The USB voltage/ current meters can be found on eBay and similar sites for between £2-£4 I originally bought this one for finding the best positions with my solar panel on camping trips. This one looks interesting as it covers a large range of voltages
Managed to get a Pi setup and hooked up to the Aduboy I suck at Linux and have never used avdude before would this be correct to flash it?
Hahahah! unbricker device. Sounds so overkill. You can also drill holes in the aluminium case to get easier access to the programming pads.
After the first reflash, I have not experienced any more issues (after the first flash the get the right fuse configuration). Also my uploader protects the Arduboy futhermore so I am pretty confident now.
This could work but you would still need to hold it down or clip it somehow. I like your idea using the screw bosses for alignment, I hadn’t actually thought about that. Maybe with that being able to align the X/Y axis the Z wouldn’t be so difficult to manage with one hand.
I don’t know how many people would buy this, it’s probably better for me to make a handful of these myself first. I’ve got quite a few bags of pogo pins so maybe I could sell them both assembled or as a kit for people who don’t mind to solder and save 5 dollars.
I am waiting for 2 events, first I need to receive my aliexpress pogo pins (already ordered a bag but forget where I put them) and an evil hex file needs to kill my last untouched Arduboy.
Then I want to make a simple 3d-printable adaptor for flashing it. I do not want to use the screw holes, but the outer shape of the Arduboy bottom part (to avoid having to lift the pcb and make the flashing process as fast possible)… and get that in thingiverse of course
Actually this was originally the plan for the Arduboy. It would have been a 328p with the FTDI on some kind of dongle. But the need to charge it on the go and all of the other features of having usb is too convenient… but it was something I was working on to try and keep it as thin as possible.
I’m realizing that if I just included standoffs and screws with the PCB you could just bolt the second board onto the back.
The 3d printed case could be an “upgrade” from the bolt together kit that users could download.
@eried is always coming up with stuff faster than I can put it together lol. What do you think? Could we make the PCB so that it could serve dual purpose bolt on and be loaded into a 3d printed cart holder? I think so!
my Arduboy (pre-order version) seems also bricked, after I uploaded a new sketch, the IDE could not find arduboy anymore.
I tried the reset button, flashlight mode and also new micro usb cable. So I had to try this, I got my isp programmer and some wires and set all up, started the process andavrdude told me, he had problems with writing.
I’m not completely certain, but I think the lock fuses on some of the kickstarter Arduboys weren’t set properly, so it could be that the bootloader had been corrupted since the avrdude output states Error while burning bootloader..
In case anyone with more insight than me read this, other suspect lines are here:
avrdude: reading input file "0xcb"
avrdude: writing efuse (1 bytes):
Writing | ***failed;
################################################## | 100% 0.06s
avrdude: 1 bytes of efuse written
avrdude: verification error, first mismatch at byte 0x0000
0xff != 0xcb
avrdude: verification error; content mismatch