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I have a hello blink program I wrote in assembler (trying to learn it) and found that the code will stop executing the main loop if I omit a serial println statement int led = 13; void setup() { Serial.begin(9600); pinMode(led, OUTPUT); } void loop() { // Serial.println("Why do I...

I am working on a project using the microphone of an android headset accessory, connecting it to a sparkfu opamp, and the into the line in of a teensy audio board. I am able to receive audio output from the teensy to the headset earpiece, but am having trouble getting the microphone signal to...