PIMORONI BH1745 Luminance and Color Sensor Breakout


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SKU: 1243054
  1. Voltage: 2.3V to 3.6V
  2. Model: BH1745
  3. Correspond to I2C Bus Interface ( f/s mode support )
  4. Low Current by Power Down Function
  5. Rejecting 50Hz/60Hz Light Noise
  6. Correspond to 1.8V Logic Interface


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Category: Light/color Sensor

BH1745NUC is digital color sensor IC with I2C bus interface. This IC senses Red, Green and Blue light (RGB) and converts them to digital values. The high sensitivity, wide dynamic range and excellent Ircut characteristics makes this IC the most suitable to obtain the illuminance and color temperature of ambient light for adjusting LCD backlight of TV, mobile phone and
tablet PC. It is possible to detect very wide range light intensity. (0.005 – 40k lx)


  1. LCD TV
  2. Mobile phone
  3. NOTE PC
  4. Tablet PC
  5. Portable
  6. game machine
  7. Digital camera
  8. Digital video camera
  9. PDA
  10. LCD display


  1. The Excellent Ircut Characteristics with an Ircut Filter
  2. The High Sensitivity and Wide Dynamic Range (0.005 – 40k lx)
  3.  Supports Low Transmittance (Dark) Window
  4. Correspond to I2C Bus Interface ( f/s mode support )
  5. Low Current by Power Down Function
  6. Rejecting 50Hz/60Hz Light Noise
  7. Correspond to 1.8V Logic Interface
  8. Programmable Interrupt Function
  9. It is possible to select 2 type of I2C bus slave address (ADDR =’L’: “0111000”, ADDR =’H’: “0111001”)

Packages Includes:

1 x PIMORONI BH1745 Luminance and Colour Sensor Breakout

SKU: 1243054 Category:


Product Type

Luminance and Color Sensor

Operating Voltage (V)

2.3V to 3.6V


I2C interface, with address select via ADDR cuttable trace (0x38 or 0x39)

I 2C SCL Clock Frequency

400 kHz

Data Output

16 bit

Dimensional Accuracy (mm):

2.10mm x 2.00mm x 0.6mm

Weight (g):


Shipping Weight 0.004 kg
Shipping Dimensions 7 × 4 × 1 cm

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Country Of Origin: United Kingdom

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