저전력 대기압/온도 센서 -ICP-10111
(BAROMETER 4 CLICK)
개요
- 본 제품은 저전력 대기압/온도 센서 -ICP-10111 입니다.
- ICP-10111 칩 기반으로 디자인된 제품입니다.
- I2C 인터페이스를 가지고 있으며, 30kPa - 110kPa 대기압을 측정(accuracy of ±1Pa)할 수 있습니다.
- 3.3V/5V 시스템과 사용이 가능합니다.
특징
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HOW DOES IT WORK?
Barometer 4 Click as its foundation uses the ICP-10111, an ultra-low power, low noise, digital output barometric pressure, and temperature sensor from TDK InvenSense. It is based on an innovative MEMS capacitive pressure sensor technology that can measure pressure in a range from 30kPa up to 110kPa with an accuracy of ±1Pa over a wide operating temperature range at the industry's lowest power. This high accuracy MEMS capacitive pressure sensor can also measure altitude differentials down to 8.5cm without the penalty of increased power consumption or reduced sensor throughput.
The ICP-10111 also offers industry-leading temperature stability of the pressure sensor with a temperature coefficient offset of ±0.5Pa/°C. The high accuracy, temperature stability, and low power consumption offered by ICP-10111 make it ideally suited for applications such as drone flight control and stabilization, indoor/outdoor navigation, sports and fitness activity monitoring, and battery-powered IoT.
The ICP-10111 also requires a supply voltage of 1.8V to work regularly. Therefore, a small LDO regulator, BH18PB1WHFV from Rohm Semiconductor, provides 1.8V out of mikroBUS™ power rails. This LDO cut power consumption by lowering its current consumption to approximately 2μA when the application is operating in the Standby state.
Barometer 4 Click communicates with MCU using a standard I2C 2-Wire interface that supports 400kHz Fast Mode operation. Since the sensor for operation requires a 1.8V logic voltage level only, this Click board™ also features the PCA9306 voltage-level translator from Texas Instruments. The I2C interface bus lines are routed to the dual bidirectional voltage-level translator, allowing this Click board™ to work with both 3.3V and 5V MCUs properly.
This Click board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the I2C communication lines properly. However, the Click board™ comes equipped with a library that contains easy-to-use functions and an example code that can be used, as a reference, for further development.
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Type Pressure Applications Can be used for various pressure-based applications, especially when low power consumption is required, home appliances such as airflow control in HVAC, water level detection, vertical velocity monitoring, weather forecasting, and many more On-board modules ICP-10111 - an ultra-low power, low noise, digital output barometric pressure, and temperature sensor from TDK InvenSense Key Features Low power consumption, high precision, embedded temperature sensor, ultra-low noise, temperature stability, accuracy of ±1Pa over a wide operating temperature range, also measure altitude differentials down to 8.5cm, and more Interface I2C Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V or 5V