Hi guys,

I need to add AT commands to specific files into the APM 2.5 to automatically boot up a dronecell or SIM900 at startup

I already had that list of AT commands  working thanks to the patience of one great guy here. So now I just need to insert it into the APM 2.5 startup process

So basically all I need to know is which APM 2.5 file I should access and some quick way to modify / save it into the APM 2.5 ? I don"t feel like diving / experimenting/playing around with arduino as it will take me months to understand it.

I understand for instance that I should play with arduplane.pde and system.pde

Your help telling me "just do that and that", or a video link would be highly appreciated.

Thank you very much

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