Here’s a new option for building your own AVR programmer. It’s called the MkII Slim and the diminutive size makes it live up to its name. The design is rather spartan, using just three chips ...

So it’s little wonder that someone like [Aaron Christophel] would try to repurpose those sub-$3 AVR programmers that ... need to re-flash the existing ISP firmware with one that lets you upload ...