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Small black rectangular LiDAR module with gold pins and a clear optical window on one end

Seeed Studio

Seeed Studio TFmini S LiDAR Distance Sensor

SKU CH-RY94-HYCA7

range ToF LiDAR measures 0.1–12 m with ±6 cm accuracy up to 6 m and ±1 % beyond, 100 Hz frame rate, I²C or UART output, 5 V supply

  • Product typeSensors
  • Operating range up to 12 m at 90 % reflectivity
  • Accuracy ±6 cm from 0.1 m to 6 m and ±1 % from 6 m to 12 m
  • 100 Hz frame rate for real-time distance updates
  • Dual I2C and UART interfaces for flexible integration
  • Class 1 eye-safe 850 nm VCSEL with 70 klux ambient light immunity

TFmini S LiDAR sensor

The TFmini S is a short-range time-of-flight distance sensor that emits an 850 nm near-infrared VCSEL pulse and measures the phase shift of the returned signal. It delivers a 0.1 m to 12 m operating range at 90 % reflectivity with ±6 cm accuracy up to 6 m and ±1 % beyond, updating at 100 Hz with 5 mm resolution. Developers and robotics hobbyists needing a compact, low-power range finder for indoor or shaded outdoor use will find it suited to obstacle avoidance and proximity tasks.

Selectable I2C and UART interfaces

The module exposes both I2C and UART at LVTTL 3.3 V levels, letting you choose the protocol that matches your host controller without extra level-shifting hardware. A simple TTL-to-USB adapter connects the sensor directly to a PC for immediate data streaming, accelerating prototyping and debugging. No bundled software or drivers are mentioned, so integration relies on standard serial or I2C libraries.

Check power and optical constraints

The sensor requires a stable 5 V ± 0.1 V supply capable of 800 mA peak current, with an average draw of 140 mA and 0.7 W consumption. Its 2 ° field of view and Class 1 photobiological rating mean eye-safe operation but narrow beam coverage. Ambient light immunity reaches 70 klux, yet transparent surfaces such as glass or water can degrade accuracy. Verify your regulator, wiring and mounting environment meet these electrical and optical limits before ordering.

How it compares

Measured against everything we stock in Sensors, Transducers & Thermometers, at today’s prices. Recalculated every night.

Price $72.99
Pricier than about 63% of the 255 comparable items (median $39.99).

Specifications

Product
Product typeSensors

Questions about this item

Will the VCSEL emitter at 850 nm need replacement after long use?

The VCSEL light source is a solid-state emitter with no user-replaceable parts; the module is rated for Class 1 photobiological safety under IEC 60825 and has no specified emitter lifetime.

What limits continuous operation at 100 Hz frame rate?

The 0.7 W average power draw and 140 mA steady current are the primary limits; the 800 mA peak current only occurs in brief pulses during each measurement cycle.

How much heat does the sensor generate when running all day on 5 V?

At 0.7 W typical consumption the unit produces minimal heat and is rated for 0–60 °C ambient operation without active cooling.

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