{"product_id":"gy-68-bmp180-barometric-pressure-sensor-module-for-arduino-iot","title":"GY-68 BMP180 Barometric Pressure Sensor Module for Arduino \u0026 IoT","description":"\u003ch1\u003eGY-68 BMP180 Digital Barometric Pressure Sensor Module with I2C Interface\u003c\/h1\u003e\u003cp\u003eThe GY-68 module features the BMP180 digital barometric pressure sensor from Bosch, delivering accurate pressure and temperature readings over an I2C interface. It is widely used in weather stations, altitude measurement, and drone height control. The on-board regulator and level shifter allow safe use with 3.3V and 5V microcontrollers.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor\u003c\/td\u003e\n\u003ctd\u003eBMP180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Range\u003c\/td\u003e\n\u003ctd\u003e300–1100 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsolute Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1 hPa (0.1 m altitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-40 to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eI2C (up to 3.4 MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V–5V (on-board regulator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kit-indoor-weather-station\"\u003eDIY weather station with humidity and rain sensor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eAltimeter for drones or rockets\u003c\/li\u003e\n\u003cli\u003eIndoor climate monitor with LCD display\u003c\/li\u003e\n\u003cli\u003eIoT based atmospheric pressure tracker using ESP8266\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eWorks with Arduino Uno, Nano, Mega, ESP8266, ESP32, and Raspberry Pi. The I2C lines operate at 3.3V logic; the built-in regulator handles 5V supply. For direct 5V I2C connections, use a level shifter.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eConnect VCC to 3.3V or 5V, GND to ground, SDA to A4 (Uno) or D2 (ESP), SCL to A5 or D1. The module includes pull-up resistors, so no external ones are needed. Avoid bending the sensor to prevent offset errors.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, the GY-68 works with Arduino boards using the Wire library. It operates at 3.3V logic, so for 5V boards connect directly to I2C pins which are often 5V tolerant on many Arduino models.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I measure altitude with this sensor?\u003c\/summary\u003e\u003cp\u003eYes, the BMP180 provides pressure readings that can be converted to altitude using standard formulas. It achieves an accuracy of about 0.1 meters under ideal conditions.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes this module work with 5V logic directly?\u003c\/summary\u003e\u003cp\u003eThe module has a 3.3V regulator and the sensor communicates at 3.3V. The I2C lines are not 5V tolerant on all versions; we recommend using a logic level converter or ensuring your board has 5V tolerant I2C pins.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445022450029,"sku":"CDN-0744","price":40.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/download_84646b0e-9abb-4fbf-a24d-da21720408bc.jpg?v=1781525743","url":"https:\/\/compoden.com\/products\/gy-68-bmp180-barometric-pressure-sensor-module-for-arduino-iot","provider":"Compoden","version":"1.0","type":"link"}