DIY NE555 LED Chaser circuit (CD4017)

[@DIYGUYChris]

All files are available for download, check the video description.

[@oliviergrimard7345]

Hi Chris, can you tell me what slide switch and potentiometer you're using for that? If you have the SKU for mouser, it would be great. Thanks

[@DIYGUYChris]

Hi, you can visit the LCSC website and search for C97444 and C480340 😊

[@ArduTechs]

❤❤🔥

[@tommstanley6021]

Hi Chris. That was a really nice video, thank you. I'm wanting the LED's to fade when they come on and off and I am experienced with many different circuits that fade LED's. I have tried basic cap and resistor pairings at the LED's and also by using the 4017 outputs to drive bc547's transistors that turn on the LED's, again with different arrangements of caps and resistors on the base and/or emitter sides and I've also tried resistor/cap arrangements that can turn square waves triangle or sine, with and without the transistors. In all cases, I can get a very controllable fade out of the LED's but cannot get them to fade on. Is there something about the output of an LM4017 that will not allow it's waveform to change or for a capacitor to slowly charge? Or something else that I just can't figure out?

[@DIYGUYChris]

Fade in and out? Maybe you want to take a look here kzbin.info/www/bejne/d4WqlYKIh5yZgac

[@tommstanley6021]

@@DIYGUYChris Thanks for that. I hadn't considered using an ic in this way ... hmmm 🤔 I'll try this approach and see what happens. Subscribed !😁

[@bigsbyfreak]

Could you post schematic? Thanks in advance

[@DIYGUYChris]

I updated the description of the video, there you can find a download link of the circuit schematic (PDF).