59 lines
1.2 KiB
Markdown
59 lines
1.2 KiB
Markdown
BH1750
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An Arduino library for digital light sensor breakout boards containing the BH1750FVI IC.
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The board uses I2C for communication.
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2 pins are required to interface to the device.
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Datasheet for the light sensor:
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http://rohmfs.rohm.com/en/products/databook/datasheet/ic/sensor/light/bh1750fvi-e.pdf
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To download, click the ZIP button above. Extract the zip file and rename the uncompressed folder to BH1750. Check that it contains BH1750.cpp and BH1750.h, keywords.txt.
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Place the BH1750 library folder your <arduinosketchfolder>/libraries/ folder. Restart the IDE.
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Example usage:
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```c
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/*
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Example of BH1750 library usage.
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This example initalises the BH1750 object using the default
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high resolution mode and then makes a light level reading every second.
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Connection:
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VCC-5v
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GND-GND
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SCL-SCL(analog pin 5)
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SDA-SDA(analog pin 4)
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ADD-NC or GND
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*/
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#include <Wire.h>
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#include <BH1750.h>
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BH1750 lightMeter;
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void setup(){
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Serial.begin(9600);
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lightMeter.begin();
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Serial.println("Running...");
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}
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void loop() {
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uint16_t lux = lightMeter.readLightLevel();
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Serial.print("Light: ");
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Serial.print(lux);
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Serial.println(" lx");
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delay(1000);
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}
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```
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