Is it an AM radio? Yes. Is it the 555’s LED blinking circuit? Yes. How about a hexadecimal counter with a 7-segment display? That too. Five different colors of LEDs to meet your flash needs? even though!what Yes This magical device? Is it one of the old-fashioned 30-in-1 or 50-in-1 “Science Fair” kits with jumpers and springs? almost!
when [grandalf]Friends of, showed them a project with a 555 timer installed on an Arduino expansion board, and they realized two things: the whole “you can do this with a 555 timer” meme is interesting, and “I have an old I don’t know if I can build one?” The answer is yes, there are more.
Starting with the 556 timer and inspired by the old spring and pullover kits of the past, [grandalf]of “556 on Proto ShieldThe project evolved into what they called the Retro Shield creation. Like many hacking projects, it snowballed, and it now includes several built-in circuits and components. Breadboard jumpers are used to connect components through strategically placed pin headers, many of which are !
To make everything fit, some parts were replaced by more compact parts, such as LM386 instead of LM380. The AM radio part is provided by the integrated radio chip ZN414. As the scope spreads, [grandalf] Finally, a so-called sidecar was added-a board containing controls and speakers, suspended on the side of the Proto Shield.
There is no mention of whether Retro Shield is integrated with Arduino. Despite this, Retro Shield has been used to receive local AM radio, flash LEDs, and use LM386 to amplify audio.like [grandalf] We are sure that Retro Shield can be used for more purposes.we hope [grandalf] Extends this concept and inspires future hackers to answer the question “I wonder if I try this. ”
If you haven’t paid attention to one of the all-in-one kits, please check this 200-in-1 kit disassembly and review. Of course, if you have your own hacking project to share, please let us know through the prompt line!