{"product_id":"crucible-robot-car","title":"Crucible — Autonomous Robot Car","description":"\u003ch2\u003eWhat you build\u003c\/h2\u003e\n\u003cp\u003eA 2WD autonomous robot car with line-following, obstacle-avoidance, and Bluetooth remote control. Programmable in C++ via Arduino IDE.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e2WD acrylic chassis (laser-cut, pre-drilled)\u003c\/li\u003e\n  \u003cli\u003e2× TT motors + rubber wheels + caster wheel\u003c\/li\u003e\n  \u003cli\u003eL298N motor driver module\u003c\/li\u003e\n  \u003cli\u003eArduino Uno + USB cable\u003c\/li\u003e\n  \u003cli\u003eHC-SR04 ultrasonic distance sensor\u003c\/li\u003e\n  \u003cli\u003e3× TCRT5000 line-following sensors (digital + analog)\u003c\/li\u003e\n  \u003cli\u003eHC-05 Bluetooth module\u003c\/li\u003e\n  \u003cli\u003eBattery holder for 4× AA (batteries not included)\u003c\/li\u003e\n  \u003cli\u003eJumper wires + screws + spacers\u003c\/li\u003e\n  \u003cli\u003eStep-by-step build guide + 4 example programs (line follow, obstacle avoid, BT remote, manual drive)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTools you need\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eComputer with USB port\u003c\/li\u003e\n  \u003cli\u003eSmall Phillips screwdriver\u003c\/li\u003e\n  \u003cli\u003e4× AA batteries (or rechargeable)\u003c\/li\u003e\n  \u003cli\u003eAndroid phone for Bluetooth remote (optional)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSkill level\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIntermediate to advanced.\u003c\/strong\u003e Soldering required for motor driver connections. Arduino programming (examples provided — modify to learn).\u003c\/p\u003e\n\n\u003ch2\u003eTime to build\u003c\/h2\u003e\n\u003cp\u003e~5 hours total (assembly + wiring + first program).\u003c\/p\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTop speed: ~0.5 m\/s\u003c\/li\u003e\n  \u003cli\u003eBattery life: ~2 hours (with rechargeable 2500mAh AA)\u003c\/li\u003e\n  \u003cli\u003eSensors: ultrasonic (distance), IR line-follow (×3), Bluetooth\u003c\/li\u003e\n  \u003cli\u003eWeight: 0.5 kg (assembled, without batteries)\u003c\/li\u003e\n  \u003cli\u003eDimensions: 18 × 12 × 8 cm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OpenForge","offers":[{"title":"Default Title","offer_id":54620267708745,"sku":"OF-C001","price":109.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1018\/7672\/8137\/files\/C001-robot-car_57401ccd-cd9e-4999-98c7-4f522088e8bb.png?v=1781664885","url":"https:\/\/openforge.me\/products\/crucible-robot-car","provider":"OpenForge","version":"1.0","type":"link"}