BX COM port - text message via mobile phone

The serial interface can also be used for sending a text message from the BX controller. The following example uses the SMS library with a Siemens S35 mobile phone.

Mobile phone at the COM port of the BX controller

BX COM port - text message via mobile phone 1: Download: (sample file)

Pin assignment (Siemens cable S30880-S4501 A801-2)

S35

COM 1

COM 2

2

3

7

3

2

8

5

5

9