Specifications

Chapter 7
Default firmware settings
7.1 Factory settings
The modem has the following factory settings. Please refer to the AT command document for the meaning of each
setting.
Related AT commands Factory settings Description
AT+IPR 115200 DTE-DCE data rate
AT+IFC 2,2 DTE-DCE flow control
AT+ICF 3,4 DTE-DCE character framing
ATE 1 ECHO
ATQ 0 Result code suppression
ATV 1 Response format
ATS0 0 Auto answer
AT+CSCS “PCCP437” Character Set
AT+CMGF 1 Short message format
7.2 Digital Input/Output ports
/!\ Important notice: This section concern only OpenAT developer that will need to control GPIOs from
their application, else the Maestro SmartPack will control GPIOs through SmartPack AT commands.
Inputs are mapped in OpenAT to: GPIO01 for DIO1, GPIO03 for DIO2.
– To setup DIO1 as an input, type AT+WIOM=1,"GPIO01",0 on the serial port. Then to read the status of the
input, type AT+WIOR="GPIO01". +WIOR: 1 means input is below 0.5V while +WIOR: 0 means a positive
voltage of more than 3V. Higher voltage than 12V will damage the unit.
Note: Please note that the output port need to be set as open for the input to work.
Outputs are mapped in OpenAT to: GPIO06 for DIO1, GPIO05 for DIO2.
– To setup DIO1 as an output, type AT+WIOM=1,"GPIO06",1 on the serial port. Then set the state of the output
with AT+WIOW="GPIO06",0 to set the output as open, or AT+WIOW="GPIO06",1 to set the output as close.
7.3 RS232 auto-online mode (power saving)
When on auto-online mode, the RS232 transceiver will shut down most of its hardware, to save power, if it does not
detect a valid input for more than 100µs. The RS232 transceiver will wake up when valid input is detected again. By
default, auto-online mode is not active. To activate it, issue AT+WIOM=1,”GPIO02”,1,0 followed by AT+WIOM=4.
This setting needs to be set once, and will be saved in memory.
Confidential, the whole document is the sole property of Maestro Wireless Solutions ltd.
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