This board allows you to attach an attiny chip to an avrisp or equivilent. It maps out rx, tx, and power/ground to a four pin header. Only build it on a pcb. You could do it on a breadboard, but it would be a lot less useful. To build it on a breadboard you would just map out the pins to some female headers. On a pcb, it would be hard to build on your own but it would be possible to do. You would follow the traces on each layer and it would work. The best thing to do is to order a pcb.