Temperature Thermostat and Humidity Sensor Module Probe AM2302/SHT20/SHT30/DHT22

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Product Description：
AM2320 temperature and humidity sensor
(1): AM2320 digital temperature and humidity sensor is a calibrated digital signal output containing hexyl temperature
and humidity sensor complex.
Temperature and humidity using a dedicated capture technology to ensure
that products with high reliability and excellent long-term stability.
Sensor includes a capacitive humidity sensing element and
an integrated high-precision temperature measurement devices,
and connected with a high-performance microprocessors.
The product has excellent quality, fast response,
anti-interference ability, high cost and other advantages.
(2): AM2320 communication using a single bus, standard I2C two means of communication.
Standard single-bus interface, allowing system integrators to become simpler and quicker,
Ultra-small size, low power consumption, signal transmission distance up to 20 meters or more,
making it the best choice for all kinds of applications and even the most demanding applications.
I2C communication using standard communication sequence,
the user can directly linked to the I2C communication bus without additional wiring, simple to use.
Two means of communication are used as humidity, temperature and check CRC and
other digital information directly via temperature compensated output,
users do not need to calculate the secondary digital output,
and no need for temperature compensation of the humidity,
you can get an accurate temperature and humidity information.
(3): two means of communication are free to switch, the user can freely choose, easy to use,
it should be broad areas. Products for 4-wire, easy connection,
special packages according to user needs and availability.
2: Product Features:
(1): Ultra-small size;
(2): super cost-effective;
(3): ultra-low voltage operation;
(4): Excellent long-term stability;
(5): Standard I2C and single-bus output.
3:
Applications:
(1): HVAC, dehumidifiers, testing and inspection equipment,
consumer goods, automotive, automation, data loggers,
weather  stations, home appliances, humidity control, medical,
and other relevant humidity measurement and control.
4: Measuring range: Temperature: -40 ~ + 80 ℃ Humidity: 0 ~ 99.9% RH
5: Accuracy (at 25 ℃ environment):
6: Temperature: ± 0.5 ℃ Humidity: ± 3% RH (10 ... 90% RH)
7: Resolution: Temperature: 0.1 ℃ Humidity: 0.1% RH
Package included：
1PCS x  AM2320 Digital Temperature Humidity Sensor Replace AM2302 SHT10 for Arduino
SHT30 temperature and humidity sensor
Sensiron Temperature/Humidity sensors are some of the finest & highest-accuracy devices you can get. And, finally we have some that have a true I2C interface for easy reading. The SHT30-D sensor has an excellent ±2% relative humidity and ±0.3°C accuracy for most uses.
Unlike earlier SHT sensors, this sensor has a true I2C interface, and (bonus!) even with two address options. It also is 3V or 5V compliant, so you can power and communicate with it using just about any microcontroller or microcomputer.
Such a lovely chip - so we spun up a breakout board with the SHT30-D and some supporting circuitry such as pullup resistors and capacitors. Each order comes with one fully assembled and tested PCB breakout and a small piece of header. You'll need to solder the header onto the PCB but it's fairly easy and takes only a few minutes even for a beginner.
Power Pins:
Vin - this is the power pin. The chip can use 2.5-5VDC for power. To power the board, give it the same power as the logic level of your microcontroller - e.g. for a 5V micro like Arduino, use 5V. For a 3.3V controller like a Raspbery Pi, connect to 3.3V
GND - common ground for power and logic
I2C Logic pins:
SCL - I2C clock pin, connect to your microcontrollers I2C clock line.
This pin has a 10K pullup resistor to Vin
SDA - I2C data pin, connect to your microcontrollers I2C data line.
This pin has a 10K pullup resistor to Vin
Other Pins:
ADR - This is the I2C address selection pin. This pin has a 10K pull down resistor to make the default I2C address 0x44. You can tie this pin to Vin to make the address 0x45
RST - Hardware reset pint. Has a 10K pullup on it to make the chip active by default. Connect to ground to do a hardware reset!
ALR - Alert/Interrupt output. You can set up the sensor to alert you when an event has occured. Check the datasheet for how you can set up the alerts
Package Included:
1 X SHT30 SHT30-D Temperature Humidity Sensor Breakout Board
AM2302/DHT22 temperature and humidity sensor
Brand new and high quality.
Type:AM2302.
Accuracy resolution:0.1.
Humidity range:0-100%RH.
Temperature range:-40~80℃.
Humidity measurement precision:±2%RH.
Temperature measurement precision:±0.5℃.
4-pin package.
Ultra-low power.
No additional components.
Excellent long-term stability.
All calibration, digital output.
Completely interchangeable.
Long distance signal transmission.
Relative humidity and temperature measurement.
