{"title":"Robots","description":null,"products":[{"product_id":"keyestudio-upgraded-4wd-bt-multi-purpose-smart-car-v2-0-for-arduino-robot-kit-programming-diy-robot-car","title":"Keyestudio Upgraded 4WD BT Multi-purpose Smart Car V2.0 for Arduino Robot Kit Programming DIY Robot Car","description":"\u003ch2\u003eWhat you can build\u003c\/h2\u003e\u003cp\u003eAn upgraded 4WD multi-purpose smart car for Arduino. Build a robot that can avoid obstacles, follow a line or object, and be controlled by IR remote or Bluetooth app, with facial expressions on display.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eObstacle avoidance, following, IR remote control and Bluetooth control\u003c\/li\u003e\n\u003cli\u003eConfined-area and gravity control modes, plus facial emoticon display\u003c\/li\u003e\n\u003cli\u003eNo soldering required, assembled with screws and copper pillars\u003c\/li\u003e\n\u003cli\u003eExpandable with other sensors through the motor driver expansion board\u003c\/li\u003e\n\u003cli\u003e17 learning projects, from simple to complex, in Arduino C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorking voltage: 5V; Input voltage: 6-9V\u003c\/li\u003e\n\u003cli\u003eMaximum output current: 2A; Maximum power dissipation: 25W\u003c\/li\u003e\n\u003cli\u003eMotor: 5V, 200 rpm; Motor driver: DRV8833\u003c\/li\u003e\n\u003cli\u003eUltrasonic: angle under 15 degrees, detection distance 2-400 cm\u003c\/li\u003e\n\u003cli\u003eIR remote control distance: 10 m (measured); Bluetooth control distance: 50 m (measured)\u003c\/li\u003e\n\u003cli\u003eControls: IR remote, iOS and Android app\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCore wiring\u003c\/h2\u003e\u003cp\u003eStack the 8833 motor driver expansion board on the Keyestudio V4.0 board (Arduino Uno compatible, ATmega328P, 14 digital I\/O, 6 PWM, 6 analog inputs). The expansion board provides PH2.0 interfaces for ultrasonic, analog, three-channel line tracking, Bluetooth and motors, plus an integrated IR receiver. Connect the battery to the BAT port and switch the DIP switch to ON.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLeft motors (group B): direction D2, speed PWM D5\u003c\/li\u003e\n\u003cli\u003eRight motors (group A): direction D4, speed PWM D6\u003c\/li\u003e\n\u003cli\u003eUltrasonic HC-SR04: VCC to 5V, Trig to D12, Echo to D13, GND to G\u003c\/li\u003e\n\u003cli\u003eMotors A\/A1 and B\/B1 are wired in parallel in pairs; if the two motors in a pair turn in opposite directions, adjust the jumper caps beside the motor terminals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCode and tutorials\u003c\/h2\u003e\u003cp\u003eArduino IDE and KidsBlock tutorials are both available, 17 projects in each route: LED Blink, Adjust LED Brightness, Line Tracking Sensor, Servo Control, Ultrasonic Sensor, IR Reception, Bluetooth Remote Control, Motor Driving and Speed Control, Facial Expression LED Board, Restricting Smart Car, Line Tracking Smart Car, Ultrasonic Following Smart Car, Ultrasonic Obstacle Avoidance Smart Car, IR Remote Control Smart Car, Bluetooth Control Smart Car, Bluetooth Speed Control Smart Car, Multi-purpose Bluetooth Smart Car.\u003c\/p\u003e\u003cp\u003eHow the code works, in brief: the ultrasonic test sends a 10 microsecond trigger pulse, measures the echo time, and converts it to distance; the motor test drives forward, back, left, right and stop for 2 seconds each. For the ultrasonic test, open the serial monitor at 9600 baud and move your hand in front of the sensor to see the distance change. Full code and wiring diagrams are in the official documentation, linked below.\u003c\/p\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cp\u003eV4.0 board, 8833 motor driver expansion board, Bluetooth module, red LED module, ultrasonic sensor, line tracking sensor, 8x16 LED board, servo, IR remote, USB cable, 18650 and 6xAA battery holders, cradle head, acrylic and top\/base boards, 4 motors and 4 wheels, screws, copper pillars and tracking runway.\u003c\/p\u003e\u003ch2\u003eLearn more\u003c\/h2\u003e\u003cp\u003eOriginal product page: https:\/\/www.keyestudio.com\/products\/keyestudio-upgraded-4wd-bt-multi-purpose-smart-car-v20-for-arduino-robot-kit-programming-diy-robot-car\u003cbr\u003eDocumentation: https:\/\/docs.keyestudio.com\/projects\/KS0559\/en\/latest\/\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63184704602193,"sku":"KS0559","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/5f229abaeb.gif?v=1793004232"},{"product_id":"keyestudio-microbit-robot-mini-smart-robot-car-stem-robot-kit-v2-0-without-microbit-main-board","title":"Keyestudio Microbit Robot Mini Smart Robot Car STEM Robot Kit V2.0 Without Microbit Main Board","description":"\u003ch2\u003eWhat you can build\u003c\/h2\u003e\u003cp\u003eA micro:bit robot mini smart car for STEM learning. Build a car that can avoid obstacles, follow a line, and be controlled by IR remote or Bluetooth.