555 IC, Covid-19, Astable mode, Monostable mode, Hand wash
Abstract
Entire world is taking all necessary steps to ensure that they are prepared well to face the challenge and threat posed by the growing pandemic of COVID 19 – the Corona Virus. Recommended measures to prevent infection include frequent hand washing and social distancing. To support the people, especially elders, this work present a simple low cost timer using 555 IC which remains them the time to wash their hand and time duration to wash their hand.