Do you hate spaghetti wiring when you are working on a prototype using the classic protoboards? Jordi Binefa & electronics.cat have been working on the creation of a reverse protoboard I/O matrix board.
This I/O matrix board allows to connect almost any set of sensors / motors / screens / servos to a Raspberry Pi or Arduino without using jumper wires at all.
Jordi Binefa has developed also a Raspberry Hat and an Arduino Nano shield to connect the devices with the I/O matrix board.
I think that is a cool work indeed!!
You can see here the I/O matrix schematics working in one real example from Jordi Binefa’s blog: