– Buzzer: An audible buzzer provides an additional layer of feedback, alerting users to test results. – Library for Arduino: The shield comes with a dedicated library for Arduino, simplifying ...

Posted in Arduino Hacks Tagged analog multimeter, arduino nano, continuity tester, pwm, rtc, temperature sensor Continuity Tester Uses The ATtiny85’s Comparator November 25, 2017 by Anool ...

Now in today’s world, for $5 you can throw in a coin cell, a small micro with adc, a buzzer, an led and make it tiny, auto power off, protection if you connect it to the mains by accident…. etc.