AVR®: Understanding USART TX Pin Activity Using the Data Visualizer

 In this video:

  • The datasheet to find the TX pin on Port D1.
  • The Data Visualizer in pin mode to monitor the activity on this line in order to see the pulse bursts every second.
  • Cursors to demonstrate that each transmission takes roughly 37 mS (spanning more than three timer counter triggered ADC sample readings and ADC conversion complete IRQs).

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