The Arduino manages everything else on the system as well including all of the temperature sensors and fan motor control.

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[4] Theoretical Comparison of Different Envelope Elimination and Restoration Transmitter PWM Modulator Configurations to Expand the Possible Antenna Mismatch. Sensors (2023).

ESP32-S3 module on custom board. Only one GPIO (GPIO10) is used for PWM output via RMT. When sweeping PWM frequency and Ton dynamically using RMT on ESP32-S3, the output is not smooth. There's a ...