Boardoza MS5611 Barometric Pressure Sensor Breakout Board

MS5611 High-Resolution Barometric Pressure Sensor for Accurate Altitude Measurements Breakout Board.

The Boardoza MS5611 is a high-precision barometric pressure sensor module designed for altitude measurement, weather monitoring, and industrial pressure sensing. It integrates the MS5611-01BA03 digital pressure sensor, providing accurate pressure readings with ultra-low power consumption.

This module operates with 3.3V or 5V, making it compatible with a wide range of microcontrollers. It communicates via I²C by default, but can be switched to SPI mode using the PS pin. The CSB, SDO, and PS pins operate at 3.3V, ensuring easy interfacing with low-power microcontrollers.

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Key Features

High-Precision Barometric Pressure Sensor: Ideal for altitude measurement, weather monitoring, and UAV applications.
24-bit High-Resolution Output: Ultra-precise pressure measurement using an integrated 24-bit ADC.
Flexible Power Compatibility: Operates with 3.3V or 5V, making it suitable for various MCUs.
I²C and SPI Support: Default interface is I²C, but can be configured to SPI mode using the PS pin.
Ultra-Low Power Consumption: Optimized for battery-powered applications.

Technical Specifications

Model: MS5611-01BA03
Input Voltage: 3.3V - 5.5V
Voltage Input Type: 4-pin 2.50mm header
Interface: I²C (default), SPI (configurable)
Functions: High-Precision Barometric Pressure Measurement
ADC Resolution: 24-bit
Operating Pressure Range: 450 to 1100 mbar (Full Accuracy)
Extended Pressure Range: 10 to 1200 mbar (Linear ADC Range)
Operating Temperature: -40°C ~ +85°C
Board Dimensions: 20mm x 20mm

Board Pinout

( J1 ) I²C Communication Pins

Pin Number	Pin Name	Description
1	VCC	Power Supply (3.3V - 5.5V)
2	SCL	I²C Serial Clock Pin
3	SDA	I²C Serial Data Pin
4	GND	Ground

( J2 ) SPI Mode & Configuration Pins

Pin Number	Pin Name	Description
1	CSB	Chip select (active low), internally pulled down to ground with a pull-down resistor.
2	SDO	Serial data output.
3	PS	Protocol selection: PS High (3.3V) = I²C (Default address: 0x77) PS Low (GND) = SPI Mode (Internally pulled up to 3.3V with a pull-up resistor).