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Practical calculations for embedded design decisions.
Practical calculators for embedded systems engineers. Every result shows its assumptions, and every calculation runs privately in your browser.
Explore all toolsStart with a calculator
Serial
UART Transmission Time
Turn baud rate and frame settings into transfer time and effective payload throughput.
Open calculator →Automotive & industrial
CAN Bus Load
Compare Classical CAN utilization with and without a conservative stuffing allowance.
Open calculator →Microcontrollers
STM32 Timer & PWM
Calculate timer frequency, duty cycle, and practical PSC/ARR values for a target PWM.
Open calculator →Know the formula
Results include equations and defined assumptions so you can review the arithmetic instead of trusting a black box.
Designed for the bench
Responsive forms, clear units, keyboard-friendly controls, and readable results make quick checks straightforward.
Learn as you calculate
Focused guides explain why framing overhead, CAN stuffing, and timer register semantics change real designs.