#include "M5Atom.h"
#include "hx711.h"

float firstReadData;
float weight;
#define M_SIZE 1.3333
#define TFT_GREY 0x5AEB
float ltx = 0; // Saved x coord of bottom of needle
uint16_t osx = M_SIZE*120, osy = M_SIZE*120; // Saved x & y coords
int old_analog = -999; // Value last displayed

HX711 scale(32, 26); // 32:DOUT 26:SCK

extern const unsigned char AtomImageData[375 + 2];

uint8_t DisBuff[2 + 5 * 5 * 3];

void setBuff(uint8_t Rdata, uint8_t Gdata, uint8_t Bdata)
{
    DisBuff[0] = 0x05;
    DisBuff[1] = 0x05;
    for (int i = 0; i < 25; i++)
    {
        DisBuff[2 + i * 3 + 0] = Rdata;
        DisBuff[2 + i * 3 + 1] = Gdata;
        DisBuff[2 + i * 3 + 2] = Bdata;
    }
}

void setup()
{
    M5.begin(true, false, true);
    delay(10);
    setBuff(0x00, 0x00, 0x00);
    M5.dis.displaybuff(DisBuff);

//下記2行の値を調整して重さ検知時の値が0に近くなるように調整します。
    scale.setOffset(8800);
    scale.setScale(1889250);
//

    scale.getGram();
    delay(1000);
    firstReadData = scale.getGram();     
}

void loop()
{
    //weight = (scale.getGram() - firstReadData) / 2.0;
    weight=0;
    weight = scale.getGram();
    Serial.print("weight: ");
    Serial.println(weight); 
    delay(100);

    if(weight<=0.5){    //何もないとき
      setBuff(0xFF, 0xFF, 0xFF);
      M5.dis.displaybuff(DisBuff);

    }else if(weight<=0.6 && weight>=0.5){
      setBuff(0x00, 0xFF, 0x00);
      M5.dis.displaybuff(DisBuff);

    }else if(weight<0.7 && weight>=0.6){
      setBuff(0xFF, 0x00, 0x00);
      M5.dis.displaybuff(DisBuff);

    }else if(weight>=0.7){
      setBuff(0xFF, 0x00, 0xFF);
      M5.dis.displaybuff(DisBuff);

    }else{
      setBuff(0xFF, 0xFF, 0x00);
      M5.dis.displaybuff(DisBuff);

      }

    M5.update();
}