Arduino compass

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If your car’s dashboard does not feature compass, you might be interested in this DIY digital compass using Arduino and HMC5883L triple axis magnetometer. The direction you are heading is displayed on a tiny OLED. I’m astounded that some cars don’t have a digital compass always visible. You either have to launch the navigation app each time which may even disappear when you adjust the radio. In this project, you’ll create a digital compass that can be powered by by the cigarette lighter or another source (batteries make it handheld). You could buy one, but where’s the fun in that? You’ll

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Arduino Fireworks controller

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JonBush has posted great instructions on building an Arduino-powered firework controller. My module is Arduino powered for a few reasons. 1) I need to work on my programming skills. 2) I wanted it to be “smart” or “aware” of what connections were present. 3) I wanted to have control over timing adjustments that a more analog solution wouldn’t allow. 4) I wanted a more graphical user interface that would be fun for my kids. The complete solution was a two part module that allows you, children, babies, etc to safely enjoy launching fireworks from a minimum distance of 50 feet.

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TIC-TAC TV Remote Jammer

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DangerousTim’s TV remote jammer is disguised in a TicTac Box, which constantly sends steady IR pulses at about 40kHz to the TV receiver to disable any command sent from the TV remote. With this handy little circuit, you can watch your favorite show without any interruption from your family member.

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IOT enabled AC wall outlet

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Gopinath.Marappan has posted great instructions about how he built an IoT enabled AC wall outlet using Arduino and ESP8266 platforms, along with a bunch of sensors, relays, and LCD displays. It features light and fan On/Off control, fan speed regulator, mood lighting, and cloud datalogger. It also allows IR remote control, amartphone app control, twitter and SMS alerts, and many more features. This project was conceived when I felt the need to automatically reduce the speed of an AC ceiling fan in the bedroom as temperature drops through the night. In Bangalore, where I live, during winters, I like to

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