https://tom-acco.github.io/aprs-smart-beacon-calculator/
I wanted a way to view results of the smart beacon calculations implemented in nakhonthai/ESP32APRS_T-TWR against the calculations implemented in t52ta6ek/APRS-SmartBeaconing-Worksheet.
txInterval = (15 * highSpeed) / speed
txInterval = (fastInterval * highSpeed) / speed