Adafruit has many nice platforms to start to create embedded devices.
This article would help to start to play with this platform.
One of them is called Huzzah32, member of the Feather family.
The Huzzah32 is based on a dual-core ESP32 chip, 4 MB of SPI Flash, and tuned antenna since it has both WiFi and Bluetooth Classic/LE support plus some GPIO ports, I2C and SPI capabilities.
