Pololu Mini Maestro 18-Channel USB Servo Controller (Partial Kit)
Enhances serial servo control for precision tasks
Features native USB and internal scripting
Configures for USB, TTL serial, and scripting
Supports pulse rates up to 333 Hz
Offers compact, customizable design with headers
The Pololu Mini Maestro 18-Channel USB Servo Controller (Partial Kit) is a sophisticated device designed to enhance the performance of serial servo controllers. It features a native USB interface and internal scripting control, making it ideal for high-precision applications such as robotics and animatronics. This compact controller offers a resolution of 0.25μs with built-in speed and acceleration control, and supports pulse rates up to 333 Hz, ensuring smooth and seamless movements.
This versatile controller can be configured for various functions, including servo outputs for radio control servos or electronic speed controls, digital outputs, and analog/digital inputs. It supports three control methods: USB for direct computer connection, TTL serial for embedded systems, and internal scripting for standalone applications. The device's high-resolution servo pulses, with jitter less than 200 ns, make it suitable for demanding applications.
The Mini Maestro includes a free configuration and control program for Windows and Linux, facilitating easy configuration and testing over USB. It allows users to create sequences of servo movements and write scripts stored in the controller's 8 KB internal memory, capable of storing up to approximately 3000 servo positions. This feature enables the creation of self-contained animatronic displays that respond to external stimuli.
The partial kit version includes header pins that are not soldered, allowing for customization with different connectors or direct wire soldering for compact installations. A USB A to mini-B cable is required for computer connection.
Header pins included but not soldered
Width: 2.79 cm (1.10")
Length: 4.57 cm (1.80")
Three control methods: USB, TTL (5 V) serial, and internal scripting
0.25 μs output pulse width resolution
Pulse rate configurable from 1 Hz to 333 Hz
Wide pulse range of 64 μs to 4080 μs
Individual speed and acceleration control for each channel
Channels can be configured to go to a specified position or turn off on startup or error
Alternate channel functions: General-purpose digital outputs, analog or digital inputs
One channel can be a PWM output with frequency from 2.93 kHz to 12 MHz
Simple scripting language for complex actions
Comprehensive user’s guide
Free configuration and control application for Windows and Linux
Two methods to write software to control the Maestro from a PC
TTL serial features: Supports 300 bps to 200,000 bps in fixed-baud mode
Can be daisy-chained with other Pololu servo and motor controllers
Board can be powered via USB or a 5 V to 16 V battery
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
