Results for “Serial.available”
Small, practical examples. Search by task or narrow things down below.
Read one character from serial input
Wait for an incoming byte without blocking the main loop.
Serial.available✓ Tested
Inspect a byte without consuming it
Arduino / C: peek leaves the next byte available for a later read.
Arduino / C✓ Tested
Check EEPROM capacity before a write
Arduino / C: length reports the available address count for this board.
Arduino / C✓ Tested
Check available disk space
Show total, used, and available filesystem space for the current directory in human-readable units.
disk✓ Tested
Collect a serial line in a fixed buffer
Read a short command without dynamic String allocation.
serial line✓ Tested
Combine several Serial.print calls
Arduino / C: Combine several Serial.print calls on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Deserialize a JSON object into a dictionary
C#: Specify the value type expected from a known JSON shape.
C#✓ Tested
Disable an unavailable action
Disable an unavailable action with a small React component and explicit browser behavior.
React✓ Tested
Dispatch a one-character serial command
Arduino / C: A switch provides explicit handling for accepted and unknown commands.
Arduino / C✓ Tested
Handle incomplete serial input
Arduino / C: The returned byte count distinguishes a complete payload from a timed-out partial one.
Arduino / C✓ Tested
Keep a label available without occupying visible layout space
CSS: A clipped one-pixel label remains the input’s accessible name.
CSS✓ Tested
Keep a serial message in flash memory
Arduino / C: The F macro keeps a literal out of scarce SRAM.
Arduino / C✓ Tested