flyingbrick

Arduino stuff/ programing/so cheap

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Just now, h4nd said:

Oops, tho SDI can support multiple devices.

Edit, analogue amp here: https://www.aliexpress.com/item/32965912818.htm $34 for 2x

or here https://www.aliexpress.com/item/32875383430.html @NickJ

 

Perfect!

I'll put that in my build list, trying to plan this entirely so I can plug it all together over a weekend, not in the mood for development on my own projects right now!

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Year 12s project to make a clock that re-draws the time every minute - it's upside down, but 15:10 is what it's writing...

 

 

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"Beta testing" 

Nobody knows what it means but its provocative. Gets the people going!

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i really want to make one now haha. Seems fun!

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18 minutes ago, flyingbrick said:

Needs to be on whiteboard with a duster to erase the writing afterward

Immediately, before you can read the time.

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1 hour ago, flyingbrick said:

Needs to be on whiteboard with a duster to erase the writing afterward

That's the plan! There will be a seperate arm with a duster that will erase the time each minute. I'm kinda keen on the idea that it only erases the number that changes, but to be honest the code works OK (and is plenty sophisticated for a 16 yo!).

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you can add a 4th servo to the device, and spin the marker around 180deg and have an eraser on the end, and trace the same path it wrote for the last number, and write the new one

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