Bar graph LED


Posted on Feb 4, 2014

Using a 555 with perhaps a 4029, and I would add a 4511, then connect the pins (using resistors of course), of the bargraph leds, to `a-g` pins of the 4511. To top it all off the graphs I received are all common anode, which is a pain because I`m not too savy like that. I know what a 555 timer is but I wouldn`t have a clue as to wire them with what as was suggested here. Let alone to make it so it increments with each button


Bar graph LED
Click here to download the full size of the above Circuit.

press. well, I breadboarded everything but I couldn`t get the damn thing to work. Don`t know if I missed a connection somewhere or what, but no joy all the way. To top it all off the graphs I received are all common anode, which is a pain because I`m not too savy like that. I know what a 555 timer is but I wouldn`t have a clue as to wire them with what as was suggested here. Let alone to make it so it increments with each button press. Sounds great man. At this point it`s more of a learning experience for me than anything else; and if others can learn something to then great! I`ll shoot ya a PM with what I want but in a nutshell I`ve got some anode common LED bar graphs that I`d like to increment with a button. It`s probably easier to wire up than I`m thinking about. Edit: Also, is this a screen prop that will appear on camera It`s slightly easier to do if it is acceptable that the LEDs may shimmer slightly when shown on video. Edit edit: And what d`you want to run it from Three AA cells is easiest from an engineering point of view, as the micro is a 5V device (that will tolerate 4. 5) Thank-you for your offer Hfuy but using logic gates are a great way to learn some circuitry. I`ve got an Arduino but I find the circuits themselves fascinating in their own right and would just love to get a handle on them. One of those crawl before you walk things you know Common anode displays are going to make it slightly more...




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