| Mole hills can ruin your carefully manicured lawn in no time at all. If you guard your precious garden with an electronic mole repeller, thi...
More about repellent (3)
| Low-cost commercially available mole and gopher chasers may do a great job, they do this at the expense of many batteries. With this circuit...
| Controlling the molechaser-buzzer with the ATtiny13A watchdog-timer. The average current consumption is now reduced from 4mA to 0.43mA.