How To Make A Simple Calculator With Arduino MEGA

From Instructables user: techrm. Nowadays, doing calculations isn’t a problem at all. Powerful calculators can be bought for few Euro or easily installed on phones and computers. However, we decided to turn our Arduino into a calculator because we think it could be a really interesting experiment. It’s actually a very simple calculator, in fact it can just do the four basic calculations accepting only integer positive numbers. Despite this fact, the sketch is quite complex – and you’ll figure it out on next steps -, but the circuit is pretty easy instead and requires few and common components. Full...

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DIY Solar Battery Charger

From Instructables user: deba168.Imagine you are a gadget lover or hobbyist /tinkerer or RC enthusiast and you are going for a camping or outing .Your smart phone/MP3 player battery run out,you have taken a RC Quad Copter,but not able to fly for a long time. So you definitely need a good charger to charge the battery. Am I right ? But where can you get a power source at that location ? Do not worry,this instructable is solutions for all of your problems.Full instructable

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Make A Motion Detector That Sends Emails

From Instructables user: LightBug. In this instructable I’m going to show you how to take that simple circuit and make it send an email every time any motion is detected. If you are getting started with the particle core you can check out my previous istructable as a guide on how to get started before actually trying out this instrucatble. I will also try to keep the instructable as simple as possible so that no one gets left behind. Full instructable

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