Gravity IO uitbrijding shield

IO Expansion shield is one of the market favourites.
Fast robotics prototyping made affordable and simple thanks to this design.
Soldering and wiring often becomes a problem when a bridged connection happens and components break.
Increasing time a costs for projects. Often, without this solution and a soldering station, wire cripping tools or soldering station, robot prototyping or electronics DIY becomes a very long term project.
The DFRobot Expansion shield introduced to the market the famous color code for sensors and actuators input and output.
The 3 pin format for Signal, Voltage and Ground is extremely useful, specially if used altogether with our increasingly large range of modules, sensors and devices that just fit .
Alternatively, the board includes power input for salvaged power supplies or laboratory power supplies.
Very common Xbee socket for multipurpose wireless connectivity such as RF, wireless, bluetooth.
The new version includes a voltage hardware setting through a jumper to allow compatibility with a bigger range of components at 3.3v like Raspberry pi, Due and others.
It also includes a Servo external power, with a protective diode.
This way you can enable a large range of servos from your Arduino. Latest version features a convenient switch that lets you program your ATmega328 boards like UNO, while you have another Serial device connected like a Xbee. Switch it, program it and get it back up and running with another switch.
You don't need to disassemble your hardware or wiring.
A LED on top board and a reset button is in order to make it just a natural extension to Arduino boards.
The LED is connected to pin 13.