arduino - How to differentiate analog and digital pins when using pinMode? - Stack Overflow
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Pin diagram of ARDUINO. The board has 14 Digital pins and 6 Analog... | Download Scientific Diagram
Following Getting Started guide for Raspberry Pi (how do I use Analog pins)? - Raspberry Pi - Particle
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Mastering Arduino
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Arduino Analog Pins as Digital Pins SECRET..! ! | Multiple Sensors with Arduino | Arduino More Pins - YouTube
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arduino nano - OneButton with pins A6 and A7 - Arduino Stack Exchange
