I/O, PWM, Analog Ports

If a pin is not used for data transmittion, it can be used as an input, output, pulse width modulation (PWM) or analog pin. This feature is available for the WLAN and Logger Module.

Command Interface vrs. Basic Scripting

Those pins can be controlled using Basic Scripting (described in this article) or the Command Interface (described here). Choose basic scripting option if the Avisaro Module should perform stand alone functions.

Setting and querying I/O ports

To set an I/O port, use the 'put' command ( more). To read an I/O port, use the 'get' command ( more). There is also the 'setleds' ( more) and the 'key' ( more) command. Do not use those commands- they are there for compability reason only.

There is no need to declare a port as input or output port. By performing a put command, this port is declared as an output port. By performing a get, this port is declared as an input port. By default, a port is an input port.

This script listing is a simple example of how to use I/O ports within Basic. The script turns and off Pin 2 . It reads in Pin4 and sets Pin 3 the same :

      ' Script to set and read ports
      ' for demonstration purpose


      let in = 0        ' declare variable in

do

         put -202, #1   'pin 2: on
                        'pin 2 is often the red led

                        'sleep 1 second
         sleep 1000

         put -202, #0   'pin 2: off

         sleep 1000

         get -204, in

         put -203, in   ' set pin 3 same as
                        ' input pin 4   
      loop

Details

There is no need to declare a port as I/O port. Simply use the port.
A new port command overwrites a previous configuration. Thus, if a pin was used for data communication, a port command can interrupt this functionality
Make sure to follow the electrical rules pins ( more)