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[First] Stylophone NE555 based on instructables Retro-Stylophone-NE555-Based project 9
[First] Stylophone NE555 based on instructables Retro-Stylophone-NE555-Based project
[First] Stylophone NE555 based on instructables Retro-Stylophone-NE555-Based project
😇 This is my first PCB design.
🥰 If you have any comments, I would be happy to hear them.
The GitHub repository of this project ! Fell free to participate 🙂
https://github.com/IGLOU-EU/open-stylophone
Since you said this is your first PCB design, if you haven’t noticed yet JLCPCB (If you’re using them) has “basic” and non-basic components, the difference being basic components don’t charge a reeling fee, so theoretically you can get boards made for a lot cheaper if you have all basic components.
It’s actually more complicated though, because basic components still have a wastage requirement.
I really wish there were more companies that did this style of hardware prototyping.
Oh man I want a stylophone and I have most of these parts!
Could you please elaborate on how the ‘ribbon keyboard’ works?
I was just thinking “I’d like a stylophone” after seeing a youtube video last night and then this pops up. What a serendipitous coincidence… or are you the all-knowing Al Gorithm?
I think by this point, you gonna see this mentioned a lot if you go through my post history.
It makes sense to split up a schematic into function blocks on big projects.
But simple stuff like this should be a single schematic without function blocks. You just make it harder to read what is connected to what when the project has this few components.
The input protection diode being a 1n4004 will drop a lot. Use a schottky instead. Also for 5V you better off using an upward pointing arrow. Splitting this up as said makes it harder to read a bit.
Have fun, good project 🙂
Nice. I just bought the Bowie one a week or so ago for my son who is a big Bowie fan and was thinking I could build myself one of these. Now to find the time.
Ok, this is the GitHub repository of this project !
Fell free to participate 🙂
https://github.com/IGLOU-EU/open-stylophone
Whatever you do, don’t use an ordinary ‘555. Use a CMOS version, like TI’s TLC555CPSR. The older bipolar ‘555s are terrible to work with. They generate huge transient loads on their supply pin when they change states, requiring at least 10µF of bypass. Speaking of which, you need at least some bypass on U1. Another 1µF cap like C4 will do nicely.
C7 is backwards. The + terminal should face the driver, like C9.