Researching this forum, most replies mention 0.3Vcc for LOW (logic 0) and 0.6Vcc for HIGH (logic 1). Here's the results of some actual measurements on an UNO Rev3: Description: As the input voltage increases from 0V, the input is read as 0 and switches to 1 at 2.60V. As the input voltage decre…

Threshold Voltage and Hysteresis for Digital Inputs

Delta_G February 2, 2017, 3:08am 6

Again, I am talking about table 30-1.

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