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eObstacle avoidance and line tracking\u003c\/li\u003e\n\u003cli\u003eIR remote and Bluetooth control\u003c\/li\u003e\n\u003cli\u003eFor micro:bit STEM education\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eImportant note\u003c\/h2\u003e\u003cp\u003eThis listing is for the car kit without the micro:bit main board. A micro:bit board is required separately to run the car.\u003c\/p\u003e\u003ch2\u003eWiring and code\u003c\/h2\u003e\u003cp\u003eInsert the micro:bit board into the slot of the V2 shield, place batteries in the holder, and dial the power switch to ON. Program it in the online MakeCode editor, adding the turtle-bit extension first. The motor driver shield uses PCA9685 and TB6612 chips to drive two DC gear motors, saving I\/O pins. Check the direction of the eight jumper caps before running, as they set the motor rotation direction to match the code.\u003c\/p\u003e\u003cp\u003eLine tracking: the V2 expansion board carries two TCRT5000 line tracking sensors, left and right controlled by P12 and P13. White ground reflects IR and reads low (0); black line reads high (1). Adjust the potentiometers on the shield for sensitivity, using the D2 and D6 indicators as a reference. In MakeCode, the car is driven with turtle-bit blocks such as car run forward, turn left\/right and car stop, at a speed percentage.\u003c\/p\u003e\u003ch2\u003eLearn more\u003c\/h2\u003e\u003cp\u003eOriginal product page: https:\/\/www.keyestudio.com\/products\/keyestudio-microbit-robot-mini-smart-robot-car-stem-robot-kit-v20-without-microbit-main-board-1\u003cbr\u003eMakeCode tutorial (KS4014-KS4024 series): https:\/\/docs.keyestudio.com\/projects\/KS4014-KS4024\/en\/latest\/makecode\/makecode.html\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63184723214417,"sku":"KS4019","price":54.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/3978f86a10.jpg.240x240.webp?v=1793004251"},{"product_id":"keyestudio-micro-bit-mini-smart-turtle-robot-car-for-stem-micro-bit-robot-without-micro-bit","title":"Keyestudio Micro：bit Mini Smart Turtle Robot Car for STEM Micro Bit Robot Without Micro Bit","description":"\u003ch2\u003eWhat you can build\u003c\/h2\u003e\u003cp\u003eA small micro:bit turtle robot car for STEM education. A compact starter robot for learning programming and electronics.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompact size: 120 x 120 x 120 mm\u003c\/li\u003e\n\u003cli\u003eFor micro:bit STEM education\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eImportant note\u003c\/h2\u003e\u003cp\u003eThis listing is for the car kit without the micro:bit main board. A micro:bit board is required separately to run the car.\u003c\/p\u003e\u003ch2\u003eWiring and code\u003c\/h2\u003e\u003cp\u003eInsert the micro:bit board into the slot of the V2 shield, place batteries in the holder, and dial the power switch to ON. Program it in the online MakeCode editor, adding the turtle-bit extension first. The motor driver shield uses PCA9685 and TB6612 chips to drive two DC gear motors. Check the direction of the eight jumper caps before running, as they set the motor rotation direction to match the code.\u003c\/p\u003e\u003cp\u003eLine tracking: the V2 expansion board carries two TCRT5000 line tracking sensors, left and right controlled by P12 and P13. White ground reflects IR and reads low (0); black line reads high (1). Adjust the potentiometers on the shield for sensitivity. In MakeCode, the car is driven with turtle-bit blocks such as car run forward, turn left\/right, left-side and right-side motor control, and car stop, at a speed percentage. IR remote and WS2812 RGB lights are covered in the same tutorial series.\u003c\/p\u003e\u003ch2\u003eLearn more\u003c\/h2\u003e\u003cp\u003eOriginal product page: https:\/\/www.keyestudio.com\/products\/keyestudio-micro%EF%BC%9Abit-mini-smart-turtle-robot-car-for-stem-microbit-robot-\u003cbr\u003eMakeCode tutorial (KS4014-KS4024 series): https:\/\/docs.keyestudio.com\/projects\/KS4014-KS4024\/en\/latest\/makecode\/makecode.html\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63184731078737,"sku":"ks4014","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/7826c7bf14.gif?v=1793004253"},{"product_id":"keyestudio-mini-caterpillar-tank-robot-v3-0-for-arduino-kit-robot-car-diy-programmable-stem-toys","title":"Keyestudio Mini Caterpillar Tank Robot V3.0 For Arduino Kit Robot Car DIY Programmable STEM Toys","description":"\u003cp\u003eRobot kit from Keyestudio. 