Bi-Directional Voltage Level Translator

While most of my microcontroller designs run on 3.3 volts there is still the ocasional 5 volt design. Or I do something with an Arduino. So the need may arise to interface between logic working at different voltage levels. There are several ways of doing this, depending on your needs. Things are relatively simple as long as you know in advance which side is transmitting and which side is receiving. It gets ...

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Sign Language Translator using Arduino

First of all, this project is not finished. We're still trying to improve and fix some problems. Right now, we're only able to translate letters from "A" to "E". The program still have problems while identificating those letters, the values for each of them match sometimes, so we're still trying to fix this. Many people around the world suffer from speech problems, and can't communicate with others in the s ...

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