Hitec's low profile D777MG servo has evolved directly from their popular metal gear HS-7775MG and HS-8775MG. With 32-bit high resolution, ultra-response technology and wide voltage operation, the D777MG is the perfect solution for hobbyists requiring a low profile servo with an efficient coreless metal brushed motor.
The answer to this question is partially dependent on what you are using to control the servo.
Click for a quick video explanation.
With an Average Radio System:
90°
Your average transmitter and receiver will output a relatively narrow PWM signal range.
Radio System + Travel Tuner:
144°
Adding a Servo Travel Tuner to your radio system setup will allow you to achieve wide PWM signal ranges.
Wide Signal Controllers:
144°
Controllers such as the Servo Commander, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.
Whether you purchase the reprogrammed option or get a servo programmer and do it yourself, a reprogrammed version of this servo will be able to achieve greater travel than it can in stock form.
With an Average Radio System:
118°
Your average transmitter and receiver will output a relativly narrow PWM signal range.
Radio System + Travel Tuner:
190°
Adding a Servo Travel Tuner to your radio system setup will allow you to achieve wide PWM signal ranges.
Wide Signal Controllers:
190°
Controllers such as the Servo Commander, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.
Output Shaft Style | H25T Spline |
---|---|
Voltage Range | 4.8 V - 6.0 V |
No-Load Speed (4.8V) | 0.09 sec/60° |
No-Load Speed (6.0V) | 0.07 sec/60° |
Stall Torque (4.8V) | 72 oz-in. (5.18 kg.cm) |
Stall Torque (6.0V) | 90 oz-in. (6.48 kg.cm) |
Max PWM Signal Range | 760-2200 μsec |
Travel per µs (Stock) | 0.100°/μsec |
Pulse Amplitude | 3-5 V |
Operating Temperature | -20°C to +60°C |
Continuous Rotation Modifiable | Yes |
Direction w/ Increasing PWM Signal | Clockwise |
Deadband Width | 1 µs |
Motor Type | Coreless Metal Brush |
Feedback Style | 5KΩ Potentiometer |
Output Shaft Support | Dual Ball Bearing |
Gear Material | MP 1st Gear & 3 Metal Gears |
Wire Length | 8" (203.2 mm) |
Weight | 1.80 oz (45.0 g) |
Max Rotation (Stock) | 144° |
Max Rotation (Reprogrammed) | 190° |
Travel per µs (Reprogrammed) | 0.132°/µsec |