remove extra begin options. just one now.

also looked at #64 and reduced some delays

Author: ladyada

Adafruit_BME280.cpp

@@ -64,7 +64,7 @@ Adafruit_BME280::Adafruit_BME280(int8_t cspin, int8_t mosipin, int8_t misopin,
 /*!
  *   @brief  Initialise sensor with given parameters / settings
  *   @param addr the I2C address the device can be found on
- *   @param theWire the I2C object to use
+ *   @param theWire the I2C object to use, defaults to &Wire
  *   @returns true on success, false otherwise
  */
 bool Adafruit_BME280::begin(uint8_t addr, TwoWire *theWire) {
@@ -76,32 +76,6 @@ bool Adafruit_BME280::begin(uint8_t addr, TwoWire *theWire) {
   return status;
 }
 
-/*!
- *   @brief  Initialise sensor with given parameters / settings
- *   @param theWire the I2C object to use
- *   @returns true on success, false otherwise
- */
-bool Adafruit_BME280::begin(TwoWire *theWire) {
-  return begin(BME280_ADDRESS, theWire);
-}
-
-/*!
- *   @brief  Initialise sensor with given parameters / settings
- *   @param addr the I2C address the device can be found on
- *   @returns true on success, false otherwise
- */
-bool Adafruit_BME280::begin(uint8_t addr) {
-  return begin(addr, &Wire);
-}
-
-/*!
- *   @brief  Initialise sensor with given parameters / settings
- *   @returns true on success, false otherwise
- */
-bool Adafruit_BME280::begin(void) {
-  return begin(BME280_ADDRESS, &Wire);
-}
-
 /*!
  *   @brief  Initialise sensor with given parameters / settings
  *   @returns true on success, false otherwise
@@ -135,11 +109,11 @@ bool Adafruit_BME280::init() {
   write8(BME280_REGISTER_SOFTRESET, 0xB6);
 
   // wait for chip to wake up.
-  delay(300);
+  delay(10);
 
   // if chip is still reading calibration, delay
   while (isReadingCalibration())
-    delay(100);
+    delay(10);
 
   readCoefficients(); // read trimming parameters, see DS 4.2.2
 

Adafruit_BME280.h

@@ -190,13 +190,10 @@ class Adafruit_BME280 {
   // constructors
   Adafruit_BME280();
   Adafruit_BME280(int8_t cspin, SPIClass *theSPI = &SPI);
-      Adafruit_BME280(int8_t cspin, int8_t mosipin, int8_t misopin,
+  Adafruit_BME280(int8_t cspin, int8_t mosipin, int8_t misopin,
                       int8_t sckpin);
 
-  bool begin();
-  bool begin(TwoWire *theWire);
-  bool begin(uint8_t addr);
-  bool begin(uint8_t addr, TwoWire *theWire);
+  bool begin(uint8_t addr=BME280_ADDRESS, TwoWire *theWire=&Wire);
   bool init();
 
   void setSampling(sensor_mode mode = MODE_NORMAL,

examples/bme280test/bme280test.ino

@@ -42,16 +42,17 @@ void setup() {
     unsigned status;
 
     // default settings
-    // (you can also pass in a Wire library object like &Wire2)
     status = bme.begin();  
+    // You can also pass in a Wire library object like &Wire2
+    // status = bme.begin(0x76, &Wire2)
     if (!status) {
         Serial.println("Could not find a valid BME280 sensor, check wiring, address, sensor ID!");
         Serial.print("SensorID was: 0x"); Serial.println(bme.sensorID(),16);
         Serial.print("        ID of 0xFF probably means a bad address, a BMP 180 or BMP 085\n");
         Serial.print("   ID of 0x56-0x58 represents a BMP 280,\n");
         Serial.print("        ID of 0x60 represents a BME 280.\n");
         Serial.print("        ID of 0x61 represents a BME 680.\n");
-        while (1);
+        while (1) delay(10);
     }
 
     Serial.println("-- Default Test --");
@@ -86,4 +87,4 @@ void printValues() {
     Serial.println(" %");
 
     Serial.println();
-}
+}