B4R Library rBH1750FVI - Digital Ambient Light Sensor

Ambient Light Sensor BH1750FVI Library using I2C communication.
Based on this open source project: https://github.com/Genotronex/BH1750FVI_Master

I2C addresses supported: 0x23 or 0x5C.
Various resolution modes possible - recommended is mode Continuous_H_resolution.

Tested sensor model GY-301 BH1750FVI connected to an Arduino MEGA

Wiring
BH1750 = Arduino
VCC = 3.3v
GND = GND
SCL = SCL
SDA = SDA
ADDR to A3 or GND = address 0x23
OR
ADDR to Vin = address 0x5C

Timer Example

Sub Process_Globals
    Public Serial1 As Serial
    Private bh As BH1750FVI
    Private Timer1 As Timer
End Sub

Private Sub AppStart
    Serial1.Initialize(115200)
    Log("AppStart")
    'Init the sensor with low I2C address 0x23 and the recommended high resolution mode
    bh.Initialize(bh.Device_Address_L, bh.Continuous_H_resolution_Mode)
    Timer1.Initialize("Timer1_Tick", 1000)
    Timer1.Enabled = True
End Sub

Sub Timer1_Tick
    Log(bh.LightIntensity, "lx")
End Sub

Output
492lx
6lx
115lx
55lx

ChangeLog
20170215 v1.01 - property change GetLightIntensity to getLightIntensity (bh.LightIntensity); added code examples.
20170127 v1.0

 

[rwblinn]

Update 20170215 v1.01

• Method GetLightIntensity changed to property getLightIntensity. Use example: bh.LightIntensity
• Added code examples in the h file