Ambient Light Sensor - VEML7700 (Qwiic)

The Qwiic Ambient Light Sensor - VEML7700 is a must-have for those who require accurate and high-resolution ambient light measurements. The sensor comes in a compact 6.8mm x 3.0mm x 2.5mm package and features a 16-bit resolution. The VEML7700 includes a highly sensitive photodiode, a low noise amplifier, a 16-bit A/D converter and supports an I²C bus communication interface.

Sparkfun's VEML7700 stands out due to its Filtron^TM technology adaption, which mimics the human eye response, and O-Trim^TM technology adoption, ensuring ALS output tolerance of ≤10%. It offers a 16-bit dynamic range for ambient light detection from 0 lx to about 167 klx with a resolution down to 0.005 lx/count. Additionally, it has 100 Hz and 120 Hz flicker noise rejection, excellent temperature compensation, high dynamic detection resolution, software shutdown mode control, and high and low threshold windows with interrupt flags.

This sensor is perfect for applications that require precise light measurements. It can be used in smart home automation for light control, in mobile devices for auto-brightness adjustment, and in digital signage for brightness adjustment based on ambient light. The VEML7700 offers a reliable and efficient solution for these applications and more.

Sparkfun's VEML7700 is also user-friendly. Their Arduino Library converts the raw sensor data into lux, automatically compensating for the sensor's gain and integration time settings. The breakout board includes two Qwiic connectors, I²C breakout pins, I²C pull-up resistors (configurable), and a power LED (configurable).

As a SparkX product, the VEML7700 represents the cutting edge of technology. While these rapidly produced products are tested, they come with no guarantees, offering an exciting opportunity for those who love to experiment and innovate.

Key Features:

• Close to real human eye response
• ALS output tolerance ≤ 10%
• 16-bit dynamic range for ambient light detection
• 100 Hz and 120 Hz flicker noise rejection
• Excellent temperature compensation
• High dynamic detection resolution
• Software shutdown mode control
• High and low threshold windows with interrupt flags
• Supply voltage: 3.3V (TYP); 2.5V (MIN); 3.6V (MAX)
• Typical current draw: Shut down: 0.5µA; Refresh time 4100ms: 2µA; Refresh time 100ms: 45µA
• I²C address: 0x10 (unshifted)

Supporting Documents:

• Schematic
• Eagle files
• Datasheet (VEML7700)
• Application note (VEML7700)
• GitHub Hardware Repo
• Dimensions
• Arduino Library