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update weight unit example

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This commit is contained in:
Sean Kwok
2021-12-01 14:56:10 +08:00
parent 32709d459c
commit e417ebdcb1
1 changed files with 25 additions and 17 deletions
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examples/Unit/WEIGHT_HX711/WEIGHT_HX711.ino
+25 -17
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@@ -15,40 +15,48 @@
*/
#include<M5Stack.h>
#include <M5GFX.h>
#include "HX711.h"
M5GFX display;
M5Canvas canvas(&display);
// HX711 related pin Settings. HX711 相关引脚设置
#define LOADCELL_DOUT_PIN 36
#define LOADCELL_SCK_PIN 26
HX711 scale;
const long LOADCELL_OFFSET = 50682624;
const long LOADCELL_DIVIDER = 5895655;
void setup() {
M5.begin(); //Init M5Stack. 初始化M5Stack
M5.Power.begin(); //Init power 初始化电源模块
M5.lcd.setTextSize(2); //Set the text size to 2. 设置文字大小为2
display.begin();
canvas.setColorDepth(1); // mono color
canvas.createSprite(display.width(), display.height());
canvas.setTextDatum(MC_DATUM);
canvas.setPaletteColor(1, GREEN);
scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN); // Initialize library with data output pin, clock input pin and gain factor. 初始化库的数据输出引脚，时钟输入引脚和增益因子。
scale.set_scale(LOADCELL_DIVIDER); //set the SCALE value this value is used to convert the raw data to measure units. 设置SCALE值,该值用于将原始数据转换为度量单位
scale.set_offset(LOADCELL_OFFSET); //Set the tare weight. 设置皮重
scale.set_scale(61.2f); // this value is obtained by calibrating the scale with known weights; see the README for details. 这个值是通过校正已知权重的刻度而得到的
scale.tare(); // reset the scale to 0. 将比例重置为0
M5.Lcd.print(" Weight Unit\nConnect the Weight Unit to PortB");
M5.Lcd.setCursor(20,210,1);
M5.Lcd.print("Calibration");
canvas.drawString("Calibration sensor....", 160, 80);
canvas.pushSprite(0, 0);
scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
//The scale value is the adc value corresponding to 1g
scale.set_scale(61.2f); //set scale
scale.tare(); // auto set offset
}
void loop() {
canvas.fillSprite(BLACK);
canvas.setTextSize(1);
canvas.drawString("Connect the Weight Unit to PortB(G26,G36)", 160, 40);
canvas.drawString("Click Btn A for Calibration", 160, 80);
int weight = scale.get_units(5);
canvas.setTextSize(3);
canvas.drawString("Weight:" + String(weight) + "g", 160, 150);
M5.update();
if (M5.BtnA.wasPressed()) { //If button A is pressed. 如果按键A按下
scale.set_offset(LOADCELL_OFFSET + scale.read());
if (M5.BtnA.wasPressed()) {
scale.set_scale(61.2f);
scale.tare();
canvas.drawString("Calibration!", 160, 180);
}
int weight = scale.get_units(5);
M5.Lcd.fillRect(75, 80, 320, 80, BLACK);
M5.Lcd.setCursor(75,80);
M5.Lcd.printf("Weight:%1d g", weight);
canvas.pushSprite(0, 0);
}