Open Source RoboticsRobots, software & learning

Servotor32

Control board

AVR servo-controller board with Eagle circuit/board design and Arduino-compatible control source. [1] [5] [7] [4] [6]

Build & first use →Official websiteUpstream build guide

For
Robotics developers with electronics/CAD and configuration expertise [1] [5] [7] [4] [6]
Cost
No current cost or bill of materials established yet.
Source rights
Some licenses are unresolved. Review licenses
Unknowns
host computer, tools, operating system not fully established. Review gaps

Source researched · Not tested by us
Sources checked · Research details

Licenses & related hardware
License
CC-BY-SA-3.0, MIT · license not fully assessed for documentation · Details by part

Requirements · Research details and dates

On this page

Overview

Servotor32 is an ArcBotics servo-controller board with Eagle electronics sources and an Arduino-compatible AVR library. Its inspectable contribution is the board and embedded control implementation. It is not a complete robot, a closed-loop servo-feedback system or a current claim about board availability. [1] [4] [7]

Is this for you?

Known limitations
  • README calls hardware CC-BY-SA 3 United States but links generic 3.0 license URL; jurisdiction locator conflict retained.
  • No complete historical board/toolchain/servo budget or current stock established.
  • Actual Eagle files and library source inspected; no native DRC/firmware build/powered servo operation.

Editorial assessment of bounded source evidence; no runtime, fit, manufacturing or compatibility proof.

[1] [5] [7] [4] [6] · Editorial assessment

What you need

Dependencies
  • AVR Arduino environment; library metadata requires Arduino >=1.5.0
  • Exact Servotor32 board, matched servo power/logic wiring and host protocol

[1] [5] [7] [4] [6]

Hardware & parts

Hardware configuration

AVR servo-controller board with Eagle circuit/board design and Arduino-compatible control source.

Editorial assessment of bounded source evidence; no runtime, fit, manufacturing or compatibility proof.

[1] [5] [7] [4] [6] · Editorial assessment

Actuators
  • No complete actuator contribution; component/design reference used with separate robot hardware

[1] [5] [7] [4] [6]

Assembly & first use

Open the upstream getting-started guide [1] [5] [7] [4] [6]

  • Inspect actual Eagle schematic/board and source pin/timer/servo interface before power.
  • Match AVR Arduino library metadata and historical Servotor32 configuration.
  • Review separate servo power and application commands; no flashing or actuation performed.

Editorial assessment of bounded source evidence; no runtime, fit, manufacturing or compatibility proof.

[1] [5] [7] [4] [6] · Editorial assessment

Cost

No current, complete configuration-specific build cost has been established for this profile.

3D preview

Preview not available yet. No hosted preview has been prepared for the configuration described in this profile. Inspect the linked sources and their reuse terms; a manufacturing-ready assembly has not been established by this preview status.

Model sources

No hosted preview has been prepared for the configuration described in this profile. Inspect the linked sources and their reuse terms; a manufacturing-ready assembly has not been established by this preview status.

Project notes

Start with the AVR implementation, not a generic Arduino assumption

The inspected library metadata says version 2.0, AVR architecture and Arduino 1.5.0 or later. That is a historical source declaration, not a modern board-core compatibility matrix reproduced here. Select the actual Servotor32 configuration and inspect its source before attempting an upload. No library installation or firmware compilation was performed. [4]

The full source's begin method sets AVR port registers, configures host Serial at 9600 baud and reconfigures a Bluetooth serial interface before setting up SPI and a timer interrupt. It initializes servo state and directly disables several Arduino timer interrupts. The comments identify consequences for ordinary Arduino delay and tone behavior, and the library supplies replacement timing helpers. Those assumptions matter if combining this code with another Arduino application or timer-dependent library. [7]

Servo position bookkeeping in the source describes where servos are supposed to be; it is not measured position feedback from a physical servo. Inspect the command/timing path and chosen servo pulse requirements before integrating a robot application. An initialized array or serial command is not evidence that a servo moved. [7]

Bound the first investigation

At revision 879d1223cb3295015c16d9c7d433111c74f0366e, compare Board/Servotor32.sch and Board/Servotor32.brd with Code/Servotor32/library.properties and Code/Servotor32/src/Servotor32.cpp. The source parser collects digits for #<channel>P<position>, accepting channels 0–31 and positions 500–2500 when terminated by carriage return or newline. Its internal -1 off sentinel is not a signed position accepted in that field: the minus sign is ignored. The source instead has #<channel>L for individual-channel shutdown and K for all channels; these command paths were read, not tested. These are parser conditions, not measured pulse widths or safe travel limits for every servo. Match the actual host commands and power arrangement before flashing or applying load. No current complete cost, native DRC, firmware upload, serial session, pulse measurement, powered servo movement or timing performance was established. This is a source-supported controller reference with distinct hardware/software licensing, not a commissioned motion system. [1] [5] [6] [7]

What we checked

Pinned source and selected artifact structure review only; no dependency installation, upstream build, native CAD/kernel/fit/strength validation, fabrication, wiring, calibration, simulation, powered operation or performance testing. Original archives stay private.

Not yet established

  • Requirements: operating system, host computer, tools

Updates

Upstream last updated
Not established
Latest release
Not established
Profile updated
Nov 1, 2026
Sources last checked
Nov 1, 2026
Next review
Dec 1, 2026
Reviewed revision
879d122

Source files and licenses

Distinct inspectable robotics hardware component with bounded initial inspection route; limitations/rights explicit.

LayerAvailability / license
electronicsavailable · CC-BY-SA-3.0
README saysUnitedStates butlinks generic3.0; exactjurisdictiongrant shouldbereconciled. [6] [1]
firmwareavailable · MIT
READMEsoftwareMITgrant; thirdpartybootloader/dependenciesseparate. [7] [1]
documentationavailable · License not fully assessed
No blanketdocumentation/media grant inferred. [1]

Outside the selected contribution; no separate released layer claimed.

Inspect the actual electronics and license boundary

The original Eagle schematic and board were fetched and matched to pinned Git identities. XML parsing found schematic parts/nets and board elements/signals. Those records establish actual design source, not successful native Eagle opening, correct routing, manufacturing readiness or a powered servo interface. Determine the servo-power arrangement and its relationship to logic power from the complete schematic before assembly; the supplied structural inspection does not establish those connections. [5] [6]

The README declares hardware under Creative Commons Attribution-ShareAlike 3.0 United States, but links the generic 3.0 license URL. Preserve that jurisdiction/locator discrepancy rather than quietly substituting an exact legal instrument. It separately grants MIT terms for software. That software grant does not automatically settle third-party bootloader material, external libraries or bought-in servos. [1]

References

Each source links to the exact revision we read. “Used for” shows where this page relies on it.

Correction guidance · Discussion is not enabled · Profile format 0.7.0-draft.5

Change history