mecha_idiot
New member
As the title suggests, I'd like to power my Teensy using a battery, but i'm having issues. The battery in question is 9v and i've built a basic voltage divider to step that down to 5.1v for the Teensy. as soon as i attach Vin on the Teensy to the 5.1v node, voltage at the node drops to 1.6v and the 3.3v out also sits at 1.6v. This occurs when using a power supply as well. If i attach the power supply directly to Vin and set it to 5v, current is drawn and voltage at Vin and 3.3v out drops to 1.6v. The only way i can successfully power the Teensy is via USB, yielding 4.9v at vin and 3.3v at the 3.3v out. is there a trick to powering it through Vin, or is my Teensy just not functioning correctly? sorry if this has been asked before..i tried in vain to find anything related to it.