TLDR: trying to figure out if this gps needs a logic shifter for the RX/TX voltage.
I picked this little gps module up at spark fun.
Data sheet here -> https://cdn.sparkfun.com/datasheets/GPS/GP-735T-150203.pdf
I’m trying to understand if its safe to use with 3.3v or if it should be running at 5v for the RX/TX
I understand that the logic level on the Photon is 3.3v and while some pins are 5v tolerant I would like to do my best to make every thing is running at 3.3v if possible.
So back to my gps module I see it has a 3 - 5v power supply vcc but it does not state what its logic level is for the RX/TX. Is that because UART runs at a standard voltage and I should assume what that is or is there some other way I should be looking at what the logic voltage is?