Hi, I'm using a CD74HCT4051E Analog Multiplexers/Demultiplexer. I've read many posts on how to use it with the Arduino. My initially I wanted to do a little test to ensure that my wiring was correct. So I wanted to connect a little piezo buzzer with a battery to from the Z or common pin (pin 4) of …

Using 4051 analog multiplexer/demultiplexer

system September 19, 2010, 10:31am 9

Please make sure that the multiplexer pins see no higher voltage than +5V and no lower than 0V !!!!

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