Arduino

General

The Optiboot or other bootloader runs after a reset and looks for a new program to download via RS232. If none is present, the existing one is run. See here for description of the use of DTR.

Libraries

• Standard Libraries
• LiquidCrystal_PCF8574 derived from Liquid Crystal

Development Environment

• Visual Studio Code, install Platform.io IDE extension
  • See [https://docs.platformio.org/en/latest/integration/ide/vscode.html#quick-start Quck Start)
• Extension icon -> New Project
  • include - header files
  • lib - libraries
  • src - C++ source files
  • platformio.ini
  • See small icons at bottom for Home, Build, Upload, Serial Monitor

• SHIFT-ALT-F to format document

Platformio.ini

• monitor_speed = 115200