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    Help debugging dead T3s

    Hi all, I have some Teensy 3s that are most likely dead because they aren't being detected when connected via USB and powered by an external 5V power supply. Are there any good ways to determine the cause of death? Also, I seem to be alarmingly good at zombifying Teensies, so has anyone else...
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    Serial data not being transferred?

    Using the code below, I'm not seeing any text appear in the serial monitor (also tried TeraTerm); however, the LED is blinking just fine: void setup() { Serial.begin(9600); pinMode(13, OUTPUT); } void loop() { Serial.println("led on"); digitalWrite(13, 1); delay(1000)...
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    Setting up a PWM signal

    I would like to generate a >1MHz clock signal for an external LED driver chip to use for its PWM cycle. I've been doing this on another microcontroller by setting up a PWM pin with a 50% duty cycle to pulse on and off very quickly, which required access to the low-level registers. I've read this...
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