Abstract: For applications that require less than a keyboard or numeric keypad, this simple circuit monitors multiple pushbutton switches using a single multi-channel 1-Wire® addressable switch (DS2408), and a few external components. Maxim > Design support > App notes > 1-Wire Devices > APP 4849 Maxim > Design support > App notes > Interface Circuits > APP 4849 Keywords: 1-Wire switches, pushbutton switches, microcontrollers Feb 10, 2011 APPLICATION NOTE4849 Sense Multiple Pushbuttons Using Only Two Wires By:Bernhard Linke Abstract:For applications that require less than a keyboard or numeric keypad, this simple circuit monitors multiple pushbutton switches using a single multi-channel 1-wire addressable switch (DS2408), and a few external components. A similar version of this article appeared in the September 9, 2010 issue of EDN magazine. Keyboards and numeric keypads often provide the user ……