The LD19 is mainly composed of a laser ranging core, wireless transmission unit, wireless communication unit, angle measuring unit, motor driving unit and mechanical housing. The ranging core adopts DTOF technology to measure 4500 times each second. When operated, the LD19 emits the infrared laser forward, and the laser is reflected to the single photon receiving unit after encountering the target object. Thus, we get both - the time of laser emitting and receiving, and the gap between them is the time of flight. With the light's speed, we can calculate the distance. After receiving distance data, LD19 will combine them with angle value from the angle measurement unit to comprise the points cloud data, then transmit the points cloud data to the external interface via wireless communication. Meanwhile, the external interface provides PWM to allow the motor driving unit to drive the motor. After the external control unit gets the rotational speed, it will reach to specified speed through PID algorithm closed-loop control to ensure the LD19 works stably. The sensor comes with a USB adapter board, USB cable and 4-pin header cable. Check out the product Wiki for more information on how to use this sensor. Features * Based on TOF (Time of Flight) laser ranging technology * Support UART communication * 12m Measuring radius * 30K Lux anti-glare interference * 4500Hz measurement frequency * 360° scanning range * Laser Safety Meets FDA Class 1 Standards * Compact appearance * 10000+ hours service life Specifications Ranging Distance 0.02 ~ 12.00 m Ranging Average Accuracy ±45 mm (within 0.3 ~ 12.00m) Scanning Frequency 5 ~ 13 Hz (Typ 10) Scanning Angle 360° Ranging Frequency 4500 Hz Resolution 15 mm Wavelength 895 ~ 915 nm (Typ 905) Communication Interface UART @ 230400 Ambient Light Resistance 30 KLux Power Supply 5 V Power Consumption ≈ 0.9 W Operating Current 180 mA Weight 47 g Operating Temperature -10°C ~ 40°C Lifetime 10000+ hours Dimensions 54.00 × 46.29 × 34.80mm Package Contents * 1x DTOF LIDAR LD19 * 1x Adapter board * 1x USB cable 50cm * 1x 4-pin cable 100mm Resources * Product Wiki https://elecena.pl/product/22727453/dtof-laser-ranging-sensor-ld19-discontinued 2023-03-07 https://elecena.pl/product/22727453/dtof-laser-ranging-sensor-ld19-discontinued 2023-12-27 https://elecena.pl/product/22727453/dtof-laser-ranging-sensor-ld19-discontinued 2024-09-18 https://elecena.pl/product/22727453/dtof-laser-ranging-sensor-ld19-discontinued 2024-11-29 https://elecena.pl/product/22727453/dtof-laser-ranging-sensor-ld19-discontinued 2024-11-30 https://elecena.pl/product/22727453/dtof-laser-ranging-sensor-ld19-discontinued 2025-11-28 https://elecena.pl/product/22727453/dtof-laser-ranging-sensor-ld19-discontinued 2025-11-29