добавил ещё несколько примеров для I2C

libraries/Wire/examples/BMP280_terminal/BMP280_terminal.ino

@@ -0,0 +1,50 @@
+
+/*
+  The BMP280 temperature and pressure sensor connected to I2C is used for this test.  
+  The example uses the Adafruit_BMP280 library, it must be installed first.
+*/
+
+#include <Wire.h>
+#include <Adafruit_BMP280.h>
+
+Adafruit_BMP280 bmp;
+
+void setup() {
+  Serial.begin(115200);
+  while( ! Serial )   
+    ;
+  Serial.println("BMP280 run test in terminal");
+
+  unsigned status;
+  status = bmp.begin(BMP280_ADDRESS_ALT, BMP280_CHIPID);
+  
+  if (!status) {
+    Serial.println("Could not find a valid BMP280 sensor!");
+    while(1) 
+      ;
+  }
+
+  /* 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_500); /* Standby time. */
+}
+
+void loop() {
+    Serial.print(F("Temperature = "));
+    Serial.print(bmp.readTemperature());
+    Serial.println(" *C");
+
+    Serial.print(F("Pressure = "));
+    Serial.print(bmp.readPressure());
+    Serial.println(" Pa");
+
+    Serial.print(F("Approx altitude = "));
+    Serial.print(bmp.readAltitude(1013.25)); /* Adjusted to local forecast! */
+    Serial.println(" m");
+
+    Serial.println();
+    delay(2000);
+}