Learning and fast prototyping
hand-turned I2C knob with button and RGB feedback — a plug-in menu / setpoint input for a robot control panel; the board does the tick counting.
Engineering inference
SparkFun Electronics
SparkFun Qwiic Twist RGB Rotary Encoder
SparkFun DEV-15083 Qwiic Twist: an I2C rotary encoder breakout — Bourns PEL12T illuminated 24-detent encoder with push button and RGB LED (16 M colours, PWM), read by an on-board ATtiny84 that counts ticks and direction and reports them over I2C (0x3F default, 0x3E jumper, software-configurable, up to 111 on one bus), interrupt output, 3.3 V, ~2.8 mA (LEDs off) to 40.6 mA, 25.4 × 30.5 mm, 25 mm tall.
DEV-15083Development boardPrice$25.50SparkFun · unknown
Buy at SparkFun Overview
Motor essentials
Facts about the complete product. Unknown values remain open design questions.
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
No-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
3D model & CAD
3D model & CAD files
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
- Envelope (L × W × H)
- 30.5 × 25.4 × 25 mm
- Verification
- generated
- Envelope complete
- Yes
Signals & mounting
Signals and mounting
Resolution, output stage and the pads you wire — what the controller needs to count it.
- Sensing
- mechanical
- Type
- incremental
- Channels
- A/B quadrature (decoded on board)
- Output
- I2C registers (count, direction, button) + interrupt pin
- Supply voltage
- 3.3–3.3 V
- Mounting
- Qwiic board, 0.1 in PTH pins
| Pad / pin | Position | Role | Notes |
|---|---|---|---|
| GND | J3-1 | ground | ground |
| VCC | J3-2 | power in | 3.3 V |
| SDA | J3-3 | data | I2C data |
| SCL | J3-4 | clock | I2C clock |
| INT | J5 | other | interrupt output (10 kΩ pull-up, jumper) |
| RST | J10 | other | ATtiny84 reset |
CPR counts both edges of both channels on the sensed shaft; on a gearmotor multiply by the gear ratio for the output shaft.
Specifications
Motor performance
No-load, rated-load and stall figures retain their separate test conditions.
Stall torque and current are not continuous ratings. Check the duty cycle and starting load when choosing the driver and power supply.
Thermal limits by level
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Motor body
Mechanical dimensions
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
- Length
- 30.5 mm
- Width
- 25.4 mm
- Reported height / thickness
- 25 mm
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
Board connectors
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| qwiicQwiic I2C (JST SH 4-pin), two connectors + 0.1 in PTH pins | 4 | Unknown | — |
Complete structured record
Every available field, including details beyond the summaries. Null means the value has not been established.
Sourcing & files
Supplier offers
US / USD is the target market. Observed price and stock are separate from a delivery quote.
SparkFun
US · USD
$25.50Minimum quantity unknown
- Observed stock
- unknown
- Checked
- Oct 1, 2026, 11:53 AM UTC
- Delivery estimate
- Not quoted
Observed within the last 24 hours. Confirm the current supplier quote.
Visit supplier (opens in a new tab)Delivery depends on quantity, postal code and shipping method. A dispatch statement such as “ship today” is not an arrival estimate.
Design files and references
Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Datasheet (opens in a new tab)
Manufacturer reference
SparkFun Qwiic Twist (DEV-15083) — store photo (opens in a new tab)
Manufacturer reference
maker product photo
STEP (generated from datasheet drawing) — link unavailable
Generated asset
cad_check passed
Generated envelope geometry may also exist for this record. It does not replace manufacturer CAD or a verified electrical land pattern.
Source evidence
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.constraints.electrical.supply_voltage_max_v, spec.constraints.electrical.supply_voltage_min_v, spec.geometry.cad.bbox.height_mm, spec.geometry.cad.bbox.length_mm, spec.geometry.cad.bbox.width_mm, spec.geometry.cad.envelope_complete, spec.geometry.cad.mesh_path, spec.geometry.cad.step_path, spec.geometry.cad.verification, spec.geometry.dimensions.height_mm, spec.geometry.dimensions.length_mm, spec.geometry.dimensions.width_mm, spec.provides.channels, spec.provides.encoder_type, spec.provides.features, spec.provides.index_channel, spec.provides.interface, spec.provides.mounting, spec.provides.output_type, spec.provides.resolution_ppr, spec.provides.sensing, spec.usage.connectors, spec.usage.pinout, spec.usage.pinout_complete, spec.usage.requirements.other.pull_up, spec.usage.requirements.other.supply_current_ma
sha256 664ef3e1000e7471661fad9effc52e62a23f059e7e1fe8e15dab2b8cf9fb37c0
Supports: offers
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FAQ
SparkFun Qwiic Twist RGB Rotary Encoder questions
What voltage powers the SparkFun Qwiic Twist RGB Rotary Encoder?
Supply range 3.3–3.3 V.
How much does the SparkFun Qwiic Twist RGB Rotary Encoder cost?
From $25.5 at SparkFun. Prices are observed unit prices before tax and shipping.
What are the SparkFun Qwiic Twist RGB Rotary Encoder dimensions?
30.5 × 25.4 × 25 mm. A STEP model is available for enclosure fit checks.
Where does this SparkFun Qwiic Twist RGB Rotary Encoder data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Sources
- SparkFun Qwiic Twist RGB Rotary Encoder datasheet — SparkFun Electronics
- SparkFun listing