas.printf("ADC:");
    canvas.setTextColor(GREEN);
    canvas.printf("%d", adc);
    canvas.setTextColor(ORANGE);
    canvas.drawCenterString("Touch Screen to Offset", 160, 200);
    canvas.pushSprite(0, 0);

    // Tap the screen to use the current load as the zero offset.
    M5.update();
    if (M5.Touch.getDetail().wasClicked()) {
        scales.setOffset();
    }
}