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VEML7700 Ambient Light Sensing Module BME82M131A

US$5.49 (Excl. Tax)
In stock
Quantity
39 pieces
Product ID
BME82M131A

The BME82M131A is a high-precision ambient light detection module developed by Best Modules, integrating the Holtek MCU HT66F2040 with the VEML7700 ambient light sensor. The module provides 16-bit resolution and supports a detection range of 0–120 klx, along with adjustable gain and integration time settings to accommodate various lighting conditions. It also supports cascading up to 8 modules, making system expansion more flexible. The module is suitable for applications such as surveillance systems, smart agriculture, and environmental sensing devices.

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FEATURES
  1. Input voltage: 3.3V–5.5V
  2. Operating current: 6.76mA @5V
  3. Ambient light sensor: VEML7700
    - Resolution: 16-bit
    - Measurement range: 0–120 klx
    - Accuracy: 0.0036 lx/ct
  4. Supports cascading up to 8 modules
  5. Configurable high/low threshold for ambient light (with interrupt mechanism)
  6. Communication interface: I2C (default address: 0x48, configurable via jumper)
  7. Built-in 4.7kΩ pull-up resistors on SCL/SDA
  8. Dimensions: 32.0 x 32.0 x 11.8 mm
  9. Package includes: BME82M131A x1 / 2x2P pin header x1
FUNCTION OVERVIEW
PIN DESCRIPTION

Pin Name Function
1 INT Interrupt pin
Outputs LOW when the ALS level rises above or falls below the set threshold
Otherwise remains HIGH
2 SCL I2C clock line
3 SDA I2C data line
4 VDD Power supply (positive)
5 GND Ground (negative supply)
6 GND Ground (negative supply)
7 VDD Power supply (positive)
8 ST_O Cascading status output pin
9 TRX Cascading single-wire communication pin
10 VDD Power supply (positive)
11 GND Ground (negative supply)
12 ST_I Cascading status input pin
13 TRX Cascading single-wire communication pin
RESOURCES
  1. MCU: Holtek HT66F2040, a compact A/D Flash MCU with built-in EEPROM, including datasheets and package information.
File Icon Keil Driver V1.0.1 (906.54 kB)
File Icon User Guide V1.00 (1.88 MB)
File Icon Arduino library V1.0.3 (535.41 kB)
File Icon Arduino Library Guide V1.20 (1.02 MB)
More Information
HS Code (reference) 8504.50.90.00-5
Dimension 32 x 40 x 12 mm
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