TE Connectivity MS561101BA03-50 Digital Barometric Pressure Sensor, I²C & SPI, 24-bit, QFN-8, Range:10-1200 mbar

The sensor operates from a supply voltage of 1.8V to 3.6V DC. It is compatible with 3.3V logic systems commonly found on development boards like Arduino, Raspberry Pi, and ESP32. Ensure your power supply is within this range for proper operation and to avoid damage.

The MS561101BA03-50 supports both I2C and SPI digital interfaces, but they are selected via hardware configuration (typically a pin connection). You can use either protocol, not both at the same time. The I2C address is configurable, and the SPI mode supports standard 4-wire communication.

The sensor is factory-calibrated, with six calibration coefficients stored in its onboard PROM. These coefficients are used internally to compute highly accurate pressure and temperature values. No user calibration is required, simplifying integration into your system.

The sensor provides a pressure accuracy of ±1.5 mbar over its full 10-1200 mbar range. Its 24-bit delta-sigma ADC delivers high-resolution digital output, enabling altitude calculations with a resolution as fine as 10 centimeters under stable conditions.

Yes, its fast 1 ms conversion time, high resolution, and low power consumption make it well-suited for drone altimetry and navigation systems. It provides precise barometric pressure data for altitude hold functions and GPS aiding, improving flight stability and positional accuracy.