Feetech HD-1910-C001 4.8V 9kg.cm 360° Magnetic Encoder Dual-Axis TTL Servo

The Feetech HD-1910-C001 is a compact dual-axis TTL serial bus servo with a coreless motor, metal gearbox and 12-bit magnetic encoder, sized for small walking robots such as Microduck-style bipeds. At 21 g it gives 9 kg.cm of stall torque at 4.8 V with 4096-step position resolution.

Key features

• 0.088° resolution (4096 steps per turn), neutral at 2048, no mechanical end stop

• Half-duplex TTL bus with IDs 0–253 at 38,400 bps to 1 Mbps and PID position control

• Reports position, speed, load, input voltage and current

• Accepts 4–8.4 V, so it can run from a 2S LiPo; the torque figures are quoted at 4.8 V

• 1:320 metal gearbox with backlash of 0.5° or less, on ball bearings

Specifications

• Input voltage: 4–8.4 V

• Stall torque: 9 kg.cm at 4.8 V

• Rated load: 2.2 kg.cm at 4.8 V (500 mA)

• Stall current: 1.2 A at 4.8 V

• No-load speed: 0.137 s/60° (73 RPM) at 4.8 V

• Torque constant: 7.5 kg.cm/A

• Gear ratio: 1:320

• Motor: coreless

• Case: PA66 with 43% glass fibre

• Horn spline: 25T, 4.95 mm

• Dimensions: 34 × 20 × 23 mm

• Lead length: 15 cm

• Weight: 21 g

• Operating temperature: -20 to 60 °C

Like other bus servos it needs a TTL bus servo controller or adapter board rather than PWM from an RC receiver.