I was in the process of writing some code for the Teensy 3.1. I had left the Teensy running since the night before running some code that showed elapsed time in seconds on a 16 X 2 LCD. The Teensy was running from an external supply with the recommended mods but hooked up to the PC via the USB lead, a set up i had used for a few days, nothing else was connected apart from the LCD.
I was ready to upload the code and looked at the LCD which now had a row of black squares on the first line, yet a few minutes before it was happily counting away. Pressing the reset had no effect so i disconnected the USB and noticed i didnt get the USB disconnect sound. I discovered the PSU light was a little dim and i measured the supply voltage which was now 3.66 volts instead of 5v, disconnecting the Teensy allowed the supply to rise to 5v. It was then that i noticed that the CPU was running very hot, too hot to leave your finger on. Disconnecting everything and leaving just the supply connected had no effect.
Im usually pretty careful will all precautions including static, but i cant understand whats killed this board, any idea's, and is it worth contacting the supplier?
John
I was ready to upload the code and looked at the LCD which now had a row of black squares on the first line, yet a few minutes before it was happily counting away. Pressing the reset had no effect so i disconnected the USB and noticed i didnt get the USB disconnect sound. I discovered the PSU light was a little dim and i measured the supply voltage which was now 3.66 volts instead of 5v, disconnecting the Teensy allowed the supply to rise to 5v. It was then that i noticed that the CPU was running very hot, too hot to leave your finger on. Disconnecting everything and leaving just the supply connected had no effect.
Im usually pretty careful will all precautions including static, but i cant understand whats killed this board, any idea's, and is it worth contacting the supplier?
John