AM2105A Temperature and Humidity sensor

AM2105A Temperature and Humidity sensor

Version

V1.0

Script name

BCE_MEAS_AM2105A-SCR-50_4

Last updated

2021-10-07

Revision information

No revision

Sensor - data to publish to broker.

Settings - user configurable settings.


Operating principle

Temperature and Humidity sensor connects via RS485 communication line. 5 sensors could be connected on the same line. Addresses must be different for each device.

 

Device have two different adresses for Humidity and Temperature but their ID goes in pair.

Table 1. Sensors ID pairs.

Sensor pair ID

Temperature sensor ID

Humidity sensor ID

1

0x21

0x26

2

0x22

0x27

3

0x23

0x28

4

0x24

0x29

5

0x25

0x30

Table 2. Sensors and settings descriptions.

Nr.

Sensor name

Description

  1.  

Temperature value sensor

On which sensor assign value. Could be any value from dropdown list

  1.  

Humidity value sensor

On which sensor assign value. Could be any value from dropdown list

  1.  

Temperature sensor ID

ID of sensor

  1.  

Humidity sensor ID

ID of sensor

Connection

Image 1. Connection between FMS500 XtCan and AM2015A RS485 ports.

 

AM2015 Address changing setup

Version

V1.0

Author

Giedrius Pupeikis

Script name

BCE_MEAS_AM2105A-SCR-50 Tool to change address

Last updated

2021-10-07

Revision information

No revision

Operating principle

To have faster way to customize device address client could make a setup from xtcan device. Currently script support ability to change to 3 different ID out of 5. The proccess:

  • No sensor connected. LED blinks every 1 second.

  • Connect sensor. Device will autosearch for its address. LED blinks every 1 second.

  • Sensor found. LED Blinks every 100 ms. Device waits for input

  • When button presssed then device change address. LED blinks every 500 ms.

  • Address changed. LED stays turned on.

  • Sensor mus be disconnect and client should wait for LED blinking to start process again

 

Table 3. Button changes to which address table

Button

Address pair ID (TABLE 1)

IN 2

1

IN 3

2

IN 5

3