JohnPunnett
Active member
OK been reading loads & a bit confused with power requirements. I am currently putting together a project with Teensy 3.2. I have some external boards that operate from Teensy using I2C (IMU) & stepper motor drive board based on DRV8825 which is logic (3-5.25V). I have a 12V power pack & am wondering if it is preferable to operate the Teensy from 5VDC or 3.3VDC external. Does the speed of the Teensy change if you use lower volts. Also which pins do I connect the external PSU to? I still want to have capability to have laptop plugged in so I can upload new code etc. as I develop program so as I understand I need to break a connection underneath.
Any help/ clarification would be appreciated - thank you, John
Any help/ clarification would be appreciated - thank you, John