<https://www.circuitworx.co.uk/communication-technologies/#item>
<http://schema.org/description>
"CircuitWorx are skilled at implementing comms protocols in embedded system designs, including RS-485, USB, Ethernet TCP/IP, Wifi, Bluetooth & custom protocols."
<https://www.circuitworx.co.uk/communication-technologies/spi-i2c-i2s/>