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Forum : Digole Serial Display : Color LCD Modules :

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gordoncolquhoun
Total Posts:
3 
Since:
2017-Jul-29 
From:
United Kingdom

PENIRQ - Does it need an external pull up resistor ?
Posted at:2018-04-21 11:48:40     

Hi

Checked the documentation and forum etc, understand that PENIRQ goes LOW when the touchscreen is pressed, but do I need to ensure the penirq pin is pulled HIGH by an external  pull resistor (to prevent floating) or is this handled internally to the  display module ?

Thanks

Gordon
Service
Total Posts:
346 
Since:
2013-Dec-22 
From:
Canada

RE:PENIRQ - Does it need an external pull up resistor ?
Posted at:2018-05-08 12:16:34     

 No pull up resistor needed, the output is TTL
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