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Added support for MAX44009 and BH1750 sensors
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| .DS_Store |
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| language: cpp | ||
| env: | ||
| global: | ||
| - ARDUINO_PACKAGE_VERSION=1.8.5 | ||
| - DISPLAY=:1.0 | ||
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| before_install: | ||
| # arduino requires an X server even with command line | ||
| - /sbin/start-stop-daemon --start --quiet --pidfile /tmp/xvfb_$TRAVIS_JOB_NUMBER.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :1 -ac -screen 0 1280x1024x16 | ||
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| install: | ||
| - wget -q -O- http://downloads.arduino.cc/arduino-$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 | ||
| # link project directory into Arduino libraries area. | ||
| - ln -s $PWD /usr/local/share/arduino/libraries/BH1750 | ||
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| script: | ||
| # uno | ||
| - arduino --verify --board arduino:avr:uno $PWD/examples/BH1750test/BH1750test.ino | ||
| - arduino --verify --board arduino:avr:uno $PWD/examples/BH1750advanced/BH1750advanced.ino | ||
| # esp8266 | ||
| # - arduino --verify --board esp8266:esp8266:generic $PWD/examples/BH1570test/BH1750test.ino | ||
| # - arduino --verify --board esp8266:esp8266:generic $PWD/examples/BH1570advanced/BH1750advanced.ino |
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| /* | ||
| This is a library for the BH1750FVI Digital Light Sensor breakout board. | ||
| The BH1750 board uses I2C for communication. Two pins are required to | ||
| interface to the device. Configuring the I2C bus is expected to be done | ||
| in user code. The BH1750 library doesn't do this automatically. | ||
| Written by Christopher Laws, March, 2013. | ||
| Modified by Dan Ogorchock on 2018-07-04 for ST_Anything compatability | ||
| */ | ||
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| #include "BH1750.h" | ||
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| // Define milliseconds delay for ESP8266 platform | ||
| #if defined(ESP8266) | ||
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| #include <pgmspace.h> | ||
| #define _delay_ms(ms) delayMicroseconds((ms) * 1000) | ||
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| // Use _delay_ms from utils for AVR-based platforms | ||
| #elif defined(__avr__) | ||
| #include <util/delay.h> | ||
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| // Use Wiring's delay for compability with another platforms | ||
| #else | ||
| #define _delay_ms(ms) delay(ms) | ||
| #endif | ||
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| // Legacy Wire.write() function fix | ||
| #if (ARDUINO >= 100) | ||
| #define __wire_write(d) Wire.write(d) | ||
| #else | ||
| #define __wire_write(d) Wire.send(d) | ||
| #endif | ||
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| // Legacy Wire.read() function fix | ||
| #if (ARDUINO >= 100) | ||
| #define __wire_read() Wire.read() | ||
| #else | ||
| #define __wire_read() Wire.receive() | ||
| #endif | ||
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| /** | ||
| * Constructor | ||
| * @params addr Sensor address (0x23 or 0x5C, see datasheet) | ||
| * | ||
| * Default for BH1750 is 0x23 | ||
| */ | ||
| BH1750::BH1750(byte addr) { | ||
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| BH1750_I2CADDR = addr; | ||
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| } | ||
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| /** | ||
| * Configure sensor | ||
| * @param mode Measurement mode | ||
| */ | ||
| bool BH1750::begin(Mode mode) { | ||
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| // I2C is expected to be initialized outside this library | ||
| //DGO Revision for ST_Anything compatability - all other I2C sensor initialize I2C. | ||
| // This one was the exception, but I have modified it to be like the others. | ||
| Wire.begin(); | ||
| // Configure sensor in specified mode | ||
| return configure(mode); | ||
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| } | ||
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| /** | ||
| * Configure BH1750 with specified mode | ||
| * @param mode Measurement mode | ||
| */ | ||
| bool BH1750::configure(Mode mode) { | ||
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| // default transmission result to a value out of normal range | ||
| byte ack = 5; | ||
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| // Check measurement mode is valid | ||
| switch (mode) { | ||
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| case BH1750::CONTINUOUS_HIGH_RES_MODE: | ||
| case BH1750::CONTINUOUS_HIGH_RES_MODE_2: | ||
| case BH1750::CONTINUOUS_LOW_RES_MODE: | ||
| case BH1750::ONE_TIME_HIGH_RES_MODE: | ||
| case BH1750::ONE_TIME_HIGH_RES_MODE_2: | ||
| case BH1750::ONE_TIME_LOW_RES_MODE: | ||
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| // Send mode to sensor | ||
| Wire.beginTransmission(BH1750_I2CADDR); | ||
| __wire_write((uint8_t)BH1750_MODE); | ||
| ack = Wire.endTransmission(); | ||
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| // Wait a few moments to wake up | ||
| _delay_ms(10); | ||
| break; | ||
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| default: | ||
| // Invalid measurement mode | ||
| Serial.println(F("[BH1750] ERROR: Invalid mode")); | ||
| break; | ||
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| } | ||
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| // Check result code | ||
| switch (ack) { | ||
| case 0: | ||
| BH1750_MODE = mode; | ||
| return true; | ||
| case 1: // too long for transmit buffer | ||
| Serial.println(F("[BH1750] ERROR: too long for transmit buffer")); | ||
| case 2: // received NACK on transmit of address | ||
| Serial.println(F("[BH1750] ERROR: received NACK on transmit of address")); | ||
| case 3: // received NACK on transmit of data | ||
| Serial.println(F("[BH1750] ERROR: received NACK on transmit of data")); | ||
| case 4: // other error | ||
| Serial.println(F("[BH1750] ERROR: other error")); | ||
| default: | ||
| Serial.println(F("[BH1750] ERROR: undefined error")); | ||
