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1  Using Arduino / General Electronics / Heat Coil Help on: May 04, 2013, 03:36:47 pm
Hey guys I'm trying to make a device that heats up fairly high to heat up coals. The coals are fairly small maybe the size of a half dollar. I wanted to make something simple and wanted to know if i could take a cigarette lighter coil and connect it straight to a battery or would i have to make a circuit and a separate heating coil.The power supply could be anything but preferably 5-12 volts.
2  Using Arduino / Networking, Protocols, and Devices / Ethernet Shield Mac Address on: December 15, 2011, 10:08:11 pm
I recently bought an Ethernet shield and there is no sticker on it that says its mac address. Is there anyway to figure out the mac address?
3  Using Arduino / Sensors / Vex ultrasonic on: August 14, 2011, 05:26:18 pm
i have a vex ultrasonic sensor and i was wonder how i can interface it with the arduino mega. im still learning programming so i have no idea what im doing. the vex ultrasonic link is below and anything can help. thanks


http://www.vexrobotics.com/276-2155.html
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