Lucas Saavedra Vaz

The Arduino core v4.0 overhauls its Bluetooth libraries with modernized, safer codebases: the BLE library gains a unified API across NimBLE and Bluedroid with Bluetooth 5 enabled by default, while BluetoothSerial adds multi-peer support. Here is what changed and how to migrate from v3.3.12 to v4.0.0-RC1.

Learn how to create, structure, and publish Arduino libraries for ESP32. This step-by-step guide covers everything from understanding a library structure to submitting your library to the Arduino Library Manager.

This article presents information on how to use ESP-NOW with the Arduino core for Espressif devices.