Adafruit Industries 992
Product Overview
The MPL115A2 is a low-cost I2C barometric pressure and temperature sensor from Freescale, ideal for basic barometric pressure sensing applications. While not as precise as higher-end altimeters, it offers a 1.5 hPa resolution suitable for general pressure measurements. The sensor is integrated onto a PCB with 10K pull-up resistors on the I2C pins, supporting power and logic voltages from 2.4V to 5.5V, making it compatible with both 3V and 5V microcontrollers. A basic internal temperature sensor is included, though its accuracy specifications are not detailed in the datasheet. This chip is a less precise variant of the MPL3115A2, optimized for barometric sensing.
Product Attributes
- Brand: Freescale
- Interface: I2C
Technical Specifications
| Specification | Value |
|---|---|
| Sensor Type | Barometric Pressure and Temperature Sensor |
| Model | MPL115A2 |
| Pressure Resolution | 1.5 hPa |
| Operating Voltage | 2.4V to 5.5V |
| Pull-up Resistors | 10K Ω (on I2C pins) |
| Internal Temperature Sensor | Yes (accuracy not specified) |