I'm developing a firmware for the ESP32-S3 using ESP-IDF and have encountered a precise timing issue related to waking from Light Sleep and UART communication.
Hardware & Software Environment
Chip: ESP32-S3
ESP-IDF Version: v5.4.2
Problem Description
The system enters Light Sleep mode via ...
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- Tue Dec 16, 2025 10:09 am
- Forum: Hardware
- Topic: ESP32-S3: UART Interrupt Missed for Data Arriving ~90µs After Waking from Light Sleep via GPIO
- Replies: 0
- Views: 1466