產品說明34
（現貨＊）Grove - Barometer (High-Accuracy) 高精度氣壓感測模組－HP206C芯片
Grove – Barometer (High-Accuracy) 高精度氣壓感測器 I2C通訊 seeed
Grove Barometer（High-Accuracy）0.1M高精度、高度、大氣壓力計
SKU 101020068
- High accuracy of 0.01mbar for presure measurement
- Altitude resolution at 0.01 meter
- Full Data Compensation
- Ultra-low power consumption
- Grove compatible 4pin I2C connector
Grove - Barometer (High-Accuracy) 高精度 氣壓感測器模組 i2c 通訊(101020068)
－HP206C芯片
Description
This Grove - Barometer (High-Accuracy) Sensor features a HP206C high-accuracy chip to detect barometric pressure ,Altimeter and temperature. It can widely measure pressure ranging from 300mbar~1200mbar, with a super high accuracy of 0.01mbar(0.1m) in ultra-high resolution mode.The chip only accepts 1.8V to 3.6V input voltage. However, with outer circuit added, this module becomes compatible with 3.3V and 5V. Therefore, it can be used on Arduino/Seeeduino or Seeeduino Stalker without modification.It is designed to be connected directly to a micro-controller via the I2C bus.
Features
- Digital two wire (I2C) interface
- Command-based Reading, Compensated (Optional)
- Programmable Events and Interrupt Controls
- Full Data Compensation
- Wide barometric pressure range
- Flexible supply voltage range
- Ultra-low power consumption
- Altitude Resolution down to 0.01 meter
- Temperature measurement included
Application Ideas
- High Precision Mobile Altimeter / Barometer
- Industrial Pressure and Temperature Sensor System
- Automotive Systems
- Personal Electronics Altimetry
- Adventure and Sports watches
- Medical Gas Control System
- Weather Station Equipment
- Indoor Navigation and Map Assist
- Heating, Ventilation, Air Conditioning
Documents
Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum.
相關文件
Documentations
Learn
This Grove - Barometer (High-Accuracy) Sensor features a HP206C high-accuracy chip to detect barometric pressure ,Altimeter and temperature. It can widely measure pressure ranging from 300mbar~1200mbar, with a super high accuracy of 0.01mbar(0.1m) in ultr
We have released various types of barometer sensors in recent years. You may find it difficult to make a choice between them. Let's take a close look at them and work out which one is best suited for you!
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Usage
Barometric condition is one of the criteria used to predict coming change in weather and deduce altitude above sea level. Here is a demo to show you how to read the barometric data from this Grove - Barometer Sensor.
１． Connect it to I2C port of Seeeduino or Grove - Base Shield via a Grove cable. And connect Arduino to PC via a USB cable.
２． Download the library Grove_Barometer_HP20x;Unzip it into the libraries file of Arduino IDE by the path: ..arduino-1.0.1libraries.
３． Create a new Arduino sketch and paste the codes below to it or open the code directly by the path:File -> Example ->Barometer_Sensor->Barometer_Sensor.
| /* * Demo name ?: HP20x_dev demo * Usage ?: I2C PRECISION BAROMETER AND ALTIMETER [HP206C hopeRF] * Author ?: Oliver Wang from Seeed Studio * Version ?: V0.1 * Change log ?: Add kalman filter 2014/04/04 */ #include <HP20x_dev.h> #include <KalmanFilter.h> #include "Arduino.h" #include"Wire.h" unsigned char ret = 0; /* Instance */ KalmanFilter t_filter; //temperature filterKalmanFilter p_filter; //pressure filter KalmanFilter a_filter; //altitude filter void setup() { Serial.begin(9600); // start serial for output Serial.println("****HP20x_dev demo by seeed studio****n"); Serial.println("Calculation formula: H = [8.5(101325-P)]/100 n"); /* Power up,delay 150ms,until voltage is stable */ delay(150); /* Reset HP20x_dev */ HP20x.begin(); delay(100); /* Determine HP20x_dev is available or not */ ret = HP20x.isAvailable(); if(OK_HP20X_DEV == ret) { Serial.println("HP20x_dev is available.n"); } else { Serial.println("HP20x_dev isn't available.n"); } } void loop() { char display[40]; if(OK_HP20X_DEV == ret) { Serial.println("------------------n"); long Temper = HP20x.ReadTemperature(); Serial.println("Temper:"); float t = Temper/100.0; Serial.print(t); Serial.println("C.n"); Serial.println("Filter:"); Serial.print(t_filter.Filter(t)); Serial.println("C.n"); long Pressure = HP20x.ReadPressure(); Serial.println("Pressure:"); t = Pressure/100.0; Serial.print(t); Serial.println("hPa.n"); Serial.println("Filter:"); Serial.print(p_filter.Filter(t)); Serial.println("hPan"); long Altitude = HP20x.ReadAltitude(); Serial.println("Altitude:"); t = Altitude/100.0; Serial.print(t); Serial.println("m.n"); Serial.println("Filter:"); Serial.print(a_filter.Filter(t)); Serial.println("m.n"); Serial.println("------------------n"); delay(1000); } } |
４．Open the serial monitor to receive the sensor’s data including temperature, barometric pressure value, relative atmosphere pressure and altitude.
The following is a reference graph plotting out the relationship between altitude above sea level and barometric pressure.
