{"product_id":"kit-building-energy-audit-logger","title":"Building Energy Audit Logger Kit with ESP32 + LED","description":"\u003ch1\u003eBuild a 6-Circuit Home Energy Audit Logger with ESP32 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 12-15 hours\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 25+\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Multi-channel power monitoring and web dashboard development\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eTake control of your electricity bills with a professional-grade energy audit system that monitors six individual circuits simultaneously. This logger pairs two PZEM-004T sensors for full AC parameter capture on key appliance lines and four ACS712 modules for current-only tracking on lighting or socket circuits, storing hourly kWh data on SD card and serving a live web dashboard that displays your daily cost breakdown—ideal for Indian homes, rental properties, or small commercial setups aiming to identify power-hungry loads and shift usage patterns.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eBy assembling this kit, you construct a DIN‑rail‑mountable energy logger that clamps onto six separate circuits, records real‑time power data with microsecond‑accurate timestamps from the DS3231, and generates a locally hosted web page showing per‑circuit kWh consumption and estimated daily cost. The OLED provides instant readouts at the panel, while the SD card stores long‑term logs you can analyse later. After 12–15 focused hours, you will have a working energy audit tool that makes it easy to spot inefficient appliances, track solar offset, or simply understand where your electricity rupees go each month.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWire and configure multiple PZEM‑004T and ACS712 sensors on a single ESP32 without electrical clashes\u003c\/li\u003e\n  \u003cli\u003eProgram an ESP32 web server that serves dynamic charts using real‑time sensor data\u003c\/li\u003e\n  \u003cli\u003eIntegrate a DS3231 RTC to timestamp every log entry precisely\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003ePZEM-004T on each of six circuits logs kWh per circuit per hour to SD. Web dashboard shows daily cost breakdown.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/esp32-30-pin-development-board-cp2102-wifi-bluetooth\"\u003eESP32 Dev Board\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/pzem-004t-ac-energy-monitor-module-100a-modbus-rtu\"\u003ePZEM-004T\u003c\/a\u003e x2\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/acs712-5a-current-sensor-module-precise-hall-effect-measurement\"\u003eACS712 30A\u003c\/a\u003e x4\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/ds3231-real-time-clock-module-i2c-rtc-with-battery-backup\"\u003eDS3231 RTC\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/microsd-card-reader-spi-module-for-arduino\"\u003eMicroSD Module\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/lm2596-buck-converter-step-down-voltage-regulator-module\"\u003eLM2596 Buck Converter\u003c\/a\u003e\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\u003e1000µF 25V Caps x4\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\/vs1053-mp3-recording-module-for-arduino-spi-audio-codec\"\u003eDIN Rail Enclosure\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/12v-2a-dc-adapter-reliable-power-supply-for-projects\"\u003e12V Adapter\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 Building Energy Audit Logger Kit with ESP32 + LED?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Building Energy Audit Logger Kit with ESP32 + LED includes all components needed: ESP32 Dev Board, PZEM-004T, ACS712 30A, DS3231 RTC, MicroSD Module 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 Building Energy Audit Logger Kit with ESP32 + LED?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Expert level makers, suitable for ages 25+. PZEM-004T on each of six circuits logs kWh per circuit per hour to SD. Web dashboard shows daily cost breakdown. Estimated build time is 12-15 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Building Energy Audit Logger Kit with ESP32 + LED online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Building Energy Audit Logger 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\": \"Building Energy Audit Logger Kit with ESP32 + LED\",\n  \"description\": \"PZEM-004T on each of six circuits logs kWh per circuit per hour to SD. Web dashboard shows daily cost breakdown.\",\n  \"sku\": \"CDN-KIT-0261\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/compoden.in\/products\/kit-building-energy-audit-logger\",\n    \"priceCurrency\": \"INR\",\n    \"price\": \"8780\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\"}\n  },\n  \"category\": \"Home Automation\"\n}\n\u003c\/script\u003e\u003cp\u003e\u003cstrong\u003eChoose your assembly option:\u003c\/strong\u003e\u003c\/p\u003e\n\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\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Compoden","offers":[{"title":"Soldering Kit","offer_id":53459776438637,"sku":"CDN-KIT-0261-SLD","price":8710.0,"currency_code":"INR","in_stock":true},{"title":"Breadboard Combo","offer_id":53459776471405,"sku":"CDN-KIT-0261-BB","price":8110.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/kit-building-energy-audit-logger.png?v=1782285672","url":"https:\/\/compoden.com\/products\/kit-building-energy-audit-logger","provider":"Compoden","version":"1.0","type":"link"}