AM2315 I2C 數位信號輸出溫濕度模組 溫濕度感測器

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AM2315 I2C 數位信號輸出溫濕度模組 溫濕度感測器

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AM2315 I2C 數位信號輸出溫濕度模組 溫濕度感測器

AM2315 濕敏電容數位溫濕度感測器是一款含有己校準數位信號輸出的溫濕度複合型感測器。采用專用的溫濕度採集技術,確保產品具有極高的可靠性與卓越的長期穩定性。感測器包括一個電容式感濕元件和一個高精度集成測溫元件,並與一個高性能微處理器相連接。因此該產品具有品質卓越、超快回應、抗干擾能力強、性價比極高等優點。

AM2315 通信方式採用標準 I2C 通信方式。I2C 通信方式採用標準的通信時序,用戶可直接掛在I2C 通信匯流排上,無需額外佈線,使用簡單。傳輸的數位資料採用直接輸出經溫度補償後的濕度、溫度及校驗 CRC 等數位資訊,使用者無需對數位輸出進行二次計算,也無需要對濕度進行溫度補償,便可得到準確的溫濕度資訊。產品為 4 引線,連接方便,特殊封裝形式可根據使用者需求而提供。

  • 3.5 to 5.5V power and I/O
  • 10 mA max current use during conversion (while requesting data)
  • Good for 0-100% humidity readings with 2% accuracy
  • Good for -20 to 80°C temperature readings ±0.1°C typical accuracy
  • 0.5 Hz update rate
  • Body size 98mm x 16mm diameter (4″ x 0.9″ )
  • 4 wires 20 inches long
  • Weight: 82.64g
  • This board/chip uses I2C 7-bit address 05C.

函數庫 https://github.com/adafruit/Adafruit_AM2315

Arduino 範例

AM2315 – Encased I2C Temperature/Humidity Sensor

Finally we have an I2C-interface temperature & humidity sensor in a nice enclosed style. This sensor contains a thermistor temperature sensor and a capacitive humidity sensor. A small microcontroller inside does the readings and provides a simple I2C interface for reading the finished & calibrated output data. Especially nice is that this sensor is in a rugged case with mounting bracket, which makes it way superior to a normal PCB-mounted sensor.

While it is not rated as ‘weatherproof’, this sensor would do much better for sensing where there might be wind, rain, zombies, etc. than SHT PCB-breakout sensors, and the i2c interface makes it easier to interface with microcomputers that can’t do the delicate timing of the DHT sensors.

Simply connect the red wire to 5V power, black to ground, yellow wire to your i2c data pin, and the white wire to the i2c clock pin. You cannot change the i2c address so only one sensor per i2c bus. Two ~10Kohm pullup resistors are required for use, connect from the SDA and SCL lines to the power wire, the pullup resistors are not included!

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