Arduino Core vs ESP-IDF: When to Switch
Pros/cons and interop tips.
📚 Category: Esp32 Advanced
BLE GATT: Read/Write a Characteristic
Create a GATT service with a RW characteristic.
BLE Notifications to a Mobile App
Notify temperature updates from ESP32 to phone.
Continuous Integration: GitHub Actions Build
CI to compile firmware on push.
Designing a Mini Mesh with ESP‑NOW
Relay sensor packets via intermediate nodes.
ESP-NOW Basics
Peer-to-peer fast packet exchange without router.
FreeRTOS Basics: Task & Queue
Split work into tasks and communicate via queues.
Memory & Partitions (partitions.csv)
Understand flash layout and OTA slots.
MQTT over TLS (CA/Client cert)
Secure MQTT connection with TLS.
Power Saving: Deep Sleep & Wake Sources
Timer, ext0, ext1 wakeup with examples.