ESP32 BLE Gadget: Build a Two-Way Phone Device

Set Up and Flash Your First Sketch

Meet the ESP32 Dev Board
Install PlatformIO and Flash a Blink Sketch (sign-in required)
Read Serial Output and Debug the Board
Checkpoint: ESP32 and Toolchain Basics

Build the Two-Way BLE Gadget

BLE Basics and Designing Your Gadget's GATT Service
Stream Sensor Data to the Phone with BLE Notifications
Receive Control Commands from the Phone
Checkpoint: BLE Two-Way Communication

Test, Harden, and Demo the Gadget

Test Your Gadget with a Phone App
Handle Disconnects and Common BLE Pitfalls
Capstone: Finish and Demo Your BLE Gadget (paid)
Checkpoint: Gadget Reliability and Shipping (paid)

Course cheatsheet (paid)

Checkpoint: ESP32 and Toolchain Basics