Ist es dieses Shield?
In der Beschreibung Sensor Shield V5.0 - ProtoSupplies steht:
2-Pos Screw Terminal

- GND = Ground for separate power supply!
- VCC = Positive voltage from separate power supply. Typically 5-6V for servos, but can be other voltage as required by the system.
Note: With the SEL jumper installed, there must not be external power applied to the 2-pos screw terminal or damage may result since it will short the external and on-board power systems together.
Hast Du den Jumper SEL (auf dem Foto gelb) gesetzt oder gezogen?
Grüße Uwe