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Original product page: https:\/\/www.keyestudio.com\/products\/keyestudio-4wd-mecanum-robot-car-for-arduino-stem-smart-diy-robot-car-kit\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63205390843985,"sku":null,"price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/9b0351bf5a.gif.500x500.gif?v=1793059457"},{"product_id":"keyestudio-smart-little-turtle-robot-car-v3-0-for-arduino-stem-programable-robot-kit","title":"Keyestudio Smart Little Turtle Robot Car V3.0 for Arduino STEM Programable Robot Kit","description":"\u003cp\u003eRobot kit from Keyestudio. Original product page: https:\/\/www.keyestudio.com\/products\/keyestudio-smart-little-turtle-robot-car-v30-for-arduino-stem-programable-robot-kit\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63205393236049,"sku":null,"price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/426ebce604.gif.500x500.gif?v=1793059464"},{"product_id":"keyestudio-self-balancing-car-kit-for-arduino-robot-kit","title":"keyestudio Self-balancing Car Kit For Arduino Robot Kit","description":"\u003cp\u003eRobot kit from Keyestudio. Original product page: https:\/\/www.keyestudio.com\/products\/keyestudio-self-balancing-car-kit-for-arduino-robot-kit\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63205393432657,"sku":null,"price":67.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/bee68e3a82.gif.500x500.gif?v=1793059473"},{"product_id":"keyestudio-4df-mechanical-ps2-joystick-metallic-robot-arm-learning-starter-kit-v2-0-for-arduino-diy","title":"Keyestudio 4DF Mechanical PS2 Joystick Metallic Robot Arm Learning Starter Kit V2.0 for Arduino DIY","description":"\u003cp\u003eRobot kit from Keyestudio. Original product page: https:\/\/www.keyestudio.com\/products\/keyestudio-4df-mechanicals2-joystick-metallic-robot-arm-learning-starter-kit-v20-for-arduino-diy\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63205395824721,"sku":null,"price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/e7627ac894.gif.500x500.gif?v=1793059481"},{"product_id":"keyestudio-diy-mini-tank-v2-0-smart-robot-car-kit-for-arduino-stem","title":"Keyestudio DIY Mini Tank V2.0 Smart Robot car kit for Arduino STEM","description":"\u003cp\u003eRobot kit from Keyestudio. Original product page: https:\/\/www.keyestudio.com\/products\/keyestudio-diy-mini-tank-v20-smart-robot-car-kit-for-arduino-stem\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63205395857489,"sku":null,"price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/4f3b0dc1c8.jpg.500x500.jpg?v=1793059487"},{"product_id":"keyestudio-diy-4-dof-robot-kit-frog-robot-for-arduino-nano-graphical-programming-support-ios-android-app-control","title":"Keyestudio DIY 4-DOF Robot Kit Frog Robot for Arduino Nano Graphical Programming\/Support IOS \u0026Android APP Control","description":"\u003cp\u003eRobot kit from Keyestudio. Original product page: https:\/\/www.keyestudio.com\/products\/new-keyestudio-diy-4-dof-robot-kit-frog-robot-for-arduino-nano-graphical-programming-support-ios-ampampandroid-app-control\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63205395890257,"sku":null,"price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/a7cd684711.gif.500x500.gif?v=1793059494"},{"product_id":"keyestudio-desktop-drawing-robot-writing-robot-drawbot-drawing-machine-handwriting-machine-for-arduino-diy","title":"keyestudio Desktop drawing robot Writing Robot Drawbot Drawing Machine Handwriting Machine for Arduino DIY","description":"\u003cp\u003eRobot kit from Keyestudio. Original product page: https:\/\/www.keyestudio.com\/products\/keyestudio-desktop-drawing-robot-writing-robot-drawbot-drawing-machine-handwriting-machine-for-arduino-diy\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63205400641617,"sku":null,"price":105.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/fd3affc9e9.gif.500x500.gif?v=1793059500"},{"product_id":"keyestudio-beetlebot-3-in-1-robot-for-arduino-stem-education","title":"Keyestudio Beetlebot 3 in 1 Robot for Arduino STEM Education","description":"\u003cp\u003eRobot kit from Keyestudio. 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Original product page: https:\/\/www.keyestudio.com\/products\/keyestudio-4wd-mechanical-arm-robot-smart-car-for-arduino-robot-support-android-ampampios-674\u003c\/p\u003e","brand":"Keyestudio","offers":[{"title":"Default Title","offer_id":63205408112721,"sku":null,"price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1087\/1819\/4769\/files\/18be99d012.gif.500x500.gif?v=1793059521"},{"product_id":"keyestudio-desktop-mini-bluetooth-smart-robot-car-kit-v3-0-for-arduino-robot-stem-support-mixly-blocks-coding","title":"Keyestudio Desktop Mini Bluetooth Smart Robot Car Kit V3.0 for Arduino Robot STEM\/Support Mixly blocks coding","description":"\u003cp\u003eRobot kit from Keyestudio. 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