Turn on GSM Module

[Osman Gutiérrez]

Hi Viacont team,

I am trying to use the GSM Module (Developer cable and connected from Raspberry), but I never gotten the AT+GSM=ATZ response

The commands secuence were:

>>> AT+CPU=GSM:SWITCH

>>> AT+CPU=GSM:OFF

>>> AT+CPU=GSM:ON

>>> AT+CPU=GSM:SWITCH

>>> AT+GSM=ATZ

--- No more  +CPU=GSM output

I am using  VehiclePiDemoTCPConnectAsyncTask.java example

Firmware: SDK 1.2.5.3, vpi-2c6a424-41.hex

Could you help me?

Regards

[Kalin Nakov]

Hello Osman,

Except the development cable, a 12V/24V power supply cable needs to be plugged in the white connector. You can use the patch cable with the package and connect the red (PWR) and black wire (GND) to a 12V power supply. The power supply has to provide at least 1.5A of current. Without this power supply the GSM modem will not start.

Regards,

Kalin

[Osman Gutiérrez]

Thanks Kalin,

Is not inconvenient that plug the white connector and the Raspberry Pi at the same time?

Regards

[Kalin Nakov]

We've noticed this is not convenient to have both cables plugged in when doing software development, that's why in Vehicle Pi 2 we have replaced the USB development cable with a development kit (the PCB on the left). The development kit has it's own step-up converter and is able to both communicate with the PC and power the Vehicle Pi just from the USB port. It's designed for convenience and has also buttons to simulate input events, screw terminals and a connector to a vehicle simulator device.

The Vehicle Pi 2 is fully backwards compatible with old one. The new features include optional 3G and optional Bluetotoh 4.0 LE. The availability will be announced very soon.

[Osman Gutiérrez]

Hello Kalin,

At the moment I do not have a development kit, I will try plug in only the TX and RX Raspberry PI with de VehiclePi board, after I will connect PWR and GND to a 12V power supply.

I hope to

Espero poder recibir +GSM output from raspberrypi console.

Thank you for your help.

Regards,