Arduino: Difference between revisions

Revision as of 20:01, 16 August 2025

General

On reset or powerup, ehe Optiboot or other bootloader code is run. If an external reset was the cause, listening mode is entered, and the LED is flashed. Programming commands in STK500 protocol are listened for, of the serial line at 115200 speed. If none are received in a small timeout window (~ 1s), the normal code is executed.

The DTR line if used to trigger a reset in software IDE (see here).

Duemilanove

Documentation

Arduino Language Reference

Useful Libraries

Standard Libraries

FastLED for WS2812B programmable LED strips
- Code Examples
- Colour Reference
LiquidCrystal_PCF8574 derived from Liquid Crystal
OneButton
Pin Change Interrupt
TinyGPS

Other

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

@@ Line 3: / Line 3: @@
 On reset or powerup, ehe [https://github.com/Optiboot/optiboot Optiboot] or other bootloader code is run. If an external reset was the cause, listening mode is entered, and the LED is flashed. Programming commands in STK500 protocol are listened for, of the serial line at 115200 speed. If none are received in a small timeout window (~ 1s), the normal code is executed.
-The DTR line if used to trigger a reset in software IDE (see [https://rheingoldheavy.com/arduino-from-scratch-part-11-atmega328p-dtr-and-reset/ here].
+The DTR line if used to trigger a reset in software IDE (see [https://rheingoldheavy.com/arduino-from-scratch-part-11-atmega328p-dtr-and-reset/ here]).
 * [https://docs.arduino.cc/retired/boards/arduino-duemilanove/ Duemilanove]