Error opening serial port - Permission denied

Error opening serial port - Permission denied

  12月 10, 2018    山姆

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The temp solution is

In terminal to execute below command

sudo chmod 666 ttyACM0

after power on-off cycle, this problem still exists
PS: the 666 means r+w

The final solution is done by adding the currently logged user into dialout group with the following command:

sudo usermod -a -G dial $USER

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[Arduino 學習筆記 #6] Arduino Inside - Core Start-up & Initialization

[Arduino 學習筆記 #6] Arduino Inside - Core Start-up & Initialization

  12月 08, 2018    山姆

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內容講解了 1. Arduino boot sequence

2. Arduino Core startup & Initial

3. Arduino Time function implementation - Timer 0 overflow interrupt
4. Understand what resource be used and what peripherals be configured already

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