{"product_id":"kit-esp32-c3-custom-smd-pcb-badge","title":"ESP32-C3 Custom SMD PCB Badge Kit with ESP32 + LED","description":"\u003ch1\u003eReflow Solder Your Own ESP32-C3 Badge with SMD Components and OLED Display\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 Advanced\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 6-8 hrs\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 18-21\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e SMD Reflow Soldering\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eTransform a blank credit-card sized PCB into a fully functional wearable ESP32-C3 badge with a crisp OLED display and rechargeable LiPo power. This kit is built as your first deep-dive into surface-mount soldering — where you'll master applying solder paste and reflowing components as small as 0402, using the included hot air rework station.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eYou'll assemble an 85×54 mm custom PCB hosting an ESP32-C3 SOC, 20 bypass capacitors, 10 pull-up resistors, an OLED screen, and a USB-rechargeable battery circuit — all professionally reflow-soldered by you. The badge becomes a programmable device for displaying custom messages, sensor data, or IoT connectivity.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eApply solder paste accurately onto SMD pads using a stencil\u003c\/li\u003e\n  \u003cli\u003eReflow-solder QFN-packaged ESP32-C3 and SOT-23 charger IC with hot air\u003c\/li\u003e\n  \u003cli\u003ePosition and solder 0402 passive components without tombstoning\u003c\/li\u003e\n  \u003cli\u003eInspect and rework joints under magnification for reliable function\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\u003eESP32-C3 SMD Chip\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e0402 100nF Capacitor\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e0402 10kΩ Resistor\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e0.96in OLED Display\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e3.7V LiPo Battery 150mAh\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTP4056 SOT-23 Charger IC\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCustom PCB 85x54mm\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSolder Paste Syringe\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHot Air Rework Station\u003c\/td\u003e\n\u003ctd\u003e1\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\u003eThis kit is designed for B.Tech ECE and EEE students who want to build a professional SMD project, participants of Smart India Hackathon wanting to create a custom badge, and IEEE or robotics club members transitioning from breadboard to compact surface-mount designs. It assumes basic soldering experience and readiness for the precision of 0402 rework.\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 access the AI build companion trained for this kit, or reach us on WhatsApp for a human mentor.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need a microscope for 0402 components?\u003c\/summary\u003e\u003cp\u003eWe strongly recommend a simple USB microscope or a magnifying visor for inspecting solder joints. The kit is designed with close pad clearances that benefit from 10x magnification.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I program the ESP32-C3 after building?\u003c\/summary\u003e\u003cp\u003eOnce assembled, connect the USB-C port to your computer and use Arduino IDE or ESP-IDF. Our companion provides sample code to test the OLED and Wi-Fi.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat if a 0402 component flies away during handling?\u003c\/summary\u003e\u003cp\u003eWe include extra passives beyond the required count, so you have spares. Work on a dark, clean surface to spot dropped parts easily.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eReflow solders ESP32-C3 SMD chip, 0402 passives and OLED on a credit-card PCB. First SMD soldering project.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/expansion-board-for-esp32-c3-super-mini-breakout-module\"\u003eESP32-C3 SMD Chip\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e0402 100nF Caps x20\u003c\/li\u003e\n    \u003cli\u003e0402 10kΩ Resistors x10\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/096in-oled-display-128x64-i2cspi-for-arduino-raspberry-pi\"\u003e0.96in OLED\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/37v-30c-1000mah-lipo-battery-yy802542-for-drones\"\u003e3.7V LiPo 150mAh\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/tp4056-1a-li-ion-charger-module-with-protection-micro-usb\"\u003eTP4056 SOT-23\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003eCustom PCB 85x54mm\u003c\/li\u003e\n    \u003cli\u003eSolder Paste\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/photoelectric-encoder-coded-disc-code-wheel-compoden\"\u003eHot Air Rework Station\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 ESP32-C3 Custom SMD PCB Badge Kit with ESP32 + LED?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The ESP32-C3 Custom SMD PCB Badge Kit with ESP32 + LED includes all components needed: ESP32-C3 SMD Chip, 0402 100nF Caps, 0402 10kΩ Resistors, 0.96in OLED, 3.7V LiPo 150mAh 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 ESP32-C3 Custom SMD PCB Badge Kit with ESP32 + LED?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Advanced level makers, suitable for ages 18-21. Reflow solders ESP32-C3 SMD chip, 0402 passives and OLED on a credit-card PCB. First SMD soldering project. Estimated build time is 6-8 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the ESP32-C3 Custom SMD PCB Badge Kit with ESP32 + LED online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the ESP32-C3 Custom SMD PCB Badge Kit with ESP32 + LED 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\": \"ESP32-C3 Custom SMD PCB Badge Kit with ESP32 + LED\",\n  \"description\": \"Reflow solders ESP32-C3 SMD chip, 0402 passives and OLED on a credit-card PCB. First SMD soldering project.\",\n  \"sku\": \"CDN-KIT-2265\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/compoden.in\/products\/kit-esp32-c3-custom-smd-pcb-badge\",\n    \"priceCurrency\": \"INR\",\n    \"price\": \"6555\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\"}\n  },\n  \"category\": \"Mini \u0026 Nano Form Factor\"\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":"Soldering Kit","offer_id":53469343252845,"sku":"CDN-KIT-2265-SLD","price":7500.0,"currency_code":"INR","in_stock":true},{"title":"Breadboard Combo","offer_id":53469343285613,"sku":"CDN-KIT-2265-BB","price":6970.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/kit-esp32-c3-custom-smd-pcb-badge.png?v=1781947951","url":"https:\/\/compoden.com\/products\/kit-esp32-c3-custom-smd-pcb-badge","provider":"Compoden","version":"1.0","type":"link"}