ATTiny Fuse Doctor

All Amtel AVR Microcontrollers have what are known as fuse bits. These special bits determine how the microcontroller is configured. Some fuse bits may determine whether an external crystal is used or whether the reset pin for example can be used as a IO pin. In the case of the reset pin, configuring it as a IO pin will prevent the processor from being programmed via an ISP programmer. You may wonder why you might do this. An 8-Pin microcontroller has 5 IO pin and a Reset pin. If you don't need