<transmission name="shoulder_active_transmission">\r
<type>transmission_interface/SimpleTransmission</type>\r
<joint name="shoulder_active_joint">\r
+ <hardwareInterface>VoltageJointInterface</hardwareInterface>\r
<hardwareInterface>EffortJointInterface</hardwareInterface>\r
</joint>\r
<actuator name="shoulder_motor">\r
<transmission name="elbow_active_transmission">\r
<type>transmission_interface/SimpleTransmission</type>\r
<joint name="elbow_active_joint">\r
+ <hardwareInterface>VoltageJointInterface</hardwareInterface>\r
<hardwareInterface>EffortJointInterface</hardwareInterface>\r
</joint>\r
<actuator name="elbow_motor">\r