Results for “Serial.available”
Small, practical examples. Search by task or narrow things down below.
Make an unavailable select option unselectable
HTML: A disabled option remains visible but cannot be selected through normal keyboard navigation.
HTML✓ Tested
Print a message to the Serial Monitor
Send a line once when the sketch starts.
Serial✓ 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 decimal number from serial input
Arduino / C: parseFloat parses a signed decimal value from the input stream.
Arduino / C✓ Tested
Read a fixed-size serial payload
Arduino / C: readBytes returns the number of bytes actually received.
Arduino / C✓ Tested
Read an integer from serial input
Arduino / C: parseInt skips leading nonnumeric characters and reads the next integer.
Arduino / C✓ Tested
Read serial text up to a delimiter
Arduino / C: readBytesUntil excludes the delimiter and does not add a null terminator.
Arduino / C✓ Tested
Repeat a serial message three times
Arduino / C: Repeat a serial message three times on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Require a locally available image
Docker / Compose: The never pull policy fails for missing images instead of attempting a download.
Docker / Compose✓ Tested
Run a first sketch and read serial output
Arduino / C: Run a first sketch and read serial output on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Serialize a 16-bit integer in big-endian order
C: Explicit shifts make a byte format independent of the CPU’s native byte order.
C✓ Tested
Serialize a hashtable as JSON
Produce compact JSON for a small data object.
JSON✓ Tested