Renn strapped an Arduino Mini to one of his surfboards and and connected it to a network of sensors. These were housed in a waterproof pad before and the whole unit was sent out to sea.

Nuvoton Technology has announced an Arduino-like development board for its own Arm Cortex-M4 based M467 “Ethernet – crypto microcontroller series”, it calls them. The board, ‘NuMaker-UNO-M4’ has the ...