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Re: [avr-chat] my USBasp programmer does not work but the one from ebay
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From: |
YuGiOhJCJ Mailing-List |
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Subject: |
Re: [avr-chat] my USBasp programmer does not work but the one from ebay is working |
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Date: |
Sun, 24 May 2015 19:16:37 +0200 |
On Sat, 23 May 2015 18:05:50 +0200
Rogier Wolff <address@hidden> wrote:
>
> > > This is a photo of my breadboard:
> > > http://yugiohjcj.free.fr/usbasp.jpg
>
> It looks as if you have "too many wires". This schematic should have
> just the CPU, a couple of wires to USB and a few (4) wires going to
> the target. Together with two zeners and a two resistors, I expect
> about 12 wires in total. I'm seeing about 3 times too many.
>
Really? I was not aware that the number of wires matters.
I will check how I can reduce the number of wires on my breadboard.
Anyway, I was maybe lucky but I have just successfully done a circuit using a
lot of useless wires here:
http://yugiohjcj.free.fr/elec-vusb-led-1.jpg
http://yugiohjcj.free.fr/elec-vusb-led-2.jpg
It is an USB connected breadboard that is controlled by a program on the
computer [1, 2].
I can switch on or switch off the LED.
So it works here with this project but it does not work with the USBasp project?
[1] https://www.youtube.com/watch?v=iA15vqa0Rk8
[2] http://www.wzona.info/2012/10/usb-duomenu-perdavimas-atmega.html