I have a Sparkfun serial LCD display that I bought to use with a Teensy 2.0 that ended up in getting built into a different project and now I have a Teensy 3.1 on the way and am wondering if I need a level shifter to drive it?
I realize that the Teensy 3.1 has 5V tolerant inputs, but not sure how to tell if the Sparkfun backpack will work with what I presume would be 3.3V signals coming out of the Teensy 3.1. The backpack appears to use a PIC16F88 according to the sparkfun schematic and the data sheet for that is here AFAICT but it is a bit overwhelming for a newbie like me.
I can just give it a go when the 3.1 shows up, but was wondering if I should have something like one of these bi-directional translators from Sparkfun in my box of things.
NB. My soldering skills are in the truly awful range right now, so breakouts are the way to go for me until I get better.
I realize that the Teensy 3.1 has 5V tolerant inputs, but not sure how to tell if the Sparkfun backpack will work with what I presume would be 3.3V signals coming out of the Teensy 3.1. The backpack appears to use a PIC16F88 according to the sparkfun schematic and the data sheet for that is here AFAICT but it is a bit overwhelming for a newbie like me.
I can just give it a go when the 3.1 shows up, but was wondering if I should have something like one of these bi-directional translators from Sparkfun in my box of things.
NB. My soldering skills are in the truly awful range right now, so breakouts are the way to go for me until I get better.