Results for “open”
Small, practical examples. Search by task or narrow things down below.
Print a message to the Serial Monitor
Send a line once when the sketch starts.
Serial✓ Tested
Print a single character
Arduino / C: Print a single character on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Print integers in different bases
Inspect a byte in decimal, hexadecimal, and binary.
Serial✓ Tested
Print once from setup
Arduino / C: Print once from setup on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Provide a concise page description
HTML: A description meta element summarizes a document for clients that use that metadata.
HTML✓ Tested
Provide a list of selectable options
HTML: Learn how to provide a list of selectable options in a complete browser example.
HTML✓ Tested
Provide a skip link
Let keyboard users jump directly to focusable main content.
HTML✓ Tested
Read 16-bit values from a flash table
Arduino / C: pgm_read_word retrieves a complete word from program memory.
Arduino / C✓ Tested
Read a button in the Serial Monitor
Arduino / C: Use a pull-up input and if/else to report three button readings.
Arduino / C✓ Tested
Read a button with the internal pull-up
Treat a grounded input as a pressed button.
INPUT_PULLUP✓ Tested
Read a byte lookup table from flash
Arduino / C: PROGMEM tables require the AVR program-memory access functions.
Arduino / C✓ Tested
Read a data attribute
Read an element data attribute with jQuery data.
jQuery✓ Tested