isaacjacobson
Well-known member
PROJECT DESCRIPTION
So I have a project with a Teensy MicroMod. I want to incorporate MIDI IN and EXPRESSION via a single 3.5mm TRS jack. There is a 3PDT switch that changes the 3.5mm TRS jack circuit from MIDI and EXPRESSION inputs. While in "MIDI Mode," the TRS goes to the Teensy MM RX0 pin (via a standard midi standard circuit). While in "Expression Mode," the TRS input sends to A2 pin (via standard expression pedal/potentiometer circuit).
MY QUESTION
So what happens in the unlikely event that I accidentally send a midi signal while it is in "Expression Mode"? Aka... what happens if I send a the MIDI output of a midi device/controller DIRECTLY to the A2 pin?
I've heard that some older midi devices are 5v, and my understanding is that the Teensy MM doesn't withstand higher than 3.3 on the pins. Is my Teensy MM in trouble? Would it get overpowered? Or are 5v MIDI signals so obsolete that I don't have to worry about it?
I'd greatly appreciate hearing some thoughts on this!
So I have a project with a Teensy MicroMod. I want to incorporate MIDI IN and EXPRESSION via a single 3.5mm TRS jack. There is a 3PDT switch that changes the 3.5mm TRS jack circuit from MIDI and EXPRESSION inputs. While in "MIDI Mode," the TRS goes to the Teensy MM RX0 pin (via a standard midi standard circuit). While in "Expression Mode," the TRS input sends to A2 pin (via standard expression pedal/potentiometer circuit).
MY QUESTION
So what happens in the unlikely event that I accidentally send a midi signal while it is in "Expression Mode"? Aka... what happens if I send a the MIDI output of a midi device/controller DIRECTLY to the A2 pin?
I've heard that some older midi devices are 5v, and my understanding is that the Teensy MM doesn't withstand higher than 3.3 on the pins. Is my Teensy MM in trouble? Would it get overpowered? Or are 5v MIDI signals so obsolete that I don't have to worry about it?
I'd greatly appreciate hearing some thoughts on this!