PinoutHub The MPU9250 is a 9-axis inertial measurement unit (IMU) that combines a 3-axis gyroscope, a 3-axis accelerometer, and a 3-axis magnetometer in a single compact package. By measuring rotational movement, acceleration, and magnetic field direction, it can provide accurate motion tracking, orientation sensing, and heading information. This makes the MPU9250 ideal for applications that require … Read more
The PMS5003 is a digital particulate matter sensor that uses laser scattering technology to measure the concentration of airborne particles in three size categories: PM1.0, PM2.5, and PM10. It provides calibrated mass concentration data as well as raw particle counts through a UART interface, making it easy to integrate with microcontrollers and single-board computers. The … Read more
The MQ5 is an analog gas sensor designed to detect flammable gases such as LPG, natural gas, and town gas by measuring changes in the resistance of a heated sensing element. It provides both an analog output proportional to gas concentration and a digital output that can be triggered at a user-defined threshold. The sensor … Read more
The MPU6050 is a 6-axis inertial measurement unit (IMU) that combines a 3-axis gyroscope and a 3-axis accelerometer in a single compact chip. It is widely used in drones, self-balancing robots, motion-tracking systems, gaming controllers, and gesture-recognition devices. By measuring both acceleration and rotational movement, the MPU6050 can determine an object’s orientation, tilt, and motion … Read more
The MQ135 is an analog air quality sensor by Winsen Electronics that detects a broad range of toxic and pollutant gases by measuring resistance changes across a heated tin dioxide element. Unlike the rest of the MQ series (which each target one or two specific gases), the MQ135 is designed as a general-purpose air quality … Read more
The MQ7 is an analog carbon monoxide (CO) gas sensor that detects the presence of carbon monoxide in the air by measuring changes in electrical resistance. Carbon monoxide is a colorless, odorless, and highly toxic gas produced by the incomplete combustion of fuels such as gasoline, natural gas, coal, and wood, making it impossible to … Read more
The MQ3 is an analog alcohol gas sensor that detects ethanol vapour in the air by measuring changes in electrical resistance across a heated tin dioxide sensing element. It provides both an analog voltage output proportional to alcohol concentration and a digital threshold output, making it easy to interface with microcontrollers. The sensor is commonly … Read more
The BME688 is a compact, digital 4-in-1 environmental sensor that measures gas, humidity, pressure, and temperature in a single package — purpose-built for mobile and connected devices where size and energy efficiency are non-negotiable. Its gas sensing capability is particularly noteworthy — it can detect volatile organic compounds (VOCs), volatile sulfur compounds (VSCs), carbon monoxide, … Read more
The BME680 is a digital 4-in-1 environmental sensor by Bosch Sensortec that measures gas (VOCs), humidity, pressure, and temperature — all over a single I²C or SPI connection. It takes everything the BME280 measures and adds a metal oxide gas sensor on top, making it capable of detecting volatile organic compounds in the surrounding air … Read more
The BMP280 is a digital barometric pressure and temperature sensor by Bosch Sensortec. It measures absolute air pressure and derives altitude from it, while the onboard temperature sensor handles internal compensation. It is the direct successor to the BMP180 (smaller footprint, lower power draw, less noise, higher resolution, and SPI support added alongside I²C) and … Read more