{"product_id":"kit-magnetic-field-visualiser-kit-with-arduino-mega-sensor-maker-2","title":"Magnetic Field Visualiser Kit with Arduino Mega + Sensor Maker 2","description":"\u003ch1\u003eMagnetic Field Visualiser Kit with Arduino Mega – Map Magnetic Fields from Motors \u0026amp; Magnets on a TFT Heatmap\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 Intermediate\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 4-5 hours\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 15-18\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Soldering, multiplexing, Arduino programming\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eMake the invisible visible. This kit lets you construct a portable magnetic field scanner that converts Hall effect sensor readings into a real‑time colour heatmap on a 1.8‑inch TFT screen. Pass a DC motor, a solenoid coil or a stack of permanent magnets over the sensor grid, and instantly see flux density patterns — an invaluable tool for understanding electromagnetism, debugging motor assemblies, or impressing judges at a science fair.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eYou’ll solder eight A3144 Hall sensors onto three prototyping boards, wire four 74HC4051 multiplexers to read them sequentially, and upload an Arduino sketch that drives the ST7735 TFT display. The final device fits in your palm, runs on a 9V battery, and renders a vivid 8‑point heatmap that updates as you move magnetic objects over the sensing area.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eThrough‑hole soldering and board‑level wiring with real components\u003c\/li\u003e\n  \u003cli\u003eReading analog signals from multiple sensors using multiplexer ICs\u003c\/li\u003e\n  \u003cli\u003eCoding an Arduino Mega to interface a TFT colour display\u003c\/li\u003e\n  \u003cli\u003eMapping sensor data to a visual heatmap and interpreting magnetic field distribution\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\u003eArduino Mega 2560\u003c\/td\u003e\n\u003ctd\u003e×1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA3144 Hall Sensor\u003c\/td\u003e\n\u003ctd\u003e×8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e74HC4051 Multiplexer IC\u003c\/td\u003e\n\u003ctd\u003e×4\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1.8in TFT ST7735 Display\u003c\/td\u003e\n\u003ctd\u003e×1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10kΩ Resistors\u003c\/td\u003e\n\u003ctd\u003e×15\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e100nF Ceramic Capacitors\u003c\/td\u003e\n\u003ctd\u003e×10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePCB Prototype Board\u003c\/td\u003e\n\u003ctd\u003e×3\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e9V Battery Snap with DC Jack\u003c\/td\u003e\n\u003ctd\u003e×1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSoldering Iron (25W)\u003c\/td\u003e\n\u003ctd\u003e×1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSolder Wire (lead‑free)\u003c\/td\u003e\n\u003ctd\u003e×1\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 intermediate makers aged 15–18 with soldering experience and basic Arduino know‑how. Ideal for CBSE Class 12 Physics practicals, B.Tech ECE\/EEE mini‑projects, Smart India Hackathon teams, and ATL Tinkering Lab activities. IIT, NIT, VIT and BITS freshers will appreciate the hands‑on multiplexing and data visualisation challenge that bridges hardware and software.\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 to talk to the AI companion, trained on this kit’s exact wiring and code. You can also send a photo via WhatsApp for direct human help from our Bengaluru team.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I expand the sensor grid?\u003c\/summary\u003e\u003cp\u003eYes, the guide explains how to add more Hall sensors and multiplexers to create a larger array; the included sketch is modular.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes the kit include everything for soldering?\u003c\/summary\u003e\u003cp\u003eAbsolutely — a 25W soldering iron and lead‑free solder wire are inside, so you can start building immediately.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs the TFT display pre‑programmed?\u003c\/summary\u003e\u003cp\u003eNo, you’ll upload the Arduino code yourself, which teaches you display programming. Full, commented code and wiring diagrams are included.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003e8x8 array of Hall sensors maps magnetic field of motors, solenoids and magnets on TFT heatmap.