Re: Building myself a BlueSaab!

Posted by Pilkerton on Jun 09, 2016; 6:55am
URL: http://bluesaab-forum.90.s1.nabble.com/Building-myself-a-BlueSaab-tp417p441.html

se4587 wrote

So v4.0 of PCB (just finished; after testing confirms they are good, I'll release to the wild) has the ISP header for flashing a bootloader to the Atmega. This is also because the new pcb design went 100% SMD :) So removing the atmega is no longer an easy option and we need a way to burn bootloaders because atmegas with bootloaders preprogrammed are expensive for no reason.

Having said that, you'll need 2 arduinos if you wanna burn the bootloader to a blank 328 chip; one as the ISP (in system programmer) and one as the chip to be burned. It's easier to buy a bootloader burner like Karlis said, but if you're only doing 1 or 2 or 3, it's prob not worth it. You can google how to do it on a breadboard if you're only doing that many. It's just a few wires.

That's great news - adding the ICSP header brings it closer to being an Arduino. The requirement for having two Arduinos just to burn a bootloader seemed like overkill to me, so I went with a cheap USBasp programmer like this one (OSX and Linux have built-in drivers; it works with avrdude).