AM2315C -I2C 온도/습도 센서
(AM2315 - Encased I2C Temperature/Humidity Sensor)
개요
- 본 제품은 케이스를 가진 I2C 온습도 AM2315C 센서 입니다.
- DS18B20 온도센서와 정전식 습도 센서를 내장하고 있으며, 또 내장된 마이크로컨트롤러가 데이터를 읽어 I2C 인터페이스로 센서 출력을 제공합니다.
- 단단한 센서 케이스와 마운팅 브라켓이 있어 설치가 용이 합니다.
- 방수 등급을 가지고 있는 것은 아니지만 외부 환경으로부터 센서를 보호하는데 용이 합니다.
- 5V 전원을 빨강 선에 검정선을 Gnd에, 노랑선을 I2C 데이터 핀에, 흰색선을 I2C 클럭 핀에 연결하여 사용합니다.
- I2C 주소는 변경이 불가능하기 때문에 하나의 I2C버스에서 하나의 센서만 사용이 가능합니다.
- 사용을 위해서는 두개의 ~10Kohm 풀업 저항이 필요합니다. SDA와 SCL 라인에서 전원 라인까지 풀업 저항을 연결하여 주셔야 합니다.
특징
- I2C address 0x38 (cannot be changed)
- 2.5V to 5.5V power and logic level
- Cable Length: 508mm / 20"
- Wiring order: Red: Power, Black: Ground, Yellow: SDA, White: SCL
- 4 wires, 50mm / 2" long
- Built-in 4.7K I2C pullup resistors.
- Usage Humidity: 0... 100%RH
- Usage Temperature: -40ºC – 80ºC
- Body size 98mm x 16mm diameter (4" x 0.9" )
- Typical accuracy of ±2% relative humidity, and ±0.3 °C at 20-80% RH and 20-60 °C
- Overall accuracy of ±3% relative humidity, and ±0.5 °C
문서
- Datasheet
-
The AM2315C is a nice, enclosed temperature and humidity sensor from the same folks that brought us the AM2315. In fact, this enclosed sensor looks an awful lot like the popular AM2315 temperature and humidity sensors, but inside is the AHT20.
You can power it with anything from 2.5V to 5.5V so it's good with 3V or 5V microcontrollers. You can take sensor readings as often as you like, and it uses standard I2C so it's super easy to use with any Arduino or Linux/Raspberry Pi board.Whew, that makes things a little easier, doesn't it?
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 DHT sensors.
This sensor has a typical accuracy of ±2% relative humidity, and ±0.3 °C at 20-80% RH and 20-60 °C. There is only one I2C address so it's not a good option when you need multiple humidity sensors.
That said, for maker and IoT projects? You can't beat the simplicity and price! And we've got ready-to-go working Arduino and CircuitPython code to use it. Check out our detailed guide for library code, datasheet, and more