3G Firmware Over The Air Board

Using Arduino Programming Questions
1

Hi all,

I am planning to design a board where I can push new firmware over a 3G network. The firmware size requires a Mega, so my basic plan is to use a Mega as a target/main MCU, then have a SimCom modem, and an ATtiny85 and SD card as a programmer. Has anyone else used a similar setup and made it work? Or have other suggestions for better hardware setups? My plan is to follow guidance from this page, but most of the info out there is from 5+ years ago. Any and all suggestions are greatly appreciated!

2

I don't know the answer. The only reason I looked at your Thread was to find out what FOTA means - but you have not explained that.

Maybe you will have more success with a Title that everyone understands - edit your Original Post to change the title.

...R

3

Thanks for the heads up! Firmware over the air. Updated title.

4

Has anyone worked on this stuff before? I've seen some material on pushing sketches from SD cards, but wondering if it's feasible to do so with an Attiny85?