Description
The TFmini-S is a compact, single-point Time-of-Flight (ToF) laser ranging module from Benewake, designed for precision distance measurement in robotics, drone altitude hold, and industrial automation. It uses a VCSEL laser source and a narrow 2° field of view to achieve a detection range of 0.1m to 12m against a 90% reflectivity target (indoor 0klux), with reduced range of 0.1–7m against 10% reflectivity targets . The module delivers a selectable frame rate of 1–1000Hz via UART (default 100Hz), enabling high-speed data acquisition for dynamic applications . Its compact 42×15×16mm ABS/PC housing weighs only 5g, making it easy to integrate into space- and payload-constrained systems.
Despite its small size, the TFmini-S offers robust performance: ±6cm accuracy from 0.1–6m and ±1% accuracy from 6–12m, with 1cm distance resolution . Power consumption is ≤0.7W with ≤140mA average current, and the module is eye-safe under Class 1 (EN60825) certification . It supports UART communication with LVTTL (3.3V) levels, and the same hardware also supports I2C and I/O modes for added flexibility . The module is well-suited for both individual makers building Arduino-based ranging projects and business purchasers seeking a cost-effective LiDAR solution for volume integration.
Features
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0.1–12m ToF Ranging: Single-point laser distance measurement with 1cm resolution for precise proximity and altitude sensing .
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Adjustable 1–1000Hz Frame Rate (UART): High-speed output for dynamic applications requiring rapid updates; default is 100Hz .
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Compact and Lightweight: 42×15×16mm footprint and 5g weight enable integration into small robots and drones .
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Low Power Consumption: ≤0.7W operation with ≤140mA average current for battery-sensitive designs .
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UART with LVTTL (3.3V) Levels: Directly compatible with 3.3V logic microcontrollers; 5V supply powers the module while communication uses 3.3V levels .
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Eye-Safe Class 1 Laser: VCSEL at 850nm meets EN60825 Class 1 safety requirements .
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Narrow 2° Field of View: Directional measurement minimizes interference from off-axis objects .
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Robust Ambient Light Tolerance: Operates under up to 70klux ambient light conditions .
Technical Specifications
| Parameter | Specification |
|---|---|
| Ranging Range | 0.1–12m @90% reflectivity (indoor 0klux); 0.1–7m @10% reflectivity |
| Accuracy | ±6cm (0.1–6m); ±1% (6–12m) |
| Frame Rate | UART: 1–1000Hz adjustable (default 100Hz) |
| Distance Resolution | 1cm |
| Supply Voltage | 5V ±0.1V |
| Average Current / Power | ≤140mA / ≤0.7W |
| Communication Interface | UART (LVTTL 3.3V); I2C and I/O also supported |
| Dimensions / Weight | 42×15×16mm / 5g ±0.3g |
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