cehic1994's video: Old calculator and reed magnet switch as counter

A simple counter, based on low cost calculator. A simple counter is based on low cost calculator where the ‘=’ key is wired through a magnetic switch (like the one on a bicycle speedometer) and all you have to do is key in :1 + =. each time the switch is activated by the magnet in each revolution, the ‘=’ key is ‘pressed’ and the number increased by First, turn on your calculator and press: "+ 1 =" It should display "1." Now (This is very important), press "=" again. Does it read "2" as the answer? If yes, continue foreward. If not, you need a different calculator that will do this. Tracklist: Ship Wrek, Zookeepers & Trauzers - Vessel [NCS Release] WATEVA - See U (feat. Johnning) [NCS Release] Razihel - Love U [NCS Release] Music Released and Provided by NoCopyrightSounds: • http://soundcloud.com/nocopyrightsounds • http://instagram.com/nocopyrightsounds_ • http://facebook.com/NoCopyrightSounds • http://twitch.tv/nocopyrightsounds • http://twitter.com/NCSounds • http://bit.ly/SpotifyNCS Please subscribe. Contact: c.ibrahim.vkl@hotmail.com Like and share: https://www.facebook.com/Electrical-Engineering-Electronics-Projects-1622449761344737/ Track: Michael White - Got You [NCS Release] Music provided by NoCopyrightSounds. Watch: https://youtu.be/--76GiSUEyQ Free Download / Stream: http://ncs.io/GotYouYO