Embedded Dreams

Feb
25

LED bargraph series - Is it hot or cold?

NunoDIY, Tutorial, edChipsNo Comments

How’s the temperature today? Cold, good or hot? Ambient temperature can be easily measured without any special temperature sensor. You just need… a common diode! Well, actually, a diode and a resistor. Diodes change their forward voltage drop at a rate of approximately -2.3 mV per degree Celsius (ºC), so we just need to measure that voltage.

You may want to start by reading Setting up a LED bargraph. Check also our other Free Articles.

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Feb
18

Article series on using a LED bargraph

NunoDIY, Tutorial, edChipsNo Comments

I’ll be writing a few articles on easy and fun things you can do with a linear LED bargraph such as our Linear bargraph LED scale module, and this 1st one is meant to show you how to make the basic adjustments. Keep on reading and stay tunned!

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