{"product_id":"micro-bit-friendship-bracelet-radio-kit-secret-messages-between-two-bbc","title":"Micro:bit Friendship Bracelet Radio Kit - Secret Messages Between Two BBC Micro:bits","description":"\u003ch1\u003eMicro:bit Friendship Bracelet Radio Kit — Build a Pair of Wireless Secret-Messaging Devices\u003c\/h1\u003e\n\n\u003cp class=\"value-summary\"\u003eEvery part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.\u003c\/p\u003e\n\n\u003cdiv class=\"specs-strip\"\u003e\n  \u003cspan\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Beginner\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 1-2 hours\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 8-10\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Radio Communication with MicroPython\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eImagine slipping a note to your best friend—without a word. With this kit, two young makers create a pair of BBC micro:bits that beam invisible messages across the room. A simple squeeze of the board’s accelerometer triggers a custom secret symbol or phrase, turning an ordinary electronics project into a digital friendship bracelet. No screens, no keyboards: just a tiny computer, a radio, and the joy of a shared code.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eTwo fully portable micro:bit stations powered by AA batteries. When you squeeze one, a private message—like a heart icon or a pre‑programmed “hello”—flashes on the other. The pair can sit on a desk, clip to a backpack, or be worn as a wristband, always listening for a friend’s squeeze. Kids craft the gesture and the response, making every exchange a secret only they know.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eProgram a micro:bit to detect accelerometer gestures (shake, squeeze, tap)\u003c\/li\u003e\n  \u003cli\u003eSet up radio groups for private 1‑to‑1 communication\u003c\/li\u003e\n  \u003cli\u003eDisplay custom strings and icons on the LED matrix\u003c\/li\u003e\n  \u003cli\u003ePower a standalone device with battery packs and understand voltage needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBBC Micro:bit v2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMicroUSB Cable\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAA Battery Holder\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAA Batteries\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Buy This Kit Instead of Sourcing Parts Separately\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003cth\u003eSourcing Separately\u003c\/th\u003e\n\u003cth\u003eCompoden Kit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompatibility checks\u003c\/td\u003e\n\u003ctd\u003eYou verify every part\u003c\/td\u003e\n\u003ctd\u003ePre-tested as a system\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBuild support\u003c\/td\u003e\n\u003ctd\u003eForums and scattered tutorials\u003c\/td\u003e\n\u003ctd\u003eAI companion trained on this exact project\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTime to first working build\u003c\/td\u003e\n\u003ctd\u003eDays of debugging\u003c\/td\u003e\n\u003ctd\u003eHours, with step-by-step guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eShipping coordination\u003c\/td\u003e\n\u003ctd\u003eMultiple sellers, multiple delays\u003c\/td\u003e\n\u003ctd\u003eOne shipment from Bengaluru in 3-5 days\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eDesigned for curious kids stepping into code—whether at home, in a hobby club, or inside an ATL Tinkering Lab. The drag‑and‑drop MakeCode editor lets Class 6‑8 CBSE students explore radio concepts without syntax stress. Perfect for siblings, best friends, or a parent‑child weekend project where the first successful secret message becomes an unforgettable high‑five moment.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat if I get stuck during the build?\u003c\/summary\u003e\u003cp\u003eScan the QR code on the box to chat with the AI companion, which knows your exact kit’s wiring and code. Or send a WhatsApp message to our help desk—we reply in minutes, not days.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need any coding experience to make the radio messaging work?\u003c\/summary\u003e\u003cp\u003eNone at all. The project uses block-based MakeCode, so kids simply drag and drop ‘on squeeze’ and ‘radio send’ blocks. The AI companion also shows a complete example you can copy in one click.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan we send messages in Hindi or any other language?\u003c\/summary\u003e\u003cp\u003eYes. The micro:bit LED matrix can display any text you program—Hindi, Tamil, emoji-like icons—as long as the sequence fits the 5x5 display. The AI companion includes a sample for “नमस्ते”.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow far apart can the two micro:bits be while still communicating?\u003c\/summary\u003e\u003cp\u003eExpect a solid range of about 30–40 metres indoors with walls, or up to 70 metres in open space. The built-in radio module runs on the 2.4 GHz band, similar to Wi‑Fi.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eTwo micro:bits communicate by radio — squeeze an accelerometer button to send a secret message to a friend.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/bbc-microbit-v2-compact-arm-board-with-led-matrix-mic-sensors\"\u003eBBC Micro:bit v2\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/microusb-cable-1m-charging-data-cord-for-arduino-android\"\u003eMicroUSB Cable\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/max1452aaet-sensor-signal-conditioner-ic-ssop-16-smd-0194\"\u003eAA Battery Holder\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/max1452aaet-sensor-signal-conditioner-ic-ssop-16-smd-0194\"\u003eAA Batteries\u003c\/a\u003e x4\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is included in the Micro:bit Friendship Bracelet Radio Kit with BBC Micro:bit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Micro:bit Friendship Bracelet Radio Kit with BBC Micro:bit includes all components needed: BBC Micro:bit v2, MicroUSB Cable, AA Battery Holder, AA Batteries and more. Everything is pre-tested for compatibility and shipped from Bengaluru, India.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What skill level is required for the Micro:bit Friendship Bracelet Radio Kit with BBC Micro:bit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Beginner level makers, suitable for ages 8-10. Two micro:bits communicate by radio — squeeze an accelerometer button to send a secret message to a friend. Estimated build time is 1-2 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Micro:bit Friendship Bracelet Radio Kit with BBC Micro:bit online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Micro:bit Friendship Bracelet Radio Kit with BBC Micro:bit is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. 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