Yozh contains two ports for connecting servos, as shown in the photo below. These ports use standard pin order: GND, VCC, SIGNAL. To help you identify the pins, there are small letters S (Signal) and G (GND) next to corresponding pins. VCC is directly connected to the battery, so voltage ranges between 4.5-6.5V depending on battery charge.
Yozh can also be used with mechanical attachments (grabber, forklift,...) by DFRobot -- see photo below for Yozh with the grabber (beetle) attachment. US customers might find it easier to order DFrobot kits from DigiKey:
Note that some of these attachments might interfere with the distance sensors.
