March 2017
Beginner to intermediate
422 pages
8h 4m
English
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Converting a 5V signal into a 3.3V signal and slew rates
Note
Microcontrollers such as Arduinos have become extremely popular over the years and are great to have if getting involved in the Internet of Things. It would be completely natural to have an Arduino collecting measurements and sending that data to a Raspberry Pi for processing. A big issue between the two, however, is what they understand the HIGH signal to be. For a Raspberry Pi, the HIGH signal is 3.3V. For an Arduino, HIGH is 5V. Before your data is sent from a 5V high system to a 3.3V HIGH system, you need to convert it. That's what we will cover in this recipe. Technically the Raspberry PI will interpret any voltage under 0.8V as LOW and any voltage above 1.3V as HIGH. In between, ...
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