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libraries/M5Unit-ENV/examples/ENV_IV/ENV_IV.ino

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+
+/**
+ * @file ENV_IV.ino
+ * @author SeanKwok (shaoxiang@m5stack.com)
+ * @brief 
+ * @version 0.1
+ * @date 2024-01-30
+ *
+ *
+ * @Hardwares: M5Core + Unit ENV_IV
+ * @Platform Version: Arduino M5Stack Board Manager v2.1.0
+ * @Dependent Library:
+ * M5UnitENV: https://github.com/m5stack/M5Unit-ENV
+ */
+
+#include "M5UnitENV.h"
+
+SHT4X sht4;
+BMP280 bmp;
+
+void setup() {
+    Serial.begin(115200);
+
+    if (!sht4.begin(&Wire, SHT40_I2C_ADDR_44, 21, 22, 400000U)) {
+        Serial.println("Couldn't find SHT4x");
+        while (1) delay(1);
+    }
+
+    // You can have 3 different precisions, higher precision takes longer
+    sht4.setPrecision(SHT4X_HIGH_PRECISION);
+    sht4.setHeater(SHT4X_NO_HEATER);
+
+    if (!bmp.begin(&Wire, BMP280_I2C_ADDR, 21, 22, 400000U)) {
+        Serial.println("Couldn't find BMP280");
+        while (1) delay(1);
+    }
+    /* Default settings from datasheet. */
+    bmp.setSampling(BMP280::MODE_NORMAL,     /* Operating Mode. */
+                    BMP280::SAMPLING_X2,     /* Temp. oversampling */
+                    BMP280::SAMPLING_X16,    /* Pressure oversampling */
+                    BMP280::FILTER_X16,      /* Filtering. */
+                    BMP280::STANDBY_MS_500); /* Standby time. */
+}
+
+void loop() {
+    if (sht4.update()) {
+        Serial.println("-----SHT4X-----");
+        Serial.print("Temperature: ");
+        Serial.print(sht4.cTemp);
+        Serial.println(" degrees C");
+        Serial.print("Humidity: ");
+        Serial.print(sht4.humidity);
+        Serial.println("% rH");
+        Serial.println("-------------\r\n");
+    }
+
+    if (bmp.update()) {
+        Serial.println("-----BMP280-----");
+        Serial.print(F("Temperature: "));
+        Serial.print(bmp.cTemp);
+        Serial.println(" degrees C");
+        Serial.print(F("Pressure: "));
+        Serial.print(bmp.pressure);
+        Serial.println(" Pa");
+        Serial.print(F("Approx altitude: "));
+        Serial.print(bmp.altitude);
+        Serial.println(" m");
+        Serial.println("-------------\r\n");
+    }
+    delay(1000);
+}