Probably easier to also reset a general purpose timer and generate your interrupts that way. When not in deep sleep, both use the 40MHz crystal as a reference, so there's no difference in precision. You could even use the MCPWM timer, from what I remember it can reset based on an external signal en...

Hi everyone, I'm developing an ESP32-WROOM-32E based device that requires precise GPS and PPS synchronization. Here’s what I've implemented so far: 1. I use a GPS module to retrieve time data (date, time) from the RMC command. 2. On the next PPS rising edge, I synchronize the internal RTC with setti...