Hi everyone!
I know I haven't been very active on here for a week or so now, but I'm still interested in learning from you folks. I kind of feel a bit bad asking for lots of help, but not helping out with some of the more basic questions which appear on here, so please forgive me for that.
It's the weekend now, so I'll finish my maths homework and have a look at the boards to see if there are any questions I can help with.
Anyhow, here's my question.
I'm considering making a frequency counting circuit, with a seven segment display output. I'm not too concerned about the range of measurable frequency with the project, but I would like to have a fairly wide range, to test anything in the near future.
A quick search on Google revealed this circuit;
http://www.eleccircuit.com/wp-conte...aler-with-counter-by-ic-digital-451174190.gif
However, there's a couple of things I don't understand, and would appreciate some help with.
1. what are the switches along the top for? That's a lot of switches to have on the control panel, so I can't believe that they are for general operation.
2. As for the actual input, would that be via the 'load'? If not, what would be the input to the circuit?
3. What does it mean by UP/DN?
4. What does it mean by latch?
My apologies for the number of questions, I have tried my hardest to get a grasp of this circuit (by looking at datasheets, etc) but have so far failed.
I'm also sorry if I haven't provided you with sufficient information. Please ask for more if you need some.
Thanks for your time guys,
Sparky
I know I haven't been very active on here for a week or so now, but I'm still interested in learning from you folks. I kind of feel a bit bad asking for lots of help, but not helping out with some of the more basic questions which appear on here, so please forgive me for that.
It's the weekend now, so I'll finish my maths homework and have a look at the boards to see if there are any questions I can help with.
Anyhow, here's my question.
I'm considering making a frequency counting circuit, with a seven segment display output. I'm not too concerned about the range of measurable frequency with the project, but I would like to have a fairly wide range, to test anything in the near future.
A quick search on Google revealed this circuit;
http://www.eleccircuit.com/wp-conte...aler-with-counter-by-ic-digital-451174190.gif
However, there's a couple of things I don't understand, and would appreciate some help with.
1. what are the switches along the top for? That's a lot of switches to have on the control panel, so I can't believe that they are for general operation.
2. As for the actual input, would that be via the 'load'? If not, what would be the input to the circuit?
3. What does it mean by UP/DN?
4. What does it mean by latch?
My apologies for the number of questions, I have tried my hardest to get a grasp of this circuit (by looking at datasheets, etc) but have so far failed.
I'm also sorry if I haven't provided you with sufficient information. Please ask for more if you need some.
Thanks for your time guys,
Sparky