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I'll start.

The RP2040 Stamp

Brian Swetland reshared this.

Wintermute_BBS
Wintermute_BBS  
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custom built adapter for #SC16IS750 #UART to connect to
#I2C bus (works).
picture of a custom prototype PCB
#I2C #sc16is750 #uart
𝓻𝓻𝓪
𝓻𝓻𝓪  
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simple / dirty fm transmitters which you can etch directly from the book.

the book: https://test.roelof.info/projects/rd/

stack of non-etched pcb's and a book open on the page of a schematic for a simple FM transmitter. The pcb's can be etched by directly using the book's page as a mask.

R&D: a low-end rich media publication

Part showcase, part recipebook, this publication is a blog-like overview of works by Dennis de Bel and Roel Roscam Abbing.
roelroscamabbing.nl - the premier resource for "roel roscam abbing" on the web!
Wintermute_BBS
Wintermute_BBS  
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@rra nice! and illegal where I live (if you actually start to use those, at least)
@𝓻𝓻𝓪
𝓻𝓻𝓪
𝓻𝓻𝓪  
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@Wintermute_BBS yes, for educational purposes only. However, these are also microfm designs and don't have an amplifier at the end stage so the range is < 10m. A bit like those things for in the car, but messier.
@Wintermute_BBS
elrido
elrido  
Sinclair ZX81 back porch video signal fix, designed by Ziggurat Communications Ltd.:
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