![]() ![]() The primary purpose of the analog input pins A0-A5 is to read analog input. We can use pinMode(A0-A5, INPUT) (optional but nice to have) and analogRead(A0-A5) to read the 10-bit analog input. These analog pins are labeled A0 to A5 (whereas digital pins are labeled 0 to 13). The upper range can beĬhanged using the AREF pin and analogReference() function.
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