{"product_id":"yahboom-self-balancing-chassis-kit","title":"Self-balancing Robot Car Chassis Kit for STM32 Projects, 4x 520 Encoder Gear Motors, 2mm Metal Base","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSelf-balancing Robot Car Chassis Kit\u003c\/strong\u003e for building and upgrading a two-wheel self-balancing robot car platform. The kit combines a rigid metal chassis with multiple expansion mounting holes, a closed battery protection box, an upper acrylic expansion platform, and 520 encoder reduction motors for robotics education, DIY builds, and smart car competition projects.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2mm thick metal bottom plate\u003c\/strong\u003e for sturdy support and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom plate integrated design with motor bracket\u003c\/strong\u003e to simplify installation and adapt to 520 motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple expansion mounting holes\u003c\/strong\u003e to support add-on modules (examples shown: K210 vision module, 4-channel tracking module, PS2 handle receiver, CCD camera module, electromagnetic tracking module, driver board, operational amplifier module, anti-collision copper columns).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpper acrylic expansion platform\u003c\/strong\u003e made of \u003cstrong\u003e3mm thick acrylic plate\u003c\/strong\u003e, with mounting holes reserved (including lidar mounting holes).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosed battery protection box\u003c\/strong\u003e designed to help lower the center of gravity and protect the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e520 encoder reduction motors\u003c\/strong\u003e with AB phase incremental Hall encoder feedback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e65mm wear-resistant rubber tires\u003c\/strong\u003e (anti-skid type indicated).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor product selection and build\/compatibility questions, contact \u003ca href=\"https:\/\/rcdrone.top\/\" target=\"_blank\" rel=\"noopener\"\u003ehttps:\/\/rcdrone.top\/\u003c\/a\u003e or email \u003ca href=\"mailto:support@rcdrone.top\"\u003esupport@rcdrone.top\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ch3\u003eChassis \/ Structure\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBottom plate\u003c\/th\u003e\n\u003ctd\u003e2mm thick metal bottom plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUpper platform\u003c\/th\u003e\n\u003ctd\u003e3mm thick acrylic plate (upper acrylic expansion platform)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery box\u003c\/th\u003e\n\u003ctd\u003eClosed battery protection box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTires\u003c\/th\u003e\n\u003ctd\u003e65mm wear-resistant rubber tires (anti-skid)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eMotor (520 encoder reduction motor)\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor model\u003c\/th\u003e\n\u003ctd\u003eMD520Z30_12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor rated voltage\u003c\/th\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor type\u003c\/th\u003e\n\u003ctd\u003ePermanent magnet brush\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGear set reduction ratio\u003c\/th\u003e\n\u003ctd\u003e1:30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current\u003c\/th\u003e\n\u003ctd\u003e0.3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStall current\u003c\/th\u003e\n\u003ctd\u003e3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated power\u003c\/th\u003e\n\u003ctd\u003e≤4W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput shaft\u003c\/th\u003e\n\u003ctd\u003eD-type eccentric shaft with 6mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStall torque\u003c\/th\u003e\n\u003ctd\u003e4.8kg*cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated torque\u003c\/th\u003e\n\u003ctd\u003e3.3kg*cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed before deceleration\u003c\/th\u003e\n\u003ctd\u003e11000rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed after deceleration\u003c\/th\u003e\n\u003ctd\u003e333±10rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSingle motor weight\u003c\/th\u003e\n\u003ctd\u003e150g±1g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEncoder type\u003c\/th\u003e\n\u003ctd\u003eAB phase incremental Hall encoder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEncoder supply voltage\u003c\/th\u003e\n\u003ctd\u003e3.3V-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMagnetic loop number\u003c\/th\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInterface type\u003c\/th\u003e\n\u003ctd\u003ePH2.0 6Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003ctd\u003eBuilt-in pull-up shaping, the microcontroller can directly read the signal pulse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eEncoder Output (description)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePhase difference between the two signals: \u003cstrong\u003e100°\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eMotor rotation direction can be determined based on the order of the two signals.\u003c\/li\u003e\n\u003cli\u003eTravel distance can be calculated based on the number of signal pulses per unit time and the tire circumference.\u003c\/li\u003e\n\u003cli\u003eIf only AB phase pulses per unit time are detected, motor speed can also be measured.