💬 FOTA (Wireless Programming)

[mmanzanelli]

hi, can i use mysbootloder with arduino mega2560? The mega is used as a node that manage 24 sensors / actuators, i use this by the number of pins needed. thnks

[manutremo]

@mmanzanelli I don't think you can, the Mega has a different memory structure not supported by the present bootloaders.

[badmannen]

I have a quick question. so I don´t screw things up more than necessary, What bootloader should I use on a barebone 328p? ... I was just going to burn the "mini pro" that ´@Guillermo Schimmel so kindly uploaded on GitHub. but then I realised ..that might be wrong ..
Can anyone guide me about what to burn in, I am making a bunch of" 2AA Slim-nodes"

Also I ahve 3 old ones, I actually don´t remember but If I understood things correct, the Channel have to be the same on all nodes on the network I assume , and by default it is set to Channel 76, unless manually changed in the "old" code before this FOTA-generation?

I think I read too much info so my mind is slightly confused now =) so I hope it was clear enough

[Guillermo Schimmel]

@badmannen 76 is the default. I uploaded different versions for all the channel numbers.

Have in mind that they all have to match (gateway and all the nodes).

If they don't match they aren't going to see each other.

[badmannen]

@guillermo-schimmel
Ok so If I push this one "MYSBootloader.ch76.8000000L.RF24_PA_LOW.hex" into the FLASH on my barebone 328P via AVRDudess
It should , in theory at least , do the trick ?

And then After I can upload any sketch on top of it, in the Arduino IDE, with just choosing "Programmer-----> USBasp"
which is what I use to connect to the 328P

[Guillermo Schimmel]

@badmannen

1st: In order to upload soft using a cable, you don't need to modify the bootloader. Any bootloader will work.

if and only if you want to experiment with FOTA (uploading firmware via wireless), then:

2nd: if you want to use FOTA and you choose MYSBOOTLOADER, then please check the fuses and lock bits, I dont remember them all. But it seems ok, have a try and let us know!

[badmannen]

@guillermo-schimmel OR Am I making things more complicated than I need? ... maybe it is easier just to copy your hexfile into -->
"ARDUINO_PATH" > hardware > arduino > avr > bootloaders

and then burn it in the Arduino IDE ?

[Guillermo Schimmel]

@badmannen are you sure that your arduino doesn't have a bootloader? why are you trying to modify it?

If it doesn't have a bootloader, or if you want to play with FOTA, then what you are doing it's ok, that is the way I did it.

[badmannen]

@guillermo-schimmel
Ok Perfect! , I will give it a go and see what happens . thanks a lot .. I just needed a little confidence boost to get going =)

Yes I wanted to Try to Use FOTA, just to check it out , at least it´s enabled if I push this bootloader in from the start

[badmannen]

@guillermo-schimmel Thanks a lot ! I got it all up and running node a couple of nodes. But now I confused myself . I got an Arduino Nano as a node that also acts as a repeater, what bootloader can I push into that one? I assume anycahnnel and 16MHz should do the trick since it got that crystal attached.

And also one thing that is not really clear in my head, I set the "Fuses&Lock bits" with the AVRDudess for my 328P barebone. But do I really need that? . If I load the bootloader in ARduini IDE for example I specify all those settings in the "board.txt" file. Or is that just to tell the IDE what settings is on the chip ?

If I clear these two things up I think I got everything sorted now =)