SEN0097

SEN0097 Datasheet

Light Sensor SKU:SEN0097

Part	Datasheet
SEN0097	SEN0097 (pdf)

PDF Datasheet Preview
Light Sensor SKU:SEN0097 Editing Light Sensor Contents • 1 Introduction Specification • 2 Wiring Diagram • 3 Sample Code Introduction This is a BH1750 light intensity sensor breakout board with a 16 bit AD converter built-in which can directly output a digital signal, there is no need for complicated calculations. This is a more acurate and easier to use version of the simple foto resistor which only outputs a voltage that needs to be calculated in order to obtain meaningful data. With the BH1750 Light Sensor intensity can be directly measured by the luxmeter, without needing to make calculations. The data which is output by this sensor is directly output in Lux Lx . When objects which are lighted in homogeneous get the 1 lx luminous flux in one square meter ,their light intensity is 1lx. Sometimes to take good advantage of the illuminant, you can add a reflector to the illuminant.So that there will be more luminous flux in some directions and it can increase the ilumination of the target surface. For example Night moonlightnight:0.02--0.3 cloudy indoor:5--50; cloudy outdoor:50--500 Sunny indoor:100--1000 under the sunlight in summer afternoon about 106 power reading books for intensity of illumination:50--60 home video standard intensity of illumination:1400. Specification power supply voltage +3 to 5Vdc Interface I2C Wide range and High resolution. 1 - 65535 lx It is possible to select 2 types of I2C slave-address. Small measurement variation +/- 20% Size 0.850.630.13" 21163.3mm Wiring Diagram Light Sensor Wiring diagram Please note that the "add" Pin is to assign a different I2C address to the sensor. For our sample code this pin is not used. For more information about I2C protocol, go to Wikipedia I2C Sample Code / Sample code for the BH1750 Light sensor Version Connection: VCC-5v GND-GND SCL-SCL analog pin 5 SDA-SDA analog pin 4 ADD-NC */ #include <Wire.h> //BH1750 IIC Mode #include <math.h> int BH1750address = 0x23 //setting i2c address byte buff[2] void setup Wire.begin Serial.begin 57600 ;//init Serail band rate void loop int i uint16_t val=0 BH1750_Init BH1750address delay 200 ; if 2==BH1750_Read BH1750address val= buff[0]<<8 \|buff[1] /1.2 Serial.print val,DEC Serial.println "[lx]" delay 150 ; int BH1750_Read int address // int i=0 Wire.beginTransmission address Wire.requestFrom address, 2 while Wire.available // buff[i] = Wire.receive // receive one byte i++ Wire.endTransmission return i; void BH1750_Init int address Wire.beginTransmission address Wire.send 0x10 ;//1lx reolution 120ms Wire.endTransmission ; Powered By DFRobot 2008-2017

PDF Datasheet Preview

Light Sensor SKU:SEN0097

Editing Light Sensor

Contents
• 1 Introduction Specification
• 2 Wiring Diagram
• 3 Sample Code

Introduction

This is a BH1750 light intensity sensor breakout board with a 16 bit AD converter built-in which can directly output a digital signal, there is no need for complicated calculations. This is a more acurate and easier to use version of the simple foto resistor which only outputs a voltage that needs to be calculated in order to obtain meaningful data. With the BH1750 Light Sensor intensity can be directly measured by the luxmeter, without needing to make calculations. The data which is output by this sensor is directly output in Lux Lx . When objects which are lighted in homogeneous get the 1 lx luminous flux in one square meter ,their light intensity is 1lx. Sometimes to take good advantage of the illuminant, you can add a reflector to the illuminant.So that there will be more luminous flux in some directions and it can increase the ilumination of the target surface. For example Night moonlightnight:0.02--0.3 cloudy indoor:5--50;
cloudy outdoor:50--500 Sunny indoor:100--1000 under the sunlight in summer afternoon about 10*6 power reading books for intensity of illumination:50--60 home video standard intensity of illumination:1400.

Specification
power supply voltage +3 to 5Vdc Interface I2C Wide range and High resolution. 1 - 65535 lx It is possible to select 2 types of I2C slave-address. Small measurement variation +/- 20% Size 0.85*0.63*0.13" 21*16*3.3mm

Wiring Diagram

Light Sensor Wiring diagram Please note that the "add" Pin is to assign a different I2C address to the sensor. For our sample code this pin is not used. For more information about I2C protocol, go to Wikipedia I2C

Sample Code
/* Sample code for the BH1750 Light sensor Version

Connection:

VCC-5v GND-GND SCL-SCL analog pin 5 SDA-SDA analog pin 4 ADD-NC */
#include <Wire.h> //BH1750 IIC Mode #include <math.h> int BH1750address = 0x23 //setting i2c address
byte buff[2] void setup

Wire.begin Serial.begin 57600 ;//init Serail band rate
void loop
int i uint16_t val=0 BH1750_Init BH1750address delay 200 ;
if 2==BH1750_Read BH1750address
val= buff[0]<<8 |buff[1] /1.2 Serial.print val,DEC Serial.println "[lx]" delay 150 ;
int BH1750_Read int address //
int i=0 Wire.beginTransmission address Wire.requestFrom address, 2 while Wire.available //
buff[i] = Wire.receive // receive one byte i++ Wire.endTransmission return i;
void BH1750_Init int address

Wire.beginTransmission address Wire.send 0x10 ;//1lx reolution 120ms Wire.endTransmission ;

Powered By DFRobot 2008-2017

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived SEN0097 Datasheet file may be downloaded here without warranties.

Datasheet ID: SEN0097 509052