ESP32 LEDC PWM Calculator
Work out frequency, resolution and duty-cycle values for the ESP32 LEDC peripheral, then copy ready-to-paste Arduino code.
Open toolUtility tools for makers & developers
Small tools, built for the bench and the terminal.
PulseForge is a growing set of free browser tools for programming, Arduino, ESP32 and general electronics work — plus everyday developer calculators. No installs, no accounts, just the calculator or converter you need, right now.
Tools
ESP32 Timer Interrupt Calculator
Type an interval like "500 ms" and get the prescaler, alarm value, and a
working timerBegin() / timerAlarm() sketch.
ESP32 GPIO Reference & Pin Picker
Select your board variant, click a pin, and instantly see if it's safe for output, PWM/ADC/touch capable, its I2C default, and any boot restrictions.
Open toolESP32 Battery Life Estimator
Enter your active and deep sleep current, wake interval, and battery capacity to get an estimated runtime in hours/days, plus a chart of where the energy goes.
Open toolBaud Rate & UART Error Calculator
Enter your CPU clock and desired baud rate to see the actual achievable rate, the error percentage, and whether it's safely within the ~2% tolerance UARTs need.
Open toolArduino GPIO Reference & Pin Picker
Select your board variant, click a pin, and instantly see if it's safe for output, PWM/ADC capable, its I2C/SPI default, and any caution notes.
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