Results for “Serial.read”
Small, practical examples. Search by task or narrow things down below.
Divide using a fractional number
C++: Use a floating-point operand to preserve the fractional part of a division.
C++✓ Tested
Drive the built-in LED low after turning it on
Arduino / C: digitalWrite changes the actual output level of a configured pin.
Arduino / C✓ Tested
Encode a value as little-endian bytes
Arduino / C: Store the least significant byte first when the protocol requires it.
Arduino / C✓ Tested
Enumerate the items of a JSON array
C#: Dispose JsonDocument after reading its elements.
C#✓ Tested
Explain a sketch with comments
Arduino / C: Use single-line and block comments to document what a sketch does.
Arduino / C✓ Tested
Extract a JSON field
Read a scalar value from JSON text.
json_extract✓ Tested
Extract a section of an Arduino String
Arduino / C: substring includes the start index and excludes the end index.
Arduino / C✓ Tested
Extract a substring with an explicit count
C++: The second substr argument is a length rather than an ending index.
C++✓ Tested
Extract part of a date
Read a calendar component with EXTRACT.
EXTRACT✓ Tested
Extract the low and high byte of a value
Arduino / C: lowByte and highByte expose the two bytes of a 16-bit value.
Arduino / C✓ Tested
Find a division remainder
Arduino / C: Find a division remainder on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Find a median element without fully sorting
C++: nth_element partitions around the element that would occupy the chosen sorted position.
C++✓ Tested