Version: A00 Document No.: SJ-GU-TFmini-01 Page 1 of 10 TFmini Infrared Module Specification Benewake (Beijing) Co. Ltd. www.benewake.com Benewake (Beijing) Co. Ltd.
Version: A00 Document No.: SJ-GU-TFmini-01 Page 2 of 10 Preface Dear users: Hello! Thank you for choosing the products from Benewake (Beijing) Co. Ltd. The manual is prepared to help you to use correctly our company’s products. Before you install and use this product in the first time, please be sure to carefully read the information attached with the product, which will help you to use the product better.
Version: A00 Document No.: SJ-GU-TFmini-01 Page 3 of 10 Table of Contents 1. Main Product Characteristics 4 2. Optical Principle 4 3. Electrical Characteristics 5 4. Optical Characteristics 5 5. Measurement Range and Acceptance Angle 5 6. Serial Port Data Communication Protocol and Line Sequence 7 6.1 Standard Data Format of Serial Port 7 6.2 Line sequence description 8 7. Interface Description of Serial Port Upper Computer 8 8. Product Size Specifications 9 9.
Version: A00 1. Document No.: SJ-GU-TFmini-01 Page 4 of 10 Main Product Characteristics This product is based on ToF (Time of Flight) principle and integrated with unique optical and electrical designs, so as to achieve stable, precise, high sensitivity and high-speed distance detection. Product Name TFmini Operating range 0.3m-12m Maximum operating range at 10% reflectivity 5m Average power consumption 0.12W Applicable voltage range 4.5V-6V Acceptance angle 2.
Version: A00 Document No.: SJ-GU-TFmini-01 Page 5 of 10 converted with the sensor by calculating the time difference or phase difference between the light sending and the light reflection, so as to produce the depth information. Fig. 1 TF_mini optical simulation of the optical path 3. Electrical Characteristics Item Symbol Typical value Unit Input voltage DC 5 V Average power P ≤120 mW LED peak current Imax 800 mA Serial port TTL voltage level VTTL 3.
Version: A00 Document No.: SJ-GU-TFmini-01 Page 6 of 10 The object to be detected has 10% reflectivity and the effective detection distance is 5m; Outside conditions: Under the general sunshine condition (with illumination of lower than 70klux), the effective detection distance is 7m; Under the high sunshine condition in summer (with illumination of above 100klux) or the condition with outdoor black background board, the effective detection distance is 3m.
Version: A00 Document No.: SJ-GU-TFmini-01 Page 7 of 10 Note: The detection range side length is not equal to the object resolution ratio at the corresponding distance. 6.
Version: A00 Byte9 Document No.: SJ-GU-TFmini-01 Page 8 of 10 Checksum parity bit is a low 8-bit, Checksum = Byte1 + Byte2 + ... + Byte8, Checksum is the sum of the first 8 bytes of actual data; here is only a low 8-bit. Table 6 Data encoding format and detailed description 2 6.2 Line sequence description Fig. 4 TF_mini line sequence description TFmini line sequence is shown in “TF_mini line sequence description” in Fig.
Version: A00 Document No.: SJ-GU-TFmini-01 Page 9 of 10 Fig.
Version: A00 Document No.: SJ-GU-TFmini-01 Page 10 of 10 Fig. 6 TF_mini left module size drawing (unit: mm) 9. Application Notice This product is a custom precision optical instrument and must be maintained by our engineers. Prevent dust or any other foreign matter from entering the lens; otherwise it may affect the light transmission. Benewake (Beijing) Co. Ltd.
