Just bought a HS-805BB servo

[GOT]

How do you think a prop2 would handle a HS-805BB?  The specs are not clear but it says it pulls 80mA unloaded and I think it wants 1200mA to push things around.  Servo Power board? (you know I am scared of those).

[JonnyMac]

What's an HS-805BB?  Can you provide a link to a spec sheet?

[GOT]

Sorry, I should have been more specific.  It is a Hitec 1/4 scale servo.  Specs are:

Control System: +Pulse Width Control 1500usec Neutral
Required Pulse: 3-5 Volt Peak to Peak Square Wave
Operating Voltage: 4.8-6.0 Volts
Operating Temperature Range: -20 to +60 Degree C
Operating Speed (4.8V): 0.19sec/60° at no load
Operating Speed (6.0V): 0.14sec/60° at no load
Stall Torque (4.8V): 274.96 oz/in. (19.8kg.cm)
Stall Torque (6.0V): 343.01 oz/in. (24.7kg.cm)
Operating Angle: 45 Deg. one side pulse traveling 400usec
360 Modifiable: Yes
Direction: Clockwise/Pulse Traveling 1500 to 1900usec
Current Drain (4.8V): 8mA/idle and 700mA no load operating
Current Drain (6.0V): 8.7mA/idle and 830mA no load operating
Dead Band Width: 8usec
Motor Type: 3 Pole Ferrite
Potentiometer Drive: Indirect Drive
Bearing Type: Dual Ball Bearing
Gear Type: All Heavy Duty Nylon Gears
Connector Wire Length: 11.81" (300mm)
Dimensions: 2.59" x 1.18"x 1.26" (66 x 30 x 57.6mm)
Weight: 5.36 oz. (152g)

[JonnyMac]

You're going to need an external supply -- controlling it is not a problem.  You'll need to connect the Prop-2 GND terminal to the ground of the external supply.

[GOT]

My question is the best way to hook up an external power supply.  The servo cam with a Y connector but I am nervous just plugging power in there.  You sell your servo power board which is an option.  Without that servo power board, how would I hook up the prop2, servo and external 5v, 2amp wall adapter without frying the prop2?

[JonnyMac]

Wire the external power supply right to the servo; connect to the Prop-1 (Px header) using an RWB extender cable with the red wire removed.