| This ATtiny85-based mains relay timer cuts power to unattended soldering irons after 15, 30, 45, or 60 minutes. Timer selection uses success...
| This ATtiny85-based mains relay timer cuts power to unattended soldering irons after 15, 30, 45, or 60 minutes. Timer selection uses success...
| With this circuit featuring a single ATtiny85 microcontroller, you can simultaneously obtain three square waves of different, user-defined f...