MIKROE-2818

MIKROE-2818 Datasheet

PID MIKROE-2818

Part	Datasheet
MIKROE-2818	MIKROE-2818 (pdf)

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DHT22 2 click PID MIKROE-2818 Weight 25 g DHT22 2 click is used for measuring the environmental temperature and relative humidity. It uses the CM2322 sensor, with very accurate thermal and humidity measuring capabilities. It can use either 1-Wire or I2C protocol to communicate with the integrated circuit. Attributes like the ultra-small size, low power consumption, data signal transmission distance up to 20 meters, make this sensor the perfect choice for all kinds of applications that require measurement of the temperature and humidity. How does the click work? The sensor used on this click is CM2322. This sensor contains humidity and temperature measurement elements, compensated and calibrated in the accurate calibration chamber. The calibration coefficient is saved in the OTP memory of an integrated MCU. The integrated MCU also proides I2C or 1-Wire interface, selectable by the onboard SMD jumper selectors. The operating voltage can also be selected by the onboard SMD jumper. Typical temperature accuracy is ±0.3°C, while relative humidity accuracy is 2% RH, with the resolution of for both measured properties. I2C/1-Wire interface is used to communicate with the host MCU, sending the measurement data every 2 seconds. Proprietary data collecting techniques are used to average the sampled values, after which the result is sent via the I2C/1-Wire bus. Specifications Type Temperature / Humidity modules CM2322 sensor with very accurate thermal and humidity measuring capabilities Great measuring accuracy ±0.3°C, ±2%RH at 25°C, size, low power Key Features consumption, signal transmission distance up to 20 meters. Interface Input Voltage 3.3V or 5V Click board size M x mm Pinout diagram This table shows how the pinout on DHT22 2 click corresponds to the pinout on the mikroBUS socket the latter shown in the two middle columns . Notes Pin Notes NC 1 AN NC 2 RST NC 3 CS NC 4 SCK NC 5 MISO NC 6 MOSI Power supply +3.3V 7 3.3V Ground GND 8 GND I2C clock I2C data Power supply Ground DHT22 2 click maximum ratings Min Typ Max Unit Logic voltage level SCL clock frequency Measuring range T Measuring range RH Onboard settings and indicators Label Name Default

PDF Datasheet Preview

DHT22 2 click

PID MIKROE-2818

Weight 25 g

DHT22 2 click is used for measuring the environmental temperature and relative humidity. It uses the CM2322 sensor, with very accurate thermal and humidity measuring capabilities. It can use either 1-Wire or I2C protocol to communicate with the integrated circuit.

Attributes like the ultra-small size, low power consumption, data signal transmission distance up to 20 meters, make this sensor the perfect choice for all kinds of applications that require measurement of the temperature and humidity.

How does the click work?

The sensor used on this click is CM2322. This sensor contains humidity and temperature measurement elements, compensated and calibrated in the accurate calibration chamber. The calibration coefficient is saved in the OTP memory of an integrated MCU. The integrated MCU also proides I2C or 1-Wire interface, selectable by the onboard SMD jumper selectors. The operating voltage can also be selected by the onboard SMD jumper.

Typical temperature accuracy is ±0.3°C, while relative humidity accuracy is 2% RH, with the resolution of for both measured properties.

I2C/1-Wire interface is used to communicate with the host MCU, sending the measurement data every 2 seconds. Proprietary data collecting techniques are used to average the sampled values, after which the result is sent via the I2C/1-Wire bus.

Specifications

Type

Temperature / Humidity
modules

CM2322 sensor with very accurate thermal and humidity measuring capabilities

Great measuring accuracy ±0.3°C, ±2%RH at 25°C, size, low power Key Features consumption, signal transmission distance up to 20 meters.

Interface

Input Voltage 3.3V or 5V

Click board size

M x mm

Pinout diagram

This table shows how the pinout on DHT22 2 click corresponds to the pinout on the mikroBUS socket the latter shown in the two middle columns .

Notes Pin

Notes

NC 1 AN

NC 2 RST

NC 3 CS

NC 4 SCK

NC 5 MISO

NC 6 MOSI

Power supply +3.3V 7 3.3V

Ground GND 8 GND

I2C clock I2C data Power supply Ground

DHT22 2 click maximum ratings

Min Typ Max

Unit

Logic voltage level

SCL clock frequency

Measuring range T

Measuring range RH

Onboard settings and indicators

Label Name Default

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MIKROE-2818 Datasheet file may be downloaded here without warranties.

Datasheet ID: MIKROE-2818 649445