This board also features 128 MB of RAM, 8MB of Flash and the usual compliment of Arduino pins in a Leonardo-compatible layout. Also on the SoC is a PCIE bus, Ethernet, a USB 2.0 host, and an SD card.

And the ESP8266 did this all at a very low cost: do some digging on eBay and you can get an ESP8266 board for less than $2. So, it is no surprise that we are starting to see the ESP8266 showing up ...

Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

It enables makers, IoT enthusiasts and professionals to build easily connected projects based on a wide range of hardware including not only Arduino boards, but also ESP32 and ESP8266 boards.