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Infrared distance sensor TFmini by Adafruit Industries 3978 with high sensitivity and fast detection

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Infrared distance sensor TFmini by Adafruit Industries 3978 with high sensitivity and fast detection

Linear Range : 30cm~1200cm

Voltage - Supply : 5V

Description : 30cm~1200cm Angle, Linear Position Measuring RoHS

Mfr. Part # : 3978

Model Number : 3978

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TFmini Infrared Module

Product Overview

The TFmini is a compact and high-performance infrared distance sensor based on Time of Flight (ToF) technology. It integrates unique optical and electrical designs to deliver stable, precise, high-sensitivity, and high-speed distance detection. With its robust operating range, low power consumption, and UART communication interface, the TFmini is ideal for applications such as drone altitude holding and terrain following, machine control and safety sensing, and robot distance detection.

Product Attributes

Brand: Benewake (Beijing) Co. Ltd.
Technology: ToF (Time of Flight)
Communication Interface: UART

Technical Specifications

Specification	Value	Unit
Product Name	TFmini
Operating Range	0.3-12	m
Max Operating Range (10% reflectivity)	5	m
Average Power Consumption	0.12	W
Applicable Voltage Range	4.5-6	V
Acceptance Angle	2.3
Minimum Resolution Ratio	5	mm
Test Frequency	100	Hz
Test Accuracy	1% (less than 6m), 2% (6m-12m)
Distance Detection Unit	mm
Operating Center Wavelength	850	nm
Size	42x15x16	mm
Operating Temperature	-20 to 60
Anti-ambient Light	70,000	lux
Weight	6.1	g
Input Voltage (Typical)	5	V DC
Average Power (Max)	120	mW
LED Peak Current	800	mA
Serial Port TTL Voltage Level	3.3	V
Signal Acceptance Angle ()	2.3	Degree
Resolving Power (Object size at 2m)	20	mm
Resolution Ratio (Sensitivity to distance change)	5	mm
UART Baud Rate	115200
UART Data Bit	8
UART Stop Bit	1
UART Parity Bit	0

Application Notice

This product is a custom precision optical instrument and must be maintained by Benewake engineers.
Prevent dust or any other foreign matter from entering the lens, as it may affect light transmission.

2411220218_Adafruit-Industries-3978_C17486441.pdf

Infrared distance sensor TFmini by Adafruit Industries 3978 with high sensitivity and fast detection Images

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