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Working Range 2-120 cm, white card

Field of View 25°

Control Interface I2C / UART

DM-DTOF2002C0 2-120 cm SPAD ToF Proximity Sensor Module

Built around the Sharp GP2A03VT00F SPAD sensor and an onboard 8051 MCU, this compact module delivers 2-120 cm white-card ranging through I2C or UART.

Key Highlights

940 nm emitter classified as Class 1 under stated operating conditions
36 ms working cycle with 10 mA current consumption
Advanced optical crosstalk compensation
No additional optical calibration required in the published module specification

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Engineering support

Overview

DM-DToF2002C0 is a compact short-range Time-of-Flight proximity sensor module built around the Sharp GP2A03VT00F ToF sensor and an onboard 8051 MCU. It provides direct distance measurement through I2C or UART for embedded products that need a small 4-pin sensing module.

The published specification lists a 2-120 cm working distance with a white card target, 25° field of view, 36 ms working cycle and 10 mA current consumption from a 3.0-3.6 V supply. At 120 cm with the stated white card target, published measurement accuracy is ±10%.

Its 940 nm emitter, SPAD-based receiver and special optical package are intended to support stable short-range ranging, ambient-light immunity and optical crosstalk control. The published page does not provide ambient-light level, target reflectivity beyond the white-card condition, repeatability, resolution or accuracy across the full range, so these values require application-level verification.

Specification note: A legacy benefits bullet states 0.25-10 cm, while the specification table states 2-120 cm with a white card. This page uses the specification-table value. Confirm the active production revision and test conditions with DOMI before design freeze.

Working Range: 2-120 cm, white card
Field of View: 25°
Control Interface: I2C / UART
Package: 10 × 8 × 7.6 mm

Applications

DM-DToF2002C0 is positioned for embedded proximity and distance measurement where compact mechanics and simple host connectivity are important.

Robot vacuum sensing

Short-range obstacle and wall-distance input
Compact integration near brushes, bumpers or side-looking sensing positions

UAV object monitoring

Near-field object-distance input for unmanned aerial vehicle designs
Evaluation for confined-space or low-altitude proximity monitoring

Smart home devices

User-presence and approach detection at short range
Distance-triggered control in compact connected appliances

Tablets and embedded terminals

Near-user proximity input for display and interaction logic
Small-module distance sensing through an engineered optical window

Technical Specifications

Ranging and optics

Parameter	Published specification
ToF sensor	Sharp GP2A03VT00F
Working distance	2-120 cm, white card target
Measurement accuracy	±10% at 120 cm, white card target
Field of view	25°
Emitter wavelength	940 nm
Working cycle	36 ms

Electrical and control

Parameter	Published specification
Onboard MCU	8051
Supply voltage	3.0-3.6 V
Current consumption	10 mA
Control interface	I2C / UART
Operating temperature	-20 to 70 °C

Mechanical and compliance

Parameter	Published specification
Sensor board package	4 pin
Module dimensions	10 × 8 × 7.6 mm
Laser classification	940 nm emitter classified as Class 1 under the stated operating conditions, IEC 60825-1:2014, third edition
Material compliance	Lead-free and RoHS compliant

Published-data boundary: The source does not state resolution, repeatability, output data format, I2C address, UART baud rate, interface logic levels, startup time, cover-window requirements, storage temperature, EMC data or quantified ambient-light performance. Request the latest datasheet and interface document for production qualification.

Integration Guidance

Host interface and power

Select I2C or UART based on the host architecture, then confirm protocol timing, logic levels, addressing and command format with the current interface document.
Provide a regulated 3.0-3.6 V rail and verify startup, transient current, decoupling and power sequencing on the production PCB.
Budget the 36 ms working cycle against control-loop latency and required update rate.

Optical and mechanical design

Keep the 25° field of view clear of enclosure edges, internal ribs, cables and reflective surfaces.
Evaluate cover-window transmission at 940 nm, air gap, tilt, contamination and internal reflections even though the module includes optical crosstalk compensation.
Recheck range and accuracy using representative black, glossy, angled and low-reflectivity targets, not only a white card.

Production qualification

Confirm that GP2A03VT00F, module firmware and connector pinout match the approved production configuration.
Validate sunlight, artificial lighting, temperature, vibration, EMC and multi-sensor interference in the complete device.
Verify Class 1 laser safety and RoHS documentation for the shipped end product and target market.

FAQs

Does DM-DToF2002C0 measure from 2 cm to 120 cm?

Yes. The published specification lists a 2-120 cm working distance with a white card target. Final usable range depends on target reflectivity, ambient light, cover-window design and installation geometry.

Does DM-DToF2002C0 support both I2C and UART?

Yes. The module is specified with I2C and UART control interfaces, giving embedded designers two common options for connecting it to a host controller.

Does DM-DToF2002C0 use a 940 nm Class 1 emitter?

Yes. The published page states that its 940 nm emitter is classified as Class 1 under the stated operating conditions according to IEC 60825-1:2014, third edition. Laser-safety compliance must still be verified for the complete end product and operating mode.

Is DM-DToF2002C0 suitable for robot vacuum proximity sensing?

Yes. Robot vacuum distance measurement is a listed application. Validate sensor placement, floor and obstacle reflectivity, cover-window crosstalk, sunlight exposure and the required stopping distance in the final robot.

Can DM-DToF2002C0 be used for UAV object monitoring?

Yes. UAV object monitoring is listed as an application direction. The completed airborne system still requires vibration, temperature, optical-window, sunlight, EMC and flight-safety validation.

Does DM-DToF2002C0 include optical crosstalk compensation?

Yes. The published benefits include advanced optical crosstalk compensation and state that no additional optical calibration is required. Test the final cover window and enclosure because system-level reflections can differ from the module test setup.

What supply voltage, current and measurement cycle does DM-DToF2002C0 use?

The module is specified for a 3.0-3.6 V supply, 10 mA current consumption and a 36 ms working cycle. Confirm peak current, startup behavior and interface timing with the latest technical documentation before production release.

What are the package size and field of view of DM-DToF2002C0?

The sensor board is specified as a 4-pin module measuring 10 × 8 × 7.6 mm with a 25° field of view.

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