Just curious why you use 3 pins instead of just 2 pins for the two Enable signals in that circuit?Originally Posted by Darrel Taylor
Oops! Never mind. It allows you to use a single driver and a single pin for the E signal. Duh!
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Just curious why you use 3 pins instead of just 2 pins for the two Enable signals in that circuit?
Oops! Never mind. It allows you to use a single driver and a single pin for the E signal. Duh!
Last edited by Mike, K8LH; - 8th October 2010 at 11:14.
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i thought today at work of using two 2 input AND gates on the enable lines and use a second enable line... but, disable works... lol
Thanks
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You can use an 8 channels analog mux (74HCT4051), where you connect the pic enable pin to the input and the 8 outputs to 8 different LCDs (with a pulldown resistor). with three extra I/O pic pins you will select the proper LCD address using the selector line S0;S1;S2.
Cheers
Al.
Last edited by aratti; - 9th October 2010 at 16:30.
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