Slothra, Arduino powered plushy sloth

slothra

[Daniel] sent in this project. He tells us it’s an Arduino powered kid’s toy that “furiously swings his arms” when you squeeze his chest. As you can see in the video on the site, furious is up for interpretation. It is a sloth though, maybe that’s sloth furious.  While it is cute and we do applaud the effort, anyone with children will agree that this is a step down in destruction for a 3 year old. You’re going to have to spice it up a bit, or give it a timer and make it free standing, make it roar or something to make it more appealing.  What recommendations do you guys have to improve this toy?

Unique Li-Ion battery tester

battery

[moris_zen] found himself with a hand full of Li-Ion batteries and no good way to see what their capacities were. He built a this unique tester really quick to get the job done. He’s using off the shelf components and a cheap pocket watch which he bought in Taiwan for $1. You hook the circuit up to your battery, click the button and the watch starts working. When it stops, you multiply that number by .38 to get your amp/hour results. Sure, he could have just used a counter, but this is an interesting approach. All he needs to do now is make a nice container to hide all of the circuitry. How could he change the circuit to make the end multiplication unnecessary?

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