{"product_id":"yunshis-sk40-lidar","title":"Yunshis SK40 LiDAR 40m Laser Distance Module, UART TTL 3.3V, USART RS232\/RS485 for Robotics","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eYunshis SK40 LiDAR is a compact laser distance module designed for millimeter-level distance measurement and integration into robotics and automation systems. It supports single-point phase-shift ranging and communicates via UART\/TTL for easy connection to embedded controllers.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSingle-point phase-shift ranging\u003c\/li\u003e\n\u003cli\u003eMillimeter-level distance unit (mm) and 1 mm distance resolution\u003c\/li\u003e\n\u003cli\u003eUART TTL communication (TTL 3.3 V level)\u003c\/li\u003e\n\u003cli\u003eSupported interfaces: USART; RS232\/RS485 (external level conversion module required)\u003c\/li\u003e\n\u003cli\u003eDesigned for high precision, low power consumption, and compact size\u003c\/li\u003e\n\u003cli\u003eKey optical components referenced: laser transmitter, laser receiver, high-quality laser diode, photoelectric chip\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Performance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e0.03 m to 40 m (Reflectivity: 1.0, Ambient Light Intensity: 3 kLux)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eDistance Unit\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eMeasurement Time\u003c\/td\u003e\n\u003ctd\u003e0.3 to 4 seconds (Reflectivity: 1.0, Ambient Light Intensity: 1 kLux)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eMarketing text lists: ±2 mm; technical specification lists: ±3 mm (Reflectivity: 0.2 to 1.0, Ambient Light Intensity: 1 kLux)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eDistance Resolution\u003c\/td\u003e\n\u003ctd\u003e1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eContinuous Measurement Frequency\u003c\/td\u003e\n\u003ctd\u003e3 Hz \/ 20 Hz (Reflectivity: 1.0, Ambient Light Intensity: 1 kLux, Distance: 0.03 m to 10 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eReflectivity Range\u003c\/td\u003e\n\u003ctd\u003e0.02 to 1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Parameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLaser Class\u003c\/td\u003e\n\u003ctd\u003eCLASS-II\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eLaser Power\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1 mW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eLaser Wavelength\u003c\/td\u003e\n\u003ctd\u003eλ = 610 nm to 690 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eSpot Diameter\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 8 mm @ 10 m\u003cbr\u003e\u0026lt; 20 mm @ 20 m\u003cbr\u003e\u0026lt; 40 mm @ 40 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eSpot Distribution Range\u003c\/td\u003e\n\u003ctd\u003eScattered target circle diameter \u0026lt; 100 mm @ 10 m target\u003cbr\u003eScattered target circle diameter \u0026lt; 200 mm @ 20 m target\u003cbr\u003eScattered target circle diameter \u0026lt; 300 mm @ 30 m target\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Parameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower Supply \/ Operating Voltage\u003c\/td\u003e\n\u003ctd\u003eMarketing text lists: DC 3.3 V\u003cbr\u003eDry Battery Version: DC 2.5 to 3.6 V; Recommended 3.3 V\u003cbr\u003eLithium Battery Version: DC 3.5 to 4.2 V; Recommended 4.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent (Dry Battery Version)\u003c\/td\u003e\n\u003ctd\u003eShutdown leakage current \u0026lt; 10 uA @ 3.3 V\u003cbr\u003eStandby current \u0026lt; 30 mA @ 3.3 V\u003cbr\u003eLaser on current \u0026lt; 50 mA @ 3.3 V\u003cbr\u003eContinuous measurement mode \u0026lt; 100 mA @ 3.3 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent (Lithium Battery Version)\u003c\/td\u003e\n\u003ctd\u003eShutdown leakage current \u0026lt; 8 uA @ 4.0 V\u003cbr\u003eStandby current \u0026lt; 30 mA @ 4.0 V\u003cbr\u003eLaser on current \u0026lt; 50 mA @ 4.0 V\u003cbr\u003eContinuous measurement mode \u0026lt; 80 mA @ 4.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Characteristics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBaud Rate\u003c\/td\u003e\n\u003ctd\u003eAuto baud rate version: Default 115200 bps, configurable (9600 to 115200 bps)\u003cbr\u003eFixed baud rate version: Default 115200 bps, customizable (4800, 9600, 19200, 38400, 115200 bps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eCommunication Level\u003c\/td\u003e\n\u003ctd\u003eTTL (3.3 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eSupported Interfaces\u003c\/td\u003e\n\u003ctd\u003eUSART; RS232\/RS485 (external level conversion module required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical \/ Environmental\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e42.00 mm x 17.10 mm x 7.06 mm (L x W x H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4 g ± 0.5 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 40 C (32 to 104 