In this project, we'll combine a gyroscope and NeoPixels to build a device that lights LEDs corresponding to the angle of inclination.
Project tutorial by danionescu
In this tutorial, we're going to get your plain old RC to be controlled by Android and give it some extra features!
Project showcase by danionescu
In this tutorial we'll try to analyze how alarm systems signals might be sniffed and cloned using a cheap Arduino and some RF modules.
This is a beginner project in which we'll be lighting fireworks using our bluetooth enabled phone. Simplicity and cheapness are the taglines
The ExoMIND Glove is a stroke rehabilitation device used to generate biofeedback for physical therapists and patients.
Project showcase by Purdue MIND
I'm glad you like it.
LiPo batteries are used for their high power output, besides the maH raings, they have a "C rating". This rating is a measure of how fast a battery can be drained without sustaining damage. For example a 1000 maH battery with a rating of 20C (that is a typical rating) will be capable of providing an 20 A (1000 ma = 1 A multiplied by the 20).
So even a tiny 300 maH battery with a rating of 20C will be able to supply 6A of power. Of course at that rate it will discharge 20 times faster that normal (normal means an hour), so it will last 3 minutes, but at a typical 2.5 seconds ignition times it will be able to lite up over 60 fireworks.
More information here http://rogershobbycenter.com/lipoguide/
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