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raverbashing 8 hours ago

Makes me wonder if we could have a 555 circuit with a trigger time of 55 yrs

brucehoult 2 hours ago | parent | next [-]

Trivial with a 10c microcontroller ...

mnw21cam 7 hours ago | parent | prev [-]

How many capacitors do you have that can hold their charge for 55 years?

chromacity 6 hours ago | parent [-]

Every EEPROM is basically that, and they're designed for data retention of around 100 years. I imagine it wouldn't be hard - embed two metal plates in glass?

PunchyHamster 3 hours ago | parent [-]

You don't check the eeprom value by flowing current thru the cell as you do with cap