Hey guys can you help me think of an application of counters. I need it to be a a little complex but not expensive. Digital clock came to my mind but i think it is very common. Can you help me? Thanks.
A tachometer can be built with 2 counters. One counts the output from a fixed freq pulse source and the other counts revolutions. It is really just an event per period of time counter.
few weeks before i built a Mutiplication table quiz game for my daugther for her school exhibition, there will be 12 LEDs on left and another 12 on right, that light up by a slection micro switch (12 left , 12 right) its like you sleect one number between 1 and 12 on your right and another on your left (indicated by LED)
then press check button and it will display the answer multiplying both numbers. the idea is for example to multiply 4x5 the circuit counts from 1 to 4 for 5 times and holds, the total clcok count is displayed using a 4026 7segment driver.
its bit complicated but just suggesting if you have interest. i used around 30 ICs. for selector and conter i used 4017.
you can think of making an electronic lock, that will be unlocked when few buttons are prssed in sequence, if the sequence is not followed then it will remain reset.
I'd build 4 separate blocks: a variable frequency oscillator as timebase, 2 counters (binary and/or decimal: tough choice) and an N X 7 segment display. The creative angle is in how flexible the interconnections are. It can serve a lot of functions based on how they're linked. Once built it'll be a handy tool from then on. I've retasked my blocks on a regular basis since built ~1987. G.H. <<<)))
No, the clock just has to be sufficiently fast. The user provides sufficent randomness by having no control over how many microseconds their finger presses the button. This is a very standard technique that is used in everything from security systems (to re-scramble combination lock displays) to games toys.
Acceleration and deceleration times for motors under test. Unloaded how long does it take a motor to achieve a specific RPM? How long does it take under known loads? The same is true of deceleration. If I release an object held by an electro magnet how long does it take from the collapse of the magnetic field to fall a given (known) distance?
Hell, there must be thousands of applications for counter/timers.
Thank you very much everyone for your comments. I love this site. Anyway, I am planning to make now a Christmas light with different modes(fast blink, slow blink, alternate colors using bi-color LED) adjustable by 1 tap switch. The mode will defend on how many time you will tap the switch. How was that?
Thank you very much everyone for your comments. I love this site. Anyway, I am planning to make now a Christmas light with different modes(fast blink, slow blink, alternate colors using bi-color LED) adjustable by 1 tap switch. The mode will defend on how many time you will tap the switch. How was that?
Thank you very much everyone for your comments. I love this site. Anyway, I am planning to make now a Christmas light with different modes(fast blink, slow blink, alternate colors using bi-color LED) adjustable by 1 tap switch. The mode will defend on how many time you will tap the switch. How was that?