This is a TOF-based (time of flight) laser ranging sensor with embedded MCU and ranging algorithm, which is capable of offering up to 40m measuring range, and ±3cm accuracy. It supports UART or I2C communication bus, features longer measuring distance and higher light interference tolerance capability due to its ultra narrow FOV, suitable for either indoor or outdoor condition. And its ambient light tolerance is up to 100K LUX.This sensor can be widely used in applications like common distance measuring, robot obstacle avoidance / route planning, as well as drone altitude setting / ceiling detection, and more… TOF Laser Range Sensor (C)25m measuring range SpecificationsModelTOF Laser Range Sensor (D)Typical measuring range0.05m ~ 40.0mTypical measuring accuracy0.05m ~ 40m ±3cmWavelength905nmField of view (FOV)1° ~ 2°Communication interfaceDefault: UART (3.3V TTL signal level)I2C (cascading support, the slave address is 0x08+module ID)complementary I/O level output (distance parameter is not available in this mode)BaudrateUART: 4.8Kbps ~ 3000Kbps (921.6Kbps by default)I2C: up to 400KbpsPower supply4.3 ~ 5.2VPower consumption250mW (UART active output, 5.0V power supply, 50mA current)Weight7.7gOperating temperature-10°C ~ 60°CDimensions22.7mm × 28mm × 13.6mm (L × W × H) Cost effective solutionlong range low cost ranging modulehigh stability, high accuracy, high sensitivity ranging UART / I2C / IO communication supportUART mode: supports active query outputI2C mode: up to 8x cascadesI/O mode: unable to output distance parameter Applications Hydraulic Stacking DetectionHardware connectionConnecting with Raspberry Pi (via I2C) Connecting with Raspberry Pi (via UART) Connecting with Raspberry Pi (via I/O pins) Outline Dimensions What’s in the box?1 x TOF Laser Range Sensor (D)1 x GH1.25 4PIN cable1 x GH1.25 4PIN squid cableResourceswww.waveshare.com/wiki/TOF_Laser_Range_Sensor_(C)