\u003c\/li\u003e\n\u003cli\u003eExample (1:30 reduction ratio): motor outputs \u003cstrong\u003e11 pulses\u003c\/strong\u003e per single-phase rotation; maximum output per output shaft rotation: \u003cstrong\u003e(30*11*4)=1320 counts\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEncoder Parameters\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eHall encoder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEncoder line number\u003c\/th\u003e\n\u003ctd\u003e11ppr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eMagnetic induction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower supply range\u003c\/th\u003e\n\u003ctd\u003e3.3~5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEncoder protection\u003c\/th\u003e\n\u003ctd\u003eExposed (magnetic encoder is more stable and does not require a back cover)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitable MCU\u003c\/th\u003e\n\u003ctd\u003eAlmost all microcontrollers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eMotor Wiring (PH2.0 6Pin)\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePin 1\u003c\/th\u003e\n\u003ctd\u003eMotor power supply line+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePin 2\u003c\/th\u003e\n\u003ctd\u003eMotor power supply line-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePin 3\u003c\/th\u003e\n\u003ctd\u003eSensor signal-negative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePin 4\u003c\/th\u003e\n\u003ctd\u003eSensor signal-positive 3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePin 5\u003c\/th\u003e\n\u003ctd\u003eSensor signal line-B phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePin 6\u003c\/th\u003e\n\u003ctd\u003eSensor signal line-A phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSelf-balancing robot car chassis (metal base plate)\u003c\/li\u003e\n\u003cli\u003e520 high-power motors (4PCS)\u003c\/li\u003e\n\u003cli\u003eBattery protection box (closed type)\u003c\/li\u003e\n\u003cli\u003eTires (2PCS, 65mm rubber)\u003c\/li\u003e\n\u003cli\u003eAcrylic top cover \/ upper acrylic expansion platform\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e A \u003cstrong\u003e12.6V lithium battery pack\u003c\/strong\u003e is referenced for installation in the battery box, but it is marked as \u003cstrong\u003enot included\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRobotics education and STEM training platforms\u003c\/li\u003e\n\u003cli\u003eDIY self-balancing robot car builds (STM32 self-balancing robot car projects shown as an example ecosystem)\u003c\/li\u003e\n\u003cli\u003eSmart car competition projects requiring modular expansion and sensor mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit.jpg?v=1782248518\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_aa9c7ecc-1896-4f80-892c-ec30212ad37e.jpg?v=1782248524\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_c5571730-a07f-450b-ae0c-d51e3c4b1ce4.jpg?v=1782248529\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_95334c8e-5176-4fbe-81d1-dd3c9d84720a.jpg?v=1782248535\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_5358356c-6836-4776-b055-4c3bc331077d.jpg?v=1782248541\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_03050b37-5e99-4b70-9a83-2d7276744dbd.jpg?v=1782248547\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_5a14799d-1135-4fdb-bfe9-aaaaf8a58023.jpg?v=1782248552\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_efb7838c-6d1c-4f14-81f6-113982ff4186.jpg?v=1782248558\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_a4a8776b-cd9f-42f8-abd0-ce741ce31292.jpg?v=1782248564\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_d49282a5-e080-4e45-9833-12af02a61fcf.jpg?v=1782248570\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_3fe5e23f-2ccc-4d79-9deb-612c5d0baf4f.jpg?v=1782248576\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_7468e3d5-fcb7-4770-8fa5-4021e440883c.jpg?v=1782248582\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_9ca9413f-72b7-4571-a0fe-70f4dfa72176.jpg?v=1782248589\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit.webp?v=1782248594\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_ed1520f0-c0f8-495e-9a10-28348aee0295.jpg?v=1782248600\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_892b753b-9766-4770-898b-8052fadf44cf.webp?v=1782248605\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_fe4324cb-1b71-4da5-8460-594387e03f3e.jpg?v=1782248611\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_93ae275d-7be6-4794-b12c-0fd6bd674227.webp?v=1782248616\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_8927f040-7966-4392-b6f0-7ad5f97a2ab7.jpg?v=1782248621\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_2a7ed7ee-e405-4ec8-b95b-5b74f2068882.webp?v=1782248626\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_b488917e-6803-4ae9-bdf1-dda127399212.jpg?v=1782248632\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_0957d017-76b1-49e5-a208-51cb73b1d880.webp?v=1782248637\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_49a4172b-a10f-461a-af20-d524bbe5b794.jpg?v=1782248643\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_58216c63-1dd5-4773-b2f6-741f99457e2f.jpg?v=1782248649\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_ec176776-d99b-4f54-8414-48acf674a183.jpg?v=1782248655\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_8a4a830a-a6ad-4d15-909a-95c95586157c.jpg?v=1782248661\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_6fa8df4a-8bee-4845-a42c-c7dbc0d51e60.jpg?v=1782248668\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_e0ce790c-d27a-4aca-aaf9-a66d239ef1e9.jpg?v=1782248673\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_5fd5dfd4-483c-4a09-be57-d9f031e4c634.jpg?v=1782248679\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_5e9534de-8263-47da-a6af-6d8358d77b83.jpg?v=1782248685\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\u003cimg src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Self-balancing-Robot-Car-Chassis-Kit_33b0a380-94b5-4336-b543-6fbaae781de8.jpg?v=1782248690\" loading=\"lazy\" alt=\"Self-balancing Robot Car Chassis Kit\"\u003e\n\u003c\/div\u003e","brand":"Yahboom","offers":[{"title":"Default Title","offer_id":53136707027168,"sku":"6000400499-1","price":87.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/Chassis_Kit_Yahboom_01.jpg?v=1782131260","url":"https:\/\/rcdrone.top\/hi\/products\/yahboom-self-balancing-chassis-kit","provider":"RCDrone","version":"1.0","type":"link"}