The main controller in my robot - a Teensy 3.5 started acting up today, and now refuses to program at all, even with nothing connected. Doing my engineering 'smell and touch' test, I noticed the device marked 'AN W09', which from the schematic appears to be the dual diode package marked as 'D1' is a lot warmer than the same part on a 'known-good' T3.5. After 50+ years as a design engineer, I have a pretty well calibrated finger for temp measurements - I have noticed that when a device gets above about 60dec C I can no longer keep my finger on it. This device isn't quite that hot, but it's close. I also measured the temp at 49deg C with my Greenlee DM-4 with the supplied HUADA thermocouple.
Any thoughts? Is this T3.5 doomed to the trash can?
TIA,
Frank
Any thoughts? Is this T3.5 doomed to the trash can?
TIA,
Frank