At the other end of the scale, these 2metre by 2metre 16-segment character displays were hand-built from WS2811 addressable LED elements using ESP8266 as wireless LED drivers, controlled by a ...

His design is based on a combination of the ubiquitous ESP8266 WiFi chip and a NeoPixel ring from AdaFruit, so there are already great examples of how to code and control the hardware.

Arduino has launched its next generation of UNO boards, introducing a 32-bit Renesas microcontroller and Espressif ESP32-S3 module, one-click cloud connectivity and plenty of I/O plus a 12×8 red LED ...