AVRCalc is a free calculator to assist in programming AVR microcontrollers. It provides the following functions.

• Baud Rate Calculator
  Actual baud, error rate, and character and bit timing.
• Timer Calculator
  Allows settting of prescaler, desired timing (in millseconds, microseconds, or Hertz), whether computing base rate or toggled [double frequency], showing compare values, actual rate, and error percentage, and timer overflow periods.
• TWI Calculator
  Computes TWI (I2C) frequencies based on register values as well as computing register values based on desired frequency.
• Watchdog Calculator
  Computes times for number of 128kHz watchdog cycles.
• FMUL Calculator
  Computes AVR fractional multiplications.
• 32-bit Number Calculator
  Converts between decimal (integer and floating point), hexadecimal integers, and IEEE-754 floating point. Can switch between little and big endian formatting.
• ASCII Calculator
  Computes between character strings, ASCII hex, and binary values.

Please forward any bug reports or feature requests to kevin@rosenberg.net.