Great to find these connectors. Opens up a whole new range of sensors for my Arduinos, Pis, Pi-Top and MicroBits. The Pi-Top has analogue inputs so I use the connectors to add Grove Sensors. I also use them to connect a wide range of standard sensors and devices to a MicroBit that uses a Boson interface board. The picture shows a demonstration Earthquake Disaster Control System built using Scratch that reads a sensors on an external board and controls a Robot. Various different sensors can be added to the board using the connectors.