Turnabot Startabot micro servo
Turnabot Startabot Micro Servo
Small size, lots of speed and power. The Startabot servo delivers 0.04 s/60° @ 8.4 V with up to 3.8 kg·cm torque in a tiny 23×12×27.5 mm, 20 g package. Wide 4.8–8.4 V range and 333 Hz digital control make it a great fit not only for lightweight combat robots, but also for compact robot arms, pan-tilt heads, micro rovers, and animatronics.
Neutral is ~1520 µs; works with common PWM servo libraries on Arduino®/Raspberry Pi®, however, review against your own design parameters. Note: color of the servo arms may vary.
$28.00
3 in stock (can be backordered)
Overview
The Turnabot Startabot micro servo packs serious speed and usable torque into a tiny package. It clocks
0.04 s/60° @ 8.4 V with up to 3.8 kg·cm torque, runs across a wide
4.8–8.4 V range, and accepts standard 3-wire PWM control (pulse width ~1520 µs center). At just
23×12×27.5 mm and 20 g, it’s ideal for micro pan-tilt heads, compact grippers, small rovers, and animatronics.
Classroom-friendly safety: after being stalled for several seconds the Startabot enters a protective
“sleep” mode and wakes on the next valid control signal. It won’t stop all heat from aggressive stick inputs,
but it runs cooler under novice use—great for labs and workshops.
Compatibility note: control signal is standard hobby PWM (≈1000–2000 µs around ~1520 µs center). The spec lists a
~333 Hz update; many controllers default to ~50 Hz and still drive digital servos reliably, but
verify on your setup. If needed, use a library/driver that allows higher update rates (e.g., PCA9685 or
libraries with configurable servo refresh). Start with small motions at low load, confirm no binding, then expand endpoints.
Features — Turnabot Startabot Micro Servo
- Ultra-fast response: 0.04 s/60° @ 8.4 V (0.07 s/60° @ 4.8 V)
- Strong for its size: up to 3.8 kg·cm @ 8.4 V (3.0 kg·cm @ 4.8 V)
- Wide operating range: 4.8–8.4 V DC
- Digital control: ~333 Hz update rate with ~1520 µs neutral
- Compact & light: 23×12×27.5 mm, 20 g
- Standard 3-wire PWM (signal / V+ / GND); Arduino® / Raspberry Pi® friendly
- Great for micro pan-tilt heads, small grippers, rovers, and compact animatronics
Specifications — Turnabot Startabot Micro Servo
| Category | Details |
|---|---|
| Operating Voltage | 4.8–8.4 V DC |
| Speed | 0.04 s/60° @ 8.4 V 0.07 s/60° @ 4.8 V |
| Torque | 3.8 kg·cm @ 8.4 V 3.0 kg·cm @ 4.8 V |
| Dimensions (L × W × H) | 23 × 12 × 27.5 mm |
| Weight | 20 g |
| Control System | Digital PWM; neutral ~1520 µs; update ~333 Hz |
| Included | Nylon/plastic Servo arms and screws (color may vary) |
FAQs — Turnabot Startabot Micro Servo
Is it APPROPRIATE FOR COMBAT ROBOTICS?
Yes. It uses standard 3-wire PWM that plugs into a receiver or other.
Will it work with Arduino®/Raspberry Pi®?
Yes. It uses standard 3-wire PWM. Start with a pulse range of 1000–2000 µs around a ~1520 µs center using common servo libraries. Increase endpoints only after verifying there’s no binding.
How should I power it?
Use a dedicated regulated 5–6 V (or up to 8.4 V within spec) supply that can handle brief current peaks. For combat robotics, feed by plugging into a receiver being fed from a 5V BEC or UBEC. Don't plug the power wire directly into the battery. For Maker-type applications (Arduino/Raspberry Pi), avoid powering the servo from a microcontroller’s 5 V pin. Tie the servo ground to the controller ground.
How much travel does it have?
Travel depends on the controller’s endpoints and internal limits. Begin with 1000–2000 µs and adjust carefully. For continuous rotation you’ll need a dedicated continuous-rotation servo. Make sure to center the servo for combat robotics applications.
What’s included?
Servo arms are included as illustrated in the images.
Will it fit my mount?
This is a micro-class servo at 23×12×27.5 mm and 20 g. Verify your mount’s hole spacing and horn style before final assembly.
