Hello all,
I've been working on a teensy audio project, and everything has been going swimmingly for the most part.
Code is good, Inputs and controls are good, but my problem is I can't figure out how to power my my teensy 3.2 with an external 9v power supply.
This is going in a guitar pedal enclosure, and will be running with a bunch of over 9v DC guitar pedals.
I would prefer to have the teensy be powered by either USB or 9v, So I have not cut the VUSB 5v pad on the back.
I'm hooking up a 9V power plug through a voltage divider, and which should just be any value of resistor, as long as both are the same, I'll get 4.5v in the middle.
I've tested my divider on a bread board, and I consistently output 4.5v.
My problem, is when I connect my 4.5 v to the vin pin, nothing works, and when I try to power on with USB after disconnecting the power, I can't upload code, and previous code is not running. 3.3v pins read as 0v, and I'm pretty sure I fried my teensy? I've done this 3 times now and I cannot figure out what I'm doing wrong.
Should I be using a different value resistor for my voltage divider? On my breadboard they all seem to yield the same result , but I've been using 5% 470 Ohm.
I've been working on this project since summer and I really just want to get it finished and working.
I'm using a 3.2, teensy audio shield, and teensy breakout board.
Thanks!
I've been working on a teensy audio project, and everything has been going swimmingly for the most part.
Code is good, Inputs and controls are good, but my problem is I can't figure out how to power my my teensy 3.2 with an external 9v power supply.
This is going in a guitar pedal enclosure, and will be running with a bunch of over 9v DC guitar pedals.
I would prefer to have the teensy be powered by either USB or 9v, So I have not cut the VUSB 5v pad on the back.
I'm hooking up a 9V power plug through a voltage divider, and which should just be any value of resistor, as long as both are the same, I'll get 4.5v in the middle.
I've tested my divider on a bread board, and I consistently output 4.5v.
My problem, is when I connect my 4.5 v to the vin pin, nothing works, and when I try to power on with USB after disconnecting the power, I can't upload code, and previous code is not running. 3.3v pins read as 0v, and I'm pretty sure I fried my teensy? I've done this 3 times now and I cannot figure out what I'm doing wrong.
Should I be using a different value resistor for my voltage divider? On my breadboard they all seem to yield the same result , but I've been using 5% 470 Ohm.
I've been working on this project since summer and I really just want to get it finished and working.
I'm using a 3.2, teensy audio shield, and teensy breakout board.
Thanks!