Gravity: 8x8 Matrix ToF 3D Distance Sensor (I2C&UART, 3.5m Range, 60 FOV)

The Gravity: 8*8 64-Pixel Matrix Time-of-Flight (ToF) Sensor is a compact and efficient 3D depth-sensing solution that bridges the gap between simple distance sensors and complex depth cameras. Powered by onboard firmware running on an RP2040 microcontroller, it delivers real-time depth data across an 88 matrix of 64 points within a 60 field of view, with a detection range of up to 3.5 meters. Featuring low power consumption and plug-and-play compatibility, it is well-suited for robotics, interactive art, gesture recognition, and smart automation. With support forArduino,micro:bit,ESP32,Raspberry Pi, andLattePanda, it enables the development of advanced applications such as intelligent obstacle avoidance, contactless gesture control, and immersive interactive installations.

Figure: DFRobot 8×8 64-Pixel Matrix ToF Sensor provides intelligent obstacle avoidance for robots

3D Depth Perception at the Perfect Balance Point

This 3D robot obstacle avoidance sensor bridges the gap between basic ultrasonic sensors and high-cost AI depth cameras. Instead of seeing a single point, it generates a 64-pixel depth map that provides contextthe obstacle, the open path, the edge of a table. This enables smooth, intelligent navigation without the complexity and processing demands of advanced cameras. With affordable pricing and ultra-low power usage, it offers the just right level of 3D vision for a wide range of creative projects.

Unmatched Compatibility for Maker Projects

This Matrix ToF proximity sensor was built for the way makers work, designed to connect to virtually anything in the workshop.

• Supported Platforms: Arduino, micro:bit, ESP32, Raspberry Pi, LattePanda, UNIHIKER K10.
• Supported Programming Methods: Whether using the Arduino IDE, or graphical editors like Mind+ and MakeCode, libraries and tutorials are available.
• Connection Options: Support Gravity-I2C / UART / USB-C.
• Cascading Support: The 4 switchable I2C addresses let you daisy-chain up to four sensors together for a massive field of view.

Figure: Supported Platforms of DFRobot 8×8 64-Pixel Matrix ToF Sensor

Expandable Platform for Advanced Development

In addition to plug-and-play use, the 64-Pixel Matrix ToF Vision Sensor can serve as a flexible development platform. Its onboard RP2040 processor allows developers to load custom firmware or run lightweight machine learning models (TinyML), making it possible to recognize specific gestures, detect movement patterns, or add new features directly on the sensor itself. With open-source schematics and comprehensive documentation, the module can be tailored for advanced robotics, IoT, and AI-driven applications, offering far more than a fixed-function sensor.

Figure: DFRobot 8×8 64-Pixel Matrix ToF Sensor onboard RP2040 processor

Version Update & Mixed Shipment Notification

Please Note:This product is currently undergoing a version upgrade to meet enhanced safety standards and improve firmware stability. During this transition period, new and old versions will be shipped randomly.

Update Details:

• Hardware Upgrade (Eco-friendly & Safe):To comply with EN71 standards, the original yellow copper spacers and silver/copper thumb screws have been upgraded to black aluminum versions. This change significantly reduces lead content, making the component more environmentally friendly and safer to handle.
• Firmware Upgrade (V1.3):The firmware has been updated from V1.2 to V1.3. This update resolves a bug where invalid distance values would remain fixed (unchanged) when the target exceeded the measurement range.

Figure: Hardware Upgrade of Gravity: 8*8 64-Pixel Matrix Time-of-Flight (ToF) Sensor

Applications

• Robotics Navigation: Smooth obstacle avoidance and drop-off detection.
• Gesture Control: Reliable contactless interaction for smart devices.
• Interactive Installations: Artistic displays such as following eyes or reactive lighting.
• Smart Automation: Directional entryway monitoring and intelligent room sensing.

Specification:

Sensor Parameters

• Sensor Model: VL53L7CX
• Algorithm Processing MCU: RP2040
• Number of Matrices: 88, totaling 64 ranging points
• Ranging Mode: Continuous Ranging
• Ranging Speed: 15Hz – 60Hz
• Ranging Range: 20mm – 3500mm
• Ranging Accuracy:
• Within the range of 20 – 200mm: 11mm for white targets, 12mm for light gray targets, and 12mm for gray targets;
• Within the range of 200 – 3500mm: 5% for white targets, 6% for light gray targets, and 6% for gray targets.
• Ranging Angle: 60 horizontal, 60 vertical, 90 diagonal
• Laser Safety Class: Compliant with Class 1 laser safety standards

Power Supply Parameters

• Operating Voltage: 3.3V – 5V
• Operating Current: Less than 80mA

Data Interface

• Data Interface: I2C/UART/USB
• Interface Type: PH2.0-4P (Gravity Pinout)
• I2C Address: 4 adjustable options: 0x30/0x31/0x32/0x33
• UART Baud Rate: 115200bps (fixed value, non-modifiable)
• Firmware Update: TYPE-C, USB flash drive mode

Shipping List

• Gravity: Matrix Laser Ranging Sensor 1
• PH2.0-4P Connection Cable 1
• Aluminum Alloy Mounting Bracket 1
• Aluminum Alloy Support Bracket 1
• M3 Thumb Screw 4
• M3 Sensor Fixing Screw 2
• M335 Mounting Copper Spacer 2

Documents

• Product Wiki