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/mega-2560-r3-development-board-arduino-compatible-54-io-256kb\"\u003eArduino Mega 2560\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/a3144-hall-effect-sensor-unipolar-switch-for-magnetic-sensing\"\u003eA3144 Hall Sensor\u003c\/a\u003e x8\u003c\/li\u003e\n    \u003cli\u003e74HC4051 Mux x4\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/18-inch-spi-128x160-tft-lcd-display-module-for-arduino\"\u003e1.8in TFT ST7735\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/resistor-variety-pack-100-pcs-10-values-14w-carbon-film\"\u003e10kΩ Resistors\u003c\/a\u003e x15\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/capacitor-variety-pack-6-values-100nf-to-470uf-30-pieces\"\u003e100nF Caps\u003c\/a\u003e x10\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/esp-wroom-32-breakout-board-pcb-55x52mm\"\u003ePCB Prototype Board\u003c\/a\u003e x3\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/9v-battery-snap-connector-with-15cm-wires-compoden\"\u003e9V Battery Snap\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/soldering-kit-25w-with-solder-wire-flux-paste-compoden\"\u003eSoldering Iron\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/soldering-kit-25w-with-solder-wire-flux-paste-compoden\"\u003eSolder Wire\u003c\/a\u003e\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 Magnetic Field Visualiser Kit with Arduino Mega + Sensor Maker 2?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Magnetic Field Visualiser Kit with Arduino Mega + Sensor Maker 2 includes all components needed: Arduino Mega 2560, A3144 Hall Sensor, 74HC4051 Mu, 1.8in TFT ST7735, 10kΩ Resistors 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 Magnetic Field Visualiser Kit with Arduino Mega + Sensor Maker 2?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Intermediate level makers, suitable for ages 15-18. 8x8 array of Hall sensors maps magnetic field of motors, solenoids and magnets on TFT heatmap. Estimated build time is 4-5 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Magnetic Field Visualiser Kit with Arduino Mega + Sensor Maker 2 online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Magnetic Field Visualiser Kit with Arduino Mega + Sensor Maker 2 is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. Ships from Bengaluru in 1-5 business days across India.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Magnetic Field Visualiser Kit with Arduino Mega + Sensor Maker 2\",\n  \"description\": \"8x8 array of Hall sensors maps magnetic field of motors, solenoids and magnets on TFT heatmap.\",\n  \"sku\": \"CDN-KIT-2198\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/compoden.in\/products\/kit-magnetic-field-visualiser-kit-with-arduino-mega-+-sensor--maker-2\",\n    \"priceCurrency\": \"INR\",\n    \"price\": \"3005\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\"}\n  },\n  \"category\": \"Maker Tools \u0026 Instruments\"\n}\n\u003c\/script\u003e\u003cp\u003e\u003cstrong\u003eChoose your assembly option:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoldering Kit\u003c\/strong\u003e — 25W soldering iron, 60\/40 solder wire, flux, and small perfboard for permanent assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreadboard Combo\u003c\/strong\u003e — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Compoden","offers":[{"title":"Clone \/ Soldering Kit","offer_id":53469333913965,"sku":"CDN-KIT-2198-CL-SLD","price":2540.0,"currency_code":"INR","in_stock":true},{"title":"Clone \/ Breadboard Combo","offer_id":53469333946733,"sku":"CDN-KIT-2198-CL-BB","price":2040.0,"currency_code":"INR","in_stock":true},{"title":"R3 Original \/ Soldering Kit","offer_id":53469333979501,"sku":"CDN-KIT-2198-R3-SLD","price":4810.0,"currency_code":"INR","in_stock":true},{"title":"R3 Original \/ Breadboard Combo","offer_id":53469334012269,"sku":"CDN-KIT-2198-R3-BB","price":4310.0,"currency_code":"INR","in_stock":true},{"title":"R4 WiFi \/ Soldering Kit","offer_id":53469334045037,"sku":"CDN-KIT-2198-R4-SLD","price":4170.0,"currency_code":"INR","in_stock":true},{"title":"R4 WiFi \/ Breadboard Combo","offer_id":53469334077805,"sku":"CDN-KIT-2198-R4-BB","price":3680.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/kit-magnetic-field-visualiser-kit-with-arduino-mega-sensor-maker-2.png?v=1781947836","url":"https:\/\/compoden.com\/products\/kit-magnetic-field-visualiser-kit-with-arduino-mega-sensor-maker-2","provider":"Compoden","version":"1.0","type":"link"}