The Gravity VEML7700 is a high-accuracy digital ambient light sensor that outputs readings directly in lux (lx) over an I²C interface. Built around the Vishay VEML7700 IC, it features a 16-bit ADC, a high-sensitivity photodiode, and a low-noise amplifier — delivering precise light measurements without the need for manual voltage-to-lux calculations.

With a measurement range of 0–120,000 lx and a resolution of 0.0036 lx/ct, this sensor significantly outperforms basic photoresistors and the older BH1750 (limited to 65,000 lx). The Gravity I²C connector makes wiring straightforward with compatible DFRobot controllers and Arduino boards.

Key Features

• Direct Lux Output – Digital readings in lux via I²C, no manual conversion required
• High Precision – 0.0036 lx/ct resolution for accurate low-light measurement
• Wide Range – 0–120,000 lx (up to 167,000 lx in extended mode)
• 16-Bit ADC – High-resolution digitisation of light levels
• Low Power Consumption – Suitable for battery-powered and IoT applications
• Gravity I²C Interface – Plug-and-play connection to compatible controllers

Specifications

• Sensor IC – Vishay VEML7700
• Interface – I²C (Gravity connector)
• Measurement Range – 0–120,000 lx (extended to 167,000 lx)
• Resolution – 0.0036 lx/ct
• ADC – 16-bit
• Operating Voltage – 3.3–5 V

Ideal For

• Ambient light monitoring and data logging
• Automatic brightness adjustment in displays or lighting
• Weather stations and environmental sensing

Package Contents

• 1× Gravity VEML7700 Ambient Light Sensor Module