How Stuff Works: Part 1- How to make a Counter using a Calculator

This project describes how to make a counter from an old calculator & a switch. The switch would be a push button switch, micro switch or a magnetic switch (like would be used on a door or window for an alarm system). It requires some level of logic to figure out how the keyboard of your calculator works and some basic soldering ability.
This series was created by Mugzee for distribution by SilentStrike46.

[@annelieseocallaghan801]

Great, informative video!

[@CMCustom112]

That calculator is older than the internet itself.

[@muflatu]

but do his job very good :)

[@CMCustom112]

Takes a licking, keeps on ticking.

[@viceversa1439]

what kind of electronic part which added and wires to calculator?

[@subhashsaini7755]

Thanks sir

[@karslake10]

problem is that the cal shuts itself off after 5 minutes of not using it....

[@rajdulariengineering]

super brother

[@EdBoonSucks]

That set of screwdrivers are horrible. They have no handle-grips, nor is there much leverage to use when removing stubborn screws.