The ESP8266 WiFi module is the latest, made interesting because it pretty much doesn’t exist outside China. Why is it cool? It’s a WiFi module with an SOC, making it somewhat similar to TI ...

The LAMEBOY is built around an ESP8266 module. Anyone who has used one knows ... First he grabbed a PCF8574 port expander, and second he’s offloaded the color control of the screen backlights ...

A while ago I received a couple of I/O port expander modules that use the I 2 C protocol. Using that Chinese module, you can use only the SDA and SCL pins of your Arduino, or any microcontroller ...