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Re: Dual Serial Port
It depends from levels ttl or RS232 !
1. U can install the controller with two ports like Cygnal ( www.cygnal.com)
2. Implement it on any pin by software ( usaly u do need to transmit back to GPS module ? u need onle to read GPS data)
3. Install some kind of switches like...
Try to use Cygnal microcontrolers -
https://www.silabs.com/tgwWebApp/appmanager/tgw/tgwHome
or old site www.Cygnal.com
it's a litle bit complicated but most powerfull in MSC51 series!
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