Hi everyone,
for the start, I've searched the forum (and other forums) but haven't found the answer.
The problem: Teensy 3.2 is running normally with USB power supply - from PC or power bank - when I'm connecting VIN and VUSB (as expected) (I have cut the pads for separating VIN and VUSB as explained in tutorial but can reconnect them with soldered pins). But it is not working when I try to power it from 5V regulator. I'm running Blink example (Arduino IDE 1.8.15) for testing.
With external power (VIN and VUSB disconnected):
- The orange led is on - little dimmed, not blinking.
- I can measure 5V between VIN and GND pins.
- I can measure 3.3V between 3.3 and GND pins.
- When switching power on without USB plugged - not working.
- In this "powered but not booted" situation, when I shorten 5V and GND for a moment Teensy somehow "resets" and starts to blink!
- When switching power on with USB plugged - not working.
- But when I then reload the program from Arduino IDE (It asks to press the button at first but works on the second attempt) - it starts to work again!
Does any one have a clue what is happening?
Thanks in advance!
Hellmut
for the start, I've searched the forum (and other forums) but haven't found the answer.
The problem: Teensy 3.2 is running normally with USB power supply - from PC or power bank - when I'm connecting VIN and VUSB (as expected) (I have cut the pads for separating VIN and VUSB as explained in tutorial but can reconnect them with soldered pins). But it is not working when I try to power it from 5V regulator. I'm running Blink example (Arduino IDE 1.8.15) for testing.
With external power (VIN and VUSB disconnected):
- The orange led is on - little dimmed, not blinking.
- I can measure 5V between VIN and GND pins.
- I can measure 3.3V between 3.3 and GND pins.
- When switching power on without USB plugged - not working.
- In this "powered but not booted" situation, when I shorten 5V and GND for a moment Teensy somehow "resets" and starts to blink!
- When switching power on with USB plugged - not working.
- But when I then reload the program from Arduino IDE (It asks to press the button at first but works on the second attempt) - it starts to work again!
Does any one have a clue what is happening?
Thanks in advance!
Hellmut