ESP32 AND CP2102 Serial data reading issue
Yes, but only if the CP2102 is operating at 3.3V rather than 5V. You said "USB-to-TTL" which implies, to me, 5V logic levels. On the other hand, your block diagram shows the CP2102 running at 3.3V....make sure that it really is. And don't forget to make the common ground connection.