{"product_id":"kit-greenhouse-pressure-monitor-kit-with-arduino-uno-plus-bmp280","title":"Greenhouse Pressure Monitor Kit with Arduino Uno + BMP280","description":"\u003ch1\u003eSimulate Rocket Apogee Detection with the Greenhouse Pressure Monitor Kit and Arduino Uno\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 2-3 hrs\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 5-15\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Apogee detection logic and relay control\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eEver wondered how model rockets know exactly when to deploy their parachute? This kit lets you build the logic behind that critical moment. Inside your own sealed greenhouse or container, the BMP280 barometric pressure sensor monitors pressure changes, and when a drop indicates peak “altitude,” the Arduino Uno commands a relay to fire a simulated ejection charge—three red LEDs flashing to signal the event. It’s a safe, table-top way to master rocketry telemetry before ever launching a real rocket.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eYou’ll assemble a complete breadboard system with an Arduino Uno, a BMP280 sensor, and a 5V relay module. The circuit reads pressure values continuously, calculates when the simulation reaches apogee, and triggers the relay to illuminate the red LEDs. You’ll end up with a working pressure monitor that mimics how flight computers decide to eject parachutes—perfect for school science demonstrations or rocketry club challenges.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAcquire precise pressure and altitude data from the BMP280 over I2C and convert it into real‑world decisions\u003c\/li\u003e\n  \u003cli\u003eProgram apogee‑detection algorithms in the Arduino IDE, identifying the exact moment pressure stops decreasing\u003c\/li\u003e\n  \u003cli\u003eControl a high‑current relay safely using a transistor driver, with 1N4007 diodes protecting against voltage spikes\u003c\/li\u003e\n  \u003cli\u003eDebug sensor data and timing logic with the serial monitor, just like professional rocketry avionics engineers do\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 Uno R3\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBMP280\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e5V Relay Module\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e5mm Red LED\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1N4007 Diode\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e4.7kΩ Resistors\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10kΩ Resistors\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e400-pt Breadboard\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM-M Wires\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e9V Battery Snap\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\u003eYoung space enthusiasts aged 12–15 who want to understand rocketry electronics beyond textbook diagrams. This kit is a perfect fit for CBSE Class 11–12 Physics students exploring sensor integration, ATL Tinkering Lab members preparing for space‑themed innovation challenges, and hobbyists who want a safe, table‑top rocketry simulation before advancing to real model rockets. It’s also ideal for Smart India Hackathon junior participants building ground‑based avionics prototypes.\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 launch the AI companion. It checks your wiring via photos and walks you through code fixes. We’re also on WhatsApp for a live chat if you need human backup.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this to deploy a real parachute on a model rocket?\u003c\/summary\u003e\u003cp\u003eThe relay can trigger a low‑current igniter, but actual rocketry involves pyrotechnics and strict safety protocols. This kit teaches the detection logic; for real flights, always follow NAR safety codes with adult supervision.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need to install any software on my computer?\u003c\/summary\u003e\u003cp\u003eYes, you’ll need the free Arduino IDE. We provide a pre‑written sketch and step‑by‑step library installation guide so you can start coding immediately.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the “greenhouse” part of this kit?\u003c\/summary\u003e\u003cp\u003eThe greenhouse acts as a sealed pressure chamber. By varying the air pressure inside—using a pump or even opening a valve—you simulate the ascent and descent of a rocket. The BMP280 detects these changes exactly as it would during a real flight, making it a safe, repeatable physics experiment.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eGreenhouse — Simulates apogee detection via BMP280 pressure drop and fires relay 'ejection charge' at detected apogee.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/uno-r3-ch340g-atmega328p-board-arduino-compatible\"\u003eArduino Uno R3\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/bmp280-barometric-pressure-temperature-sensor-module-compodenin\"\u003eBMP280\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/4-channel-relay-board-for-esp32-30-pin-5v-control\"\u003e5V Relay Module\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/led-variety-pack-50-pcs-3mm-5mm-mixed-colours\"\u003e5mm Red LED\u003c\/a\u003e x3\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/diode-variety-pack-1n4007-1n4148-1n5819-zener-assortment\"\u003e1N4007 Diode\u003c\/a\u003e x5\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/resistor-variety-pack-100-pcs-10-values-14w-carbon-film\"\u003e4.7kΩ Resistors\u003c\/a\u003e x5\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 x5\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/breadboard-standard-bundle-830400-tie-points-for-prototyping\"\u003e400-pt Breadboard\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003eM-M Wires x20\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  \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 Greenhouse Pressure Monitor Kit with Arduino Uno + BMP280?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Greenhouse Pressure Monitor Kit with Arduino Uno + BMP280 includes all components needed: Arduino Uno R3, BMP280, 5V Relay Module, 5mm Red LED, 1N4007 Diode 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 Greenhouse Pressure Monitor Kit with Arduino Uno + BMP280?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Beginner level makers, suitable for ages 5-15. Greenhouse — Simulates apogee detection via BMP280 pressure drop and fires relay 'ejection charge' at detected apogee. Estimated build time is 2-3 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Greenhouse Pressure Monitor Kit with Arduino Uno + BMP280 online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Greenhouse Pressure Monitor Kit with Arduino Uno + BMP280 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\": \"Greenhouse Pressure Monitor Kit with Arduino Uno + BMP280\",\n  \"description\": \"Greenhouse — Simulates apogee detection via BMP280 pressure drop and fires relay 'ejection charge' at detected apogee.\",\n  \"sku\": \"CDN-KIT-3260\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/compoden.in\/products\/kit-greenhouse-pressure-monitor-kit-with-arduino-uno-plus-bmp280\",\n    \"priceCurrency\": \"INR\",\n    \"price\": \"1045\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\"}\n  },\n  \"category\": \"Space \u0026 Rocketry Simulation\"\n}\n\u003c\/script\u003e","brand":"Compoden","offers":[{"title":"Clone","offer_id":53463866212717,"sku":"CDN-KIT-3260-CL","price":1160.0,"currency_code":"INR","in_stock":true},{"title":"R3 Original","offer_id":53463866245485,"sku":"CDN-KIT-3260-R3","price":3430.0,"currency_code":"INR","in_stock":true},{"title":"R4 WiFi","offer_id":53463866278253,"sku":"CDN-KIT-3260-R4","price":2800.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/kit-greenhouse-pressure-monitor-kit-with-arduino-uno-plus-bmp280.png?v=1781949158","url":"https:\/\/compoden.com\/products\/kit-greenhouse-pressure-monitor-kit-with-arduino-uno-plus-bmp280","provider":"Compoden","version":"1.0","type":"link"}