An Arduino Pro mini handles the selection between outputs by driving a selection of relays with appropriate timing.

The creator of the Arduino RF Pro Mini open source development board Etienne, explains a little more about the inspiration behind the project. “ I’ve loved Arduino for years.

Prices for boards themselves vary, ranging from around £13 for the Arduino Pro Mini right up to £75 for an Arduino Bluetooth board which uses wireless comms to cut the USB umbilical cord.

Unlock New Possibilities with Arduino Pro Connectivity Solutions The combination of the Arduino Portenta Mid Carrier and the Arduino Pro 4G Module opens up a world of possibilities for your projects.

It runs on an Arduino Pro Mini knockoff and an RTC module for the sake of simplicity. [Lee] chained NeoPixel strips together in five rows of eight, which allowed him to use a 3×5 font to display ...