For the past several weeks we’ve looked at blinky LEDs, 555 timers, and resistors. This week it’s time to put it all together into an application. A YouTube subscriber suggested the project as follows:
How would you go about having an led blink twice, then a different one blink twice, then back to the original one, and repeat; similar to a navigational light system on an airplane wing?
The stipulation was that the circuit needed to be built from a 555 timer. Takes some time to think about the problem. Maybe re-watch some of the other videos. When you’re ready continue to the answer below.
5 thoughts on “Cascading 555 Timers for Custom Blinking LEDs”
I have no background in electronics but have a basic understanding how some components relate to each through working on motorcycle systems for??? (too long LOL) After watching the first two 555 timer video’s I think I have a fair idea how it’s going to be done with some extra diodes and capacitors? I’ll check out the answer after posting this
I was getting a bit confused by the direction diode was drawn until a little further on in the video when it was explained. I’m used to a common ground and don’t even think about current flow to ground through the PNP transistor. I wondered how it could get a ‘negative’ signal. Still have a lot to learn Another great video. Thanks
Thanks for watching!
Hey Jason I really like this video. I’m trying to get my 15 year old daughter into electronics and I was wondering if you have the schematic for this video. This is a great design but I really need the components to build her a working stop light for her bedroom.
Also, I was wondering if you would be available to let me run some ideas past you, in confidence and possibly a partner in, ideas for real life application. I have several ideas or, I should say inventions, that I would love to talk to you about.
Thx, I really like your videos so keep it up.
The only schematic I have is the piece of paper that appears in the video. Is there a particular component you are curious about?