Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Yes, I had to put this project on hold for the time being, I put a brick patio in the back yard. Anyways, back to the project now. BUT, I've decided to go a different direction. Instead of using led's to keep count up to 21, I want to use 2 7 segment displays instead. I figure this would be...
Hi thanks for your help as always, I like figuring this stuff out.
Unfortunately, I'm on the road for work and I don't have my large whiteboard with me, I'll do what I can without it...
There isn't a pulldown resistor on the Qh output, (at least not the way I see it). Maybe you saw my two...
OK, here is revision 2. My attempt at incorporating the 74HC7002, in order to reset the 74164.
Other changes I made were added capacitors to help with the flow.
Made the A input of the 74164 a pulldown.
Attached the CLK to the SPST switch, hopefully this is allowed.
Please check it...
Ok experts, here's my first try at a circuit like this.
This obviously isn't the full & final circuit, just a test to check my theory. This, I hope will light up 7 led's sequentially for each momentary switch press and on the 8th press reset too nothing lit.
2 questions I can think of so far...
ok, I'm trying to feel my way through drawing a circuit diagram based on the data sheet of the 74ACT164. I'll post that when I finally finish.
But, unfortunately the 74ACT164 isn't in stock at mouser or digikey. Are their any other options as far as suppliers?
TechnoGilles & mbarazeen, thanks for the input, I will look into those avenues.
I do have the 3 - prong led's. I guess technically they are tri-color because you can light both colors at once and make the third. I figure I will just have a constant supply of power to the red led and allow the...
I'm trying to make a row of 21 bi-color leds, in their normal state they will be all red, but when you press a momentary switch the first one would change to blue, press the button again and the next would change to blue, while the rest stay red. Once all 21 leds are blue and press the button...
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