When using the Arduino for programming our Attiny84A, we found that the digital pin map was wrong. It took about a month to figure out since we were in the process of developing a product and ...

Important for ATtiny users: Note that for the ATtiny, a shift bit register will be needed. We used the SN74HC595D for this. The code initiates by assigning the pins in terms of a static constant which ...

Having had such quick success making a microcontroller project using an 8pin ATtiny85 and programming it with Arduino, I though I would try a more elaborate project, one that has been on the back ...

We feature a lot of clock builds on HaD, and the reason is that they are cool. Even simple ones are cool. Not everyone can say they built a clock. [Chris] took a ride on the DIY Clock train and came ...

[Trent M. Wyatt]’s CPUVolt library provides a fast way to measure voltage using no external components, and no I/O pin. It only applies to certain microcontrollers, but he provides example Arduino ...