[aprssig] GPS and PIC16F628

Andrew Rich vk4tec at tech-software.net
Wed Apr 24 17:45:43 CDT 2013


Wondering if someone can help 

I am having troubles spotting the minimum voltage swing for a GPS voltage on a PIC16F628 PIC MCU USART


I want to use Scotts TTL GPS but I need to make sure it swings high enough to make 1 and 0

So I can do away with the MAX232 chip I am using now 

- Andrew - 
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