[Alkerion]

Thanks Michael!

It works now, the problem was between the keyboard and chair (known as PEBKAC).

I thought that GRN on the board mean Ground, and as I don’t have the BLACK/GREEN indication on my adapter, I put the Ground on it.

And guess what, the only thing I didn’t test is to reverse the adapter… I felt dumb 1s after having seen the picture.

My adapter is 5V, the Sparkfun we used is effectively 3.3V.

What I don’t understand is why I’m wasn’t able to upload FW through Arduino UNO, something I’ve already done.

A little guide for dumb people will be nice to have.

[Alkerion]

I’ve tried on another PC -> No success

I’ve tried with an older Arduino IDE -> No success

What’s wrong with your boards ?

Looking forward for your support to solve that issue.
Thanks

[Alkerion]

That’s not the cable, tried 3.

That’s not the PC, been able to upload your code to an Arduino UNO without any issue.

So there is something wrong with your board.

Boatloader ?

Possible to reset the board ?

Looking forward for your support to solve this issue.

[Alkerion]

I’ve tried to upload through an Arduino UNO, without success either.

[Alkerion]

A friend come home with his FTDI programmer from Sparkfun, we setup it and… same problem, impossible to upload code.

It’s very strange as the serial monitor seems to connect, but no output.

When we connect the adapter there is 4 red leds blinking a few time, then they turn OFF.

When I click on Upload the leds turn ON, then after a while I’ve the error message.

I own two boards, they both behave the same.

[Alkerion]

Yes I’ve downloaded your code on Github.

Direct error saying cannot connect, or error like this one :

Le croquis utilise 20810 octets (64%) de l’espace de stockage de programmes. Le maximum est de 32256 octets.
Les variables globales utilisent 1670 octets (81%) de mémoire dynamique, ce qui laisse 378 octets pour les variables locales. Le maximum est de 2048 octets.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x75
avrdude: stk500_recv(): programmer is not responding
…
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x75
Failed uploading: uploading error: exit status 1

Which drivers am I supposed to use ?
which programmer ?

[Author]

Posts