Shipping Included:
1PCS*AM2302 Temperature and Humidity Sensor
AC110V-220V 10A SHT2000 temperature and humidity controller
Setting method:
Start value Setting method:
Start value > stop value (the program automatically determines the working mode is cooling/dehumidifying mode)
Heating/cooling mode setting
Setting mode:
setting (starting temperature): Press and hold the ▲ button to start the temperature flashing. Use ▲▼ key to set the starting temperature value.
Setting (stop temperature):
Press and hold the ▼ button to stop the temperature flashing. Use ▲▼ to set the stop temperature value.
Heating use case:
control the water heater, heat to 65 ° C to stop, the temperature drops back to 50 ° C and start heating again
The first step:
heating mode, starting temperature Step 2: Press and hold the ▲ button to start the temperature flashing. Use ▲▼ to set the starting temperature to 50 °C.
Step 3: Press and hold the ▼ button to stop the temperature flashing. Set the stop temperature to 65 °C with ▲▼ keys, and the setting is completed!
Refrigeration use case:
use in the farm, the fan is ventilated to 26 ° C to stop, the temperature is raised to 30 ° C and the ventilation is started again.
The first step: cooling mode, starting temperature > stop temperature
Step 2: Press and hold the ▲ button to start the temperature flashing. Use ▲▼ to set the starting temperature to 30 °C.
The third step: long press the ▼ button to stop the temperature flashing, set the stop temperature to 26 °C by ▲▼, the setting is completed!
Humidification/Dehumidification Mode Settings:
Setting (start humidity): Press and hold △ key to start the humidity value flashing. Set the humidity value by △ ▽ key. Set [Stop Humidity]: Press and hold △ key to stop the humidity value flashing, and set the humidity to stop by △ ▽ key
value.
Humidification example:
fresh supermarket humidification, control humidifier 50% RH began to humidify, humidified to 80% RH to stop humidification.
Setup steps:
Step 1: Press and hold the △ button for 3 seconds to start the humidity value flashing, and set the starting humidity value to 50% RH.
Step 2: Press and hold the ▽ button for 3 seconds to stop the humidity value flashing. Set the value to 80% RH. After the setting is completed, the button will be operated for 5 seconds without returning to the normal display state.
Dehumidification example:
workshop control exhaust dehumidification system, humidity 70% RH starts dehumidification, humidity 40% RH stops dehumidification
Setup steps:
Step 1: Press and hold the △ button for 3 seconds to start the humidity value flashing, and set the starting humidity value to 40% RH.
Step 2: Press and hold the ▽ button for 3 seconds to stop the humidity value flashing, set the value to 70% RH, the setting is completed, the button does not operate for 5 seconds, and automatically returns to the normal display state.
SHT20 temperature and humidity sensor
The SHT20 digital temperature and humidity sensor is based on digital sensing technology and offers high reliability and long-term stability. Full-scale calibration, two-wire digital interface, can be directly connected to the microcontroller, greatly reducing development time, simplifying peripheral circuits and reducing costs. In addition, it is small in size, quick in response, low in energy consumption, immersible, strong in anti-interference ability, integrated in temperature and humidity, combined with dew point measurement, and cost-effective, making the product suitable for a variety of applications.
Technical Parameters:
1. Humidity measurement range: 0~100%RH.
2.
humidity measurement accuracy: ± 3% RH
3.
temperature measurement range: -40 ~ 125 ° C
4.
temperature measurement accuracy: ± 0.3 ° C
5.
working voltage: 2.1 ~ 3.6VDC
(please note: do not use 5V power supply!!!)
6.
I2C interface output
Package Included:
1 x SHT20 Digital Temperature and Humidity Sensor
SHT20 temperature and humidity sensor Modbus RS485
Product adopts industrial-grade chip, high-precision SHT20 temperature and humidity sensors, ensure the products with good reliability, high precision and interchangeability.
Adopt RS485 hardware interface (with the lightning protection design), the protocol layer compatible with standard industrial Modbus Rtu protocol.
This product integrating MODBUS protocol with ordinary, users can choose communication protocols, common agreement with automatic upload function(Connect the RS485 serial interface mode tool by automatically output temperature and humidity).
Product Highlights:
Industrial products, high progress SHT20 temperature and humidity sensor, the RS485 communication;
Standard MODBUS protocol with ordinary at an organic whole, the user can choose communication protocol;
Baud rate can decide for themselves;
General agreement with automatic upload function, upload speed can decide for themselves.
Product Parameters:
Work voltage: DC4-30 v (highest do not exceed 33 v) .
Most powerful: 0.2 W .
Work environment: Temperature 20 ℃ - 60 ℃, Humidity 0-100.
Control precision: Temperature±0.3℃, Humidity ±3%RH.
Output interface: RS485 communication (standard MODBUS protocol and custom ordinary), see note agreement device.
Device address: 1-247 can be set, the default is 1.
Baud rate: 9600(the user can set), 8bits, one stop, no check;
Shape size:60*30*18(mm)
Package Includes:
1x Temperature Humidity Transmitter
ESP8266 AM2302 DHT22 temperature and humidity sensor