Official M5Stack StickC STM32F030F4 environmental SHT20 BMP280 YUN

Product Features

• Compatible with M5StickC
• On-board Microprocessor STM32F030F4
• Temperature and Humidity sensor SHT20
• Air pressure sensor BMP280
• Photoresistance
• 14 x SK6812 4020 RGB LED
• Three-layer structure design:
  - 1 x hook hole
  - 2 x 6x4mm magnet mounting positions
  - 1 x finishing Acrylic profile surface
• Development platform: Arduino, UIFlow (Blockly, Python)

Package Contents

• 1x YUN HAT
• 2x Dupont cables

// Please install Adafruit_BMP280 lib first
// Adafruit_BMP280 lib in Sketch->Include Library->Library Manager

#include "M5StickC.h"
#include <Adafruit_BMP280.h>
#include "SHT20.h"
#include "yunBoard.h"

SHT20 sht20;
Adafruit_BMP280 bmp;

uint32_t update_time = 0;
float tmp, hum;
float pressure;
uint16_t light;

void setup() {
M5.begin();
Wire.begin(0, 26, 100000);
M5.Lcd.setRotation(1);
M5.Lcd.setTextSize(2);
// RGB888
// led_set(uint8_t 1, 0x080808);

if (!bmp.begin(0x76)) {
Serial.println(F("Could not find a valid BMP280 sensor, check wiring!"));
}

/* Default settings from datasheet. */
bmp.setSampling(Adafruit_BMP280::MODE_NORMAL, /* Operating Mode. */
Adafruit_BMP280::SAMPLING_X2, /* Temp. oversampling */
Adafruit_BMP280::SAMPLING_X16, /* Pressure oversampling */
Adafruit_BMP280::FILTER_X16, /* Filtering. */
Adafruit_BMP280::STANDBY_MS_1000); /* Standby time. */

// put your setup code here, to run once:

}

uint8_t color_light = 5;

void loop() {

led_set_all((color_light << 16) | (color_light << 8) | color_light);
if(millis() > update_time) {
update_time = millis() + 1000;
tmp = sht20.read_temperature();
hum = sht20.read_humidity();
light = light_get();
pressure = bmp.readPressure();
M5.Lcd.setCursor(0, 8);
M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);
M5.Lcd.printf("tmp:%.2frn", tmp);
M5.Lcd.setTextColor(TFT_GREEN, TFT_BLACK);
M5.Lcd.printf("hum:%.2frn", hum);
M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);
M5.Lcd.printf("pre:%.2frn", pressure);
M5.Lcd.setTextColor(TFT_GREEN, TFT_BLACK);
M5.Lcd.printf("light:%04drn", light);
}

M5.update();

if(M5.BtnA.wasPressed()) {
esp_restart();
}

delay(10);
// put your main code here, to run repeatedly:

}