davedarkoMy favorite time of a project cycle!
| parts | price | amount | total |
| 100pcs common anode CA RGB LEDs | 3.41 EUR | 1 | 3.41 EUR |
| CD4017 NE555 LED chaser board | 1.15 EUR | 1 | 1.15 EUR |
| LM3915 "funny" diy kit board | 1.50 EUR | 3 | 4.50 EUR |
| Total | 9.06 EUR |
Thanks to current political events that makes: 9.73 USD
With a little creative air wiring this will make a lovely solder Sunday :)
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Just in case you didn't notice the difference, the LM3915 has logarithmic steps - ideal for a VU meter display, but not as good for drawing accurate waveforms. It would make a cool RGB music display :-)
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Thanks for pointing that out! - I was aware of that, but could have mention it somewhere :)
I also bought 5 LM3914 to switch out, but I thought that the max speed overall would be pretty good/best for audio stuff and I plan to play around with some RC filters - basically keeping some options :)
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Glad you bought so many 3914's, 'cause it just occurred to me two (or four?) of those could be used to make an X/Y 'scope, with three Lissajous patterns :)
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@esot.eric - that's a good idea!
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