Results for “character”
Small, practical examples. Search by task or narrow things down below.
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
Compare a command case-sensitively
Arduino / C: strcmp returns zero when both null-terminated strings match.
Arduino / C✓ Tested
Compare a value literally inside a conditional
Bash Scripts: Quoting the right side of an equality test makes wildcard characters literal.
Bash Scripts✓ Tested
Compare elapsed time across timer rollover
Use unsigned subtraction when a millisecond counter wraps.
rollover✓ Tested
Control an LED from a button
Translate an active-low button input into an LED output.
button✓ Tested
Convert a string to lowercase
Normalize a text value using Bash expansion.
lowercase✓ Tested
Convert a supplied ADC count to volts
Arduino / C: Scale a ten-bit ADC count using an explicit reference voltage.
Arduino / C✓ Tested
Convert a variable to uppercase
Bash Scripts: Double caret transforms matching lowercase characters in Bash 4 or later.
Bash Scripts✓ Tested
Convert ASCII text to uppercase
Convert characters with toupper while avoiding signed-char undefined behavior.
C✓ Tested
Convert Celsius to Fahrenheit
Arduino / C: Use floating-point constants to avoid integer division.
Arduino / C✓ Tested
Convert received ASCII letters to uppercase
Arduino / C: ctype functions should receive an unsigned character value.
Arduino / C✓ Tested
Copy a file to a chosen destination
PowerShell: LiteralPath prevents wildcard characters in the source filename from being interpreted.
PowerShell✓ Tested