This pressure sensor from Freescale is a great low-cost sensing solution for measuring barometric pressure. At 1.5 hPa resolution, it's not as precise as our favorite pressure sensor, the BMP085, which has up to 0.03 hPa resolution so we don't suggest it as a precision altimeter. However, it's great for basic barometric pressure sensing. The sensor is soldered onto a PCB with 10K pull-up resistors on the I2C pins.
This chip is good for use with power and logic voltages ranging from 2.4V to 5.5V so you can use it with your 3V or 5V microcontroller. There's a basic temperature sensor inside but there's no specifications in the datasheet so we're not sure how accurate it is.
Using the sensor is easy. For example, if you're using an Arduino, simply connect the VIN pin to the 5V voltage pin, GND to ground, SCL to I2C Clock (Analog 5 on an UNO) and SDA to I2C Data (Analog 4 on an UNO). Then download our MPL115A2 Arduino library and example code for temperature, pressure and basic altitude calculation. Install the library, and load the example sketch. Immediately you'll have the temperature, pressure and altitude data printed in the serial console.
- PCB weight: 0.61g
- Vin: 2.4 to 5.5 VDC
- Logic: 3 to 5V compliant
- Pressure sensing range: 500-1150 hPa (up to 10Km altitude)
- 1.5 hPa / 50 m altitude resolution
|Part. No. :||992|
Questions on MPL115A2 - I2C Barometric Pressure/Temperature Sensor
No questions asked yetRegister or Login to ask a question.
709721 MPL115A1 Barometric Pressure Sensor BreakoutNow mounted on a breakout board, the MPL115A1 is a digital barometric pressure sensor that uses MEMs technology to give accurfalseExcl. Tax:€10.85Incl. Tax:€13.24
808430 Adafruit BME280 I2C or SPI Temperature Humidity Pressure SensorBosch has stepped up their game with their new BME280 sensor, an environmental sensor with temperature, barometric pressure afalseExcl. Tax:€21.30Incl. Tax:€25.99
809286 Adafruit MPRLS Ported Pressure Sensor Breakout - 0 to 25 PSISensore di pressione con presa aria. Si puo' collegare un tubetto alla presa per misurare la pressione dell'aria. Comunica trfalseExcl. Tax:€16.50Incl. Tax:€20.13