Flag variables are not evil (for Microcontrollers)
Getting programming questions answered on the internet can be problematic. Programmers love to have opinions, stick to those ideas, and express them to you even when their opinion …
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Pushbutton and Flashing LED tutorial with millis()
How to blink (or flash) a LED without delay() and detect button pushes One of the limitations of the delay() function is that nothing else can really be done. This presents a …
Read MoreCase Study in Optimization: Faster SPI on AVRs
The Arduino Library provides functions like shiftOut() and digitalWrite(). These functions are simple and effective, but they are slow. Of course, they’re doing a lot more than …
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