Fix: ADCs provide erroneous readings. #3
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This is due to the fact that the same pins can be used both as analog and digital inputs. The problem however is, that once pins are configured as digital input pins they no longer report correct values when used as analog inputs. By their nature (as defined via the schematic) those pins are primarily defined as analog inputs and are consequently used as such. A digital input functionality is emulated on top of the analog one, by putting the transfer point between LOW and HIGH at the halfway point of the full analog voltage range.
aentinger
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type: imperfection
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This is due to the fact that the same pins can be used both as analog and digital inputs. The problem however is, that once pins are configured as digital input pins they no longer report correct values when used as analog inputs.
By their nature (as defined via the schematic) those pins are primarily defined as analog inputs and are consequently used as such. A digital input functionality is emulated on top of the analog one, by putting the transfer point between LOW and HIGH at the halfway point of the full analog voltage range.