| break; | ||
| } | ||
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| return false; | ||
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| } | ||
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| /** | ||
| * Read light level from sensor | ||
| * @return Light level in lux (0 ~ 65535) | ||
| */ | ||
| uint16_t BH1750::readLightLevel(bool maxWait) { | ||
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| if (BH1750_MODE == UNCONFIGURED) { | ||
| Serial.println(F("[BH1750] Device is not configured!")); | ||
| return 0; | ||
| } | ||
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| // Measurement result will be stored here | ||
| uint16_t level=65535; | ||
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| // Send mode to sensor | ||
| Wire.beginTransmission(BH1750_I2CADDR); | ||
| __wire_write((uint8_t)BH1750_MODE); | ||
| Wire.endTransmission(); | ||
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| // Wait for measurement to be taken. | ||
| // Measurements have a maximum measurement time and a typical measurement | ||
| // time. The maxWait argument determines which measurement wait time is | ||
| // used when a one-time mode is being used. The typical (shorter) | ||
| // measurement time is used by default and if maxWait is set to True then | ||
| // the maximum measurement time will be used. See data sheet pages 2, 5 | ||
| // and 7 for more details. | ||
| // A continuous mode measurement can be read immediately after re-sending | ||
| // the mode command. | ||
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| switch (BH1750_MODE) { | ||
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| case BH1750::ONE_TIME_LOW_RES_MODE: | ||
| case BH1750::ONE_TIME_HIGH_RES_MODE: | ||
| case BH1750::ONE_TIME_HIGH_RES_MODE_2: | ||
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| if (BH1750_MODE == BH1750::ONE_TIME_LOW_RES_MODE) { | ||
| maxWait ? _delay_ms(24) : _delay_ms(16); | ||
| } | ||
| else { | ||
| maxWait ? _delay_ms(180) :_delay_ms(120); | ||
| } | ||
| break; | ||
| default: break; | ||
| } | ||
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| // Read two bytes from the sensor, which are low and high parts of the sensor | ||
| // value | ||
| Wire.requestFrom(BH1750_I2CADDR, 2); | ||
| if (Wire.available() == 2) { | ||
| level = __wire_read(); | ||
| level <<= 8; | ||
| level |= __wire_read(); | ||
| } | ||
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| // Print raw value if debug enabled | ||
| #ifdef BH1750_DEBUG | ||
| Serial.print(F("[BH1750] Raw value: ")); | ||
| Serial.println(level); | ||
| #endif | ||
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| // Convert raw value to lux | ||
| level /= 1.2; | ||
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| // Print converted value if debug enabled | ||
| #ifdef BH1750_DEBUG | ||
| Serial.print(F("[BH1750] Converted value: ")); | ||
| Serial.println(level); | ||
| #endif | ||
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| return level; | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| /* | ||
| This is a library for the BH1750FVI Digital Light Sensor | ||
| breakout board. | ||
| The BH1750 board uses I2C for communication. Two pins are required to | ||
| interface to the device. Configuring the I2C bus is expected to be done | ||
| in user code. The BH1750 library doesn't do this automatically. | ||
| Datasheet: http://rohmfs.rohm.com/en/products/databook/datasheet/ic/sensor/light/bh1750fvi-e.pdf | ||
| Written by Christopher Laws, March, 2013. | ||
| Modified by Dan Ogorchock on 2018-07-04 for ST_Anything compatability | ||
| */ | ||
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| #ifndef BH1750_h | ||
| #define BH1750_h | ||
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| #if (ARDUINO >= 100) | ||
| #include <Arduino.h> | ||
| #else | ||
| #include <WProgram.h> | ||
| #endif | ||
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| #include "Wire.h" | ||
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| // Uncomment, to enable debug messages | ||
| // #define BH1750_DEBUG | ||
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| // No active state | ||
| #define BH1750_POWER_DOWN 0x00 | ||
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| // Wating for measurement command | ||
| #define BH1750_POWER_ON 0x01 | ||
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| // Reset data register value - not accepted in POWER_DOWN mode | ||
| #define BH1750_RESET 0x07 | ||
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| //I2C Addresses | ||
| #define BH1750_ADDR_LOW 0x23 | ||
| #define BH1750_ADDR_HIGH 0x5C | ||
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| class BH1750 { | ||
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| public: | ||
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| enum Mode | ||
| { | ||
| UNCONFIGURED = 0, | ||
| // Measurement at 1lx resolution. Measurement time is approx 120ms. | ||
| CONTINUOUS_HIGH_RES_MODE = 0x10, | ||
| // Measurement at 0.5lx resolution. Measurement time is approx 120ms. | ||
| CONTINUOUS_HIGH_RES_MODE_2 = 0x11, | ||
| // Measurement at 4lx resolution. Measurement time is approx 16ms. | ||
| CONTINUOUS_LOW_RES_MODE = 0x13, | ||
| // Measurement at 1lx resolution. Measurement time is approx 120ms. | ||
| ONE_TIME_HIGH_RES_MODE = 0x20, | ||
| // Measurement at 0.5lx resolution. Measurement time is approx 120ms. | ||
| ONE_TIME_HIGH_RES_MODE_2 = 0x21, | ||
| // Measurement at 1lx resolution. Measurement time is approx 120ms. | ||
| ONE_TIME_LOW_RES_MODE = 0x23 | ||
| }; | ||
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| BH1750(byte addr = BH1750_ADDR_LOW); | ||
| bool begin(Mode mode = CONTINUOUS_HIGH_RES_MODE); | ||
| bool configure(Mode mode); | ||
| uint16_t readLightLevel(bool maxWait = false); | ||
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| private: | ||
| int BH1750_I2CADDR; | ||
| Mode BH1750_MODE = UNCONFIGURED; | ||
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| }; | ||
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| #endif |
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