dj_ash1983
New Member
Hello to all. I'm new here, and I'm kinda noob on electronics stuff.
Recently, our Digital Circuits instructor is throwing yet another project on us to complete this week, and it's about making a digital clock made out of only pulse generator (analog circuit using LM555), decade counters (74LS90), BCD decoders (74LS47), AND Gate ICs (74LS08), and 7-segment LEDs. Our instructor intentionally gave us only the second-hand section of the diagram so that we have to use or brains to figure out the rest of the circuit (the minute-hand and the hour-hand). Yeah, it was a challenge to me coz I really got interested in these kind of projects, but I'm about to give it up already coz I'm all out of ideas. So far, I got only the "ones" part of the minute-hand section, and I had a really hard time to figure out the "tens" part. If you're getting confused about what I just said, let me elaborate you about this using an illustration:
**broken link removed**
This is what should look like in a clock, right?
**broken link removed**
But this is what I got so far.
As for the circuit diagram, you can take a look at it here:
https://i13.photobucket.com/albums/a251/dj_ash1983/circuit.jpg
I really need help from you guys so I can pass it on time. Thanks in advance, I really appreciate it.
Recently, our Digital Circuits instructor is throwing yet another project on us to complete this week, and it's about making a digital clock made out of only pulse generator (analog circuit using LM555), decade counters (74LS90), BCD decoders (74LS47), AND Gate ICs (74LS08), and 7-segment LEDs. Our instructor intentionally gave us only the second-hand section of the diagram so that we have to use or brains to figure out the rest of the circuit (the minute-hand and the hour-hand). Yeah, it was a challenge to me coz I really got interested in these kind of projects, but I'm about to give it up already coz I'm all out of ideas. So far, I got only the "ones" part of the minute-hand section, and I had a really hard time to figure out the "tens" part. If you're getting confused about what I just said, let me elaborate you about this using an illustration:
**broken link removed**
This is what should look like in a clock, right?
**broken link removed**
But this is what I got so far.
As for the circuit diagram, you can take a look at it here:
https://i13.photobucket.com/albums/a251/dj_ash1983/circuit.jpg
I really need help from you guys so I can pass it on time. Thanks in advance, I really appreciate it.