Electronics Weekly

Not all Arduino inputs are equal – hunt the Schmidt trigger

I had cause to have a closer look at some Arduino inputs – it is that fascinating weather station again. It transpires that some Arduino inputs are better at tolerating slowly-changing inputs than ...
EDN

Quad 2-input NAND Schmitt Trigger

The HEF4093B is a quad 2-input NAND gate with Schmitt trigger circuit in each input. The device features Schmitt trigger input discrimination, fully static operation, and standardized symmetrical ...
EDN

BJT Schmitt Trigger

Back to analog, let us start some Schmitt trigger experiments with jellybean bipolar junction transistors… This post explores the classic emitter-coupled Schmitt Trigger circuit. A Schmitt trigger is ...
Electronics Weekly

Not all Arduino inputs are equal – hunt the Schmidt trigger

I had cause to have a closer look at some Arduino inputs – it is that fascinating weather station again. It transpires that some Arduino inputs are better at tolerating slowly-changing inputs than ...