F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-25 to 60 C (-13 to 140 F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eAdditional dimensional callouts\u003c\/td\u003e\n\u003ctd\u003e0.669 inch; 1.614 inch; 42.00 mm; 17.1 mm; 7.06 mm; 16.50 mm; 25.50 mm; 10.50 mm; 6.00 mm; 9.50 mm; 7.60 mm; R1.05 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eCompact size (marketing text)\u003c\/td\u003e\n\u003ctd\u003e41177 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHumanoid robots\u003c\/li\u003e\n\u003cli\u003eQuadruped robots\u003c\/li\u003e\n\u003cli\u003eRobotic arms\u003c\/li\u003e\n\u003cli\u003eExoskeletons\u003c\/li\u003e\n\u003cli\u003eAGV vehicles\u003c\/li\u003e\n\u003cli\u003eARU robots\u003c\/li\u003e\n\u003cli\u003eProduct dimension measurement\u003c\/li\u003e\n\u003cli\u003eBridge and tunnel monitoring\u003c\/li\u003e\n\u003cli\u003eFormation and settlement monitoring\u003c\/li\u003e\n\u003cli\u003eElevator monitoring\u003c\/li\u003e\n\u003cli\u003eMine monitoring\u003c\/li\u003e\n\u003cli\u003eSmart production line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eManuals \/ Drawings\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/Yunshis_SK40_LiDAR-Drawing.pdf?v=1781320328\" rel=\"noopener\" target=\"_blank\"\u003eYunshis SK40 LiDAR Drawing (PDF)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor integration support and pre-sales questions, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Yunshis SK40 LiDAR 40m laser distance module graphic with key specs and UART TTL 3.3V interface\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yunshis-SK40-LiDAR.webp?v=1784285168\"\u003e\u003cp\u003eYunshis SK40 is a compact 40 m laser distance module designed for millimeter-level ranging and simple UART TTL (3.3 V) integration.\u003c\/p\u003e\n\u003cimg alt=\"Angled close-up of the SK40 laser distance module PCB and optical housing for industrial-grade ranging\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yunshis-SK40-LiDAR_664e6be9-5e48-4ce7-b3c6-557131c33ca6.webp?v=1784285175\"\u003e\u003cp\u003eAn industrial-grade build focused on high precision, low power consumption, and compact size for embedded robotics projects.\u003c\/p\u003e\n\u003cimg alt=\"SK40 laser distance module promo with two module views and robotics application illustration\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yunshis-SK40-LiDAR_e7ea9036-a4d7-43e7-98a2-c017fcb9fa71.webp?v=1784285183\"\u003e\u003cp\u003eSingle-point phase-shift ranging makes the SK40 a practical distance sensor for robotics and automation control loops.\u003c\/p\u003e\n\u003cimg alt=\"Component callouts on SK40 module identifying laser transmitter, laser receiver, laser diode, and photoelectric chip\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yunshis-SK40-LiDAR_367329ae-0cf9-489c-b5f6-4f8439d49131.webp?v=1784285189\"\u003e\u003cp\u003eKey optical and sensing components include the laser transmitter\/receiver, a high-quality laser diode, and a photoelectric chip.\u003c\/p\u003e\n\u003cimg alt=\"SK40 module size drawing with dimensions labeled in inches alongside a front view of the assembled PCB module\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yunshis-SK40-LiDAR_35479060-da1f-4df1-882c-266c782d37c7.webp?v=1784285196\"\u003e\u003cp\u003eA small footprint helps the module fit inside tight enclosures while keeping the optical head aligned for stable measurements.\u003c\/p\u003e\n\u003cimg alt=\"Application scenarios collage for laser distance module: dimensions, bridge\/tunnel, settlement, elevator, mine, production line\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yunshis-SK40-LiDAR_69269f33-e61a-402a-afc1-8e3ddf59a92c.webp?v=1784285203\"\u003e\u003cp\u003eCommon use cases include dimension measurement, infrastructure monitoring, elevator monitoring, mine monitoring, and smart production lines.\u003c\/p\u003e\n\u003cimg alt=\"SK40 module structure dimension diagram with multiple orthographic views and millimeter measurements for mounting\/layout\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Yunshis-SK40-LiDAR_05a88108-27e4-410a-a9e5-d8eb4eea3788.webp?v=1784285210\"\u003e\n\u003c\/div\u003e","brand":"Yunshis","offers":[{"title":"UART TTL \/ 0.03-40m","offer_id":53433809207520,"sku":"Yunshis_SK40_053086-1","price":73.75,"currency_code":"USD","in_stock":true},{"title":"UART TTL \/ 0.03-60m","offer_id":53433809240288,"sku":"Yunshis_SK40_053086-2","price":105.0,"currency_code":"USD","in_stock":true},{"title":"TTL to USB adapter board \/ 0.03-40m","offer_id":53433809273056,"sku":"Yunshis_SK40_053086-3","price":80.0,"currency_code":"USD","in_stock":true},{"title":"TTL to USB adapter board \/ 0.03-60m","offer_id":53433809305824,"sku":"Yunshis_SK40_053086-4","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/Yunshis-SK40-LiDAR-40m-Laser-Distance-Module-UART-TTL-33V.jpg?v=1784285362","url":"https:\/\/rcdrone.top\/pl\/products\/yunshis-sk40-lidar","provider":"RCDrone","version":"1.0","type":"link"}