master branch wash up

.travis.yml

@@ -0,0 +1,33 @@
+language: cpp
+env:
+  global:
+    - ARDUINO_PACKAGE_VERSION=1.8.5
+    - DISPLAY=:1.0
+
+before_install:
+  # arduino requires an X server even with command line
+  - /sbin/start-stop-daemon --start --quiet --pidfile /tmp/xvfb_$TRAVIS_JOB_NUMBER.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :1 -ac -screen 0 1280x1024x16
+
+install:
+  - wget -q -O- http://downloads.arduino.cc/arduino-$ARDUINO_PACKAGE_VERSION-linux64.tar.xz | tar -Jxf -
+  - sudo mv arduino-$ARDUINO_PACKAGE_VERSION /usr/local/share/arduino
+  - sudo ln -s /usr/local/share/arduino/arduino /usr/local/bin/arduino
+  # Add esp8266 board support
+  # - arduino --pref "boardsmanager.additional.urls=http://arduino.esp8266.com/stable/package_esp8266com_index.json" --save-prefs
+  # - arduino --install-boards esp8266:esp8266
+  - arduino --pref "compiler.warning_level=all" --save-prefs
+  # link project directory into Arduino libraries area.
+  - ln -s $PWD /usr/local/share/arduino/libraries/BH1750
+
+script:
+  # uno
+  - arduino --verify --board arduino:avr:uno $PWD/examples/BH1750test/BH1750test.ino
+  - arduino --verify --board arduino:avr:uno $PWD/examples/BH1750advanced/BH1750advanced.ino
+  - arduino --verify --board arduino:avr:uno $PWD/examples/BH1750onetime/BH1750onetime.ino
+  - arduino --verify --board arduino:avr:uno $PWD/examples/BH1750autoadjust/BH1750autoadjust.ino
+  - arduino --verify --board arduino:avr:uno $PWD/examples/BH1750differentI2Caddress/BH1750differentI2Caddress.ino
+  # esp8266
+  # - arduino --verify --board esp8266:esp8266:generic $PWD/examples/BH1570test/BH1750test.ino
+  # - arduino --verify --board esp8266:esp8266:generic $PWD/examples/BH1570advanced/BH1750advanced.ino
+  # - arduino --verify --board esp8266:esp8266:generic $PWD/examples/BH1750onetime/BH1750onetime.ino
+  # - arduino --verify --board esp8266:esp8266:generic $PWD/examples/BH1750autoadjust/BH1750autoadjust.ino

examples/BH1750advanced/BH1750advanced.ino

@@ -24,16 +24,7 @@ will be 0x23 (by default).
 #include <BH1750.h>
 #include <Wire.h>
 
-/*
-  BH1750 can be physically configured to use two I2C addresses:
-    - 0x23 (most common) (if ADD pin had < 0.7VCC voltage)
-    - 0x5C (if ADD pin had > 0.7VCC voltage)
-
-  Library uses 0x23 address as default, but you can define any other address.
-  If you had troubles with default value - try to change it to 0x5C.
-
-*/
-BH1750 lightMeter(0x23);
+BH1750 lightMeter;
 
 void setup() {
 

examples/BH1750differentI2Caddress/BH1750differentI2Caddress.ino

@@ -0,0 +1,59 @@
+/*
+
+  Different I2C address BH1750 library usage example
+
+  This example has some comments about advanced usage features.
+
+  Connection:
+
+    VCC -> 3V3 or 5V
+    GND -> GND
+    SCL -> SCL (A5 on Arduino Uno, Leonardo, etc or 21 on Mega and Due, on
+  esp8266 free selectable) SDA -> SDA (A4 on Arduino Uno, Leonardo, etc or 20 on
+  Mega and Due, on esp8266 free selectable) ADD -> VCC
+
+  ADD pin is used to set sensor I2C address. If it has voltage greater or equal
+  to 0.7VCC voltage (e.g. you've connected it to VCC) the sensor address will be
+  0x5C. In other case (if ADD voltage less than 0.7 * VCC) the sensor address
+  will be 0x23 (by default).
+
+*/
+
+#include <BH1750.h>
+#include <Wire.h>
+
+/*
+  BH1750 can be physically configured to use two I2C addresses:
+    - 0x23 (most common) (if ADD pin had < 0.7VCC voltage)
+    - 0x5C (if ADD pin had > 0.7VCC voltage)
+
+  Library uses 0x23 address as default, but you can define any other address.
+  If you had troubles with default value - try to change it to 0x5C.
+
+*/
+BH1750 lightMeter;
+
+void setup() {
+
+  Serial.begin(9600);
+
+  // Initialize the I2C bus (BH1750 library doesn't do this automatically)
+  Wire.begin();
+  // On esp8266 you can select SCL and SDA pins using Wire.begin(D4, D3);
+
+  // begin returns a boolean that can be used to detect setup problems.
+  if (lightMeter.begin(BH1750::CONTINUOUS_HIGH_RES_MODE, 0x5c)) {
+    Serial.println(F("BH1750 different I2C address begin"));
+  } else {
+    Serial.println(F("Error initialising BH1750"));
+  }
+}
+
+void loop() {
+
+  float lux = lightMeter.readLightLevel();
+  Serial.print("Light: ");
+  Serial.print(lux);
+  Serial.println(" lx");
+  delay(1000);
+}