new design proposition

[CBcracker]

Terry King has these ISP programmers for USD$11.50.
http://yourduino.com/sunshop2/index.php?l=product_detail&p=114

No details unfortunately, but I have query in for something else so I'll ask him.

I also found these
http://www.simpleavr.com/avr/hvsp-fuse-resetter

http://mdiy.pl/attiny-fusebit-hvsp-doctor/?lang=en

mark

Fasttech sells a usbasp based on a mega8 for just under $4.
Or for less than a dollar in parts you can build a serial or parallel port programmer like the ponyprog that works with avrdude.

[gogol]

The digispark is a USB-ISP-programmer:
as soon, as you have installed littlewire, it acts like the USBtinyISP (as it is one hardware wise)

As littlewire is a c-application you can't install it from the arduino-IDE. So you need to install either the precompiled binary, which is in hex-format, or you can download the sources from littlewire and compile it with the avr-toolchain (you already have in your arduino-directory)
Installation is very simple: You need to call the micronucleus binary (micronucleus.exe for Windows) with the full path to the littlewire-HEX-File.

The only difference is, that if you buy an littlewire comes already preloaded and has the PINs for connecting the victim arranged in the Atmel 3x2 design (and it has an real USB-plug, not only the PCB)

http://littlewire.cc/

[Bluebie]

Only if that chip is able to be programmed by an ISP programmer. Nobody has written an attiny85-based HVSP device yet AFAIK, so to ISP program a chip which has it's reset pin disabled like the one on the digispark you need to erase the chip using a HVSP device first, which you can do with an attiny85/digispark and a couple of other components, and a 12v supply

[gogol]

done ;-)
http://digistump.com/board/index.php/topic,1039.0.html

Maybe you have some ideas, how the program can be extended, to give some feedback about the success. 
I tried with LEDs on PB0 and/or PB2, however that made the resetter not working.
I2C is no option as well, as you need therefore pullups on PB0 and PB2 :-(
Debugging is also not possible, as all six lines are used!

.g