P1 Complete Gauntlet

th_4017Tutorial.jpg


Here we go.

I have placed the 4017 right next to the 4011. In the video the orientation is the same as the 4011. The notch is to the left.

There are 16 pins on this chip. Pin 8 is hooked to ground. Which is as you remember is the Blue line.

Pin 16 is hooked to hot or positive voltage. As you remember is the Red Line.

Short pins 13 and 15 together. You can use a bent lead as you did with the 4011.

In the video I jumper pin 8 to pin 13 using a wire jumper from the breadboard kit. You can use a solid wire or whatever you want. This makes pin 13 and 15 grounded now.

I have taken the clock from the 4011. This is pin 4 and jumpered it to pin 14 of the 4017. Pin 14 is your Clock Input.

Pin 12 is your carry out. This is a separate clock.

At this point we are ready to hook our LEDS to the output pins. Remember the Short Lead on the LED goes to ground. The long one goes to the output pin.

In the video I have hooked a number of LEDS to the output pins.

You will see a cool sequencing effect.

Play with this. Change resistance on your 4011 and you will notice the sequencing LEDS will change speed. This is because the clock has changed speed.

Next week we will use these outputs to create a Predator Clock Display.

Let me know how you do.


Cary :)
 
Hi Cary, the audio was better this time, but it's helpful to have it written down as well. Your explanation of why we're connecting things up this way has really simplified things for me, thanks bro, the leds are flashing away nicely, Derek :)
 
**** I also would like to start but I still wait on my capacitors but my leds already arrived.

Greetings Guido
 
We will continue next week with the Predator Clock Display. Once we get everything proto boarded and it is to our liking. I will show you how to use Perf Board and hot glue to mount everything.



Cary :)
 
Hi Cary, enjoying it loads so far, after you told us which bits to get up I looked up what they did, pin outs etc, then once I followed your step by step vids everything came together nicely. It's nice to finally understand electronic components enough to actually enjoy using them - cheers, Derek :D
 
How are you limiting the current that goes through the LEDs, so they don't run too brightly and burn out? Most of the time, LEDs have a maximum current rating. Wikipedia's article on LED circuits goes into all sorts of scientific detail, but if you just want the basic information, this LED calculator can help out.

I'm just asking because I didn't see any resistors in series with the LEDs.
 
As long as the LED is pulsing and not on all the time a resistor is not necessary. If you add resistance to the outputs it will alter the speed of the clock.


I have a display I built 20 years ago and used it all the time in my borg costume and it still works fine. If you look at the diagram on wilkipedia it is a constant current source. Not pulsed.

Cary
:D
 
No problem Cary, I've been busy with family staying over, I've also been trying to get my skin finished, now that's just about done I can concentrate on the armour now, Derek
 
Just happy to be working. It is tough out there. I am lucky I have work coming out my ass.

I am lucky. My profession is the number 2 profession to get into for the future.

Cary :rolleyes:
 
Work coming out the ass doesn't sound like a good thing! But you're right...work is a good thing because it brings in money :rolleyes:
 
Still working alot. They have added 3000 more pieces to our inventory. We also have to re inventory 12000 pieces. So I am real busy right now.


Sorry.

Cary
 
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