I realized that with ESP32-S3, the RMT is different, in that channels 0-3 are TX only, and 4-7 are RX only. So that's probably why I wasn't getting any data from pins 0-3 :lol: I reconfigured the sketch to use RX pins, and the rmt_init() function causes the chip to restart. After much digging, I lea...

<edit> There doesn't seem to be an example sketch for simple RMT input for measuring PWM period, specifically for ESP32-S3 boards. Not only would that solve my issue, but would allow more developers to use RMT peripheral. Looking for help getting ESP32-S3's RMT to measure and report on the period of...