Boardoza Rotary Encoder EC1101S Breakout Board

The Boardoza Rotary Encoder EC1101S Breakout Board is a multifunctional input and visual feedback solution that combines a mechanical rotary encoder with an integrated push button and addressable RGB LEDs (ARGB) on a single compact PCB. This board converts rotational motion into digital signals while simultaneously enabling dynamic visual effects through programmable LEDs.

By integrating 14 cascaded ARGB LEDs directly around the encoder, the board allows users to visually represent rotation, direction, speed, or system states. Each encoder movement can be interpreted by a microcontroller (such as Arduino, ESP32, or similar platforms) to control LED color, brightness, and animation patterns, making it ideal for interactive interfaces, control panels, and creative electronics projects.

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Front Side	Back Side

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Key Features

• Rotary Encoder with Push Button: Mechanical rotary encoder with integrated momentary push button for menu navigation and user input.
• Integrated Addressable RGB LEDs: Features 14 cascaded ARGB LEDs for dynamic visual feedback and animation effects.
• Quadrature Output Signals: Provides A and B channel outputs for accurate direction and rotation detection.
• Visual Motion Representation: Encoder rotation can be visually expressed through programmable LED color, pattern, and brightness changes.
• Wide Logic Compatibility: Fully compatible with both 3.3 V and 5 V microcontroller systems.
• Expandable LED Chain: ARGB data and clock input/output pins allow cascading with additional LED boards.
• 20 Pulses per Revolution: Provides 20 pulses per 360° rotation (per phase) for precise rotational detection.

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Technical Specifications

Model: Rotary Encoder EC1101S
Manufacturer: Boardoza
Encoder Type: Mechanical rotary encoder with push button
LED Type: Addressable RGB (ARGB)
Number of LEDs: 14
LED Interface: Serial Data (DIN/DOUT), Clock (CIN/COUT)
Signal Outputs: Encoder A, Encoder B, Push Button (SW)
Input Voltage: 3.3 V / 5 V
Logic Level: 3.3 V / 5 V compatible
Operating Temperature: -40 °C to +85 °C
Board Dimensions: 40 mm × 40 mm

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Board Pinout

( J1 ) Main Connector

Pin Number	Pin Name	Description
1	VCC (3V3–5V)	Power supply input
2	SW	Encoder push button output (Active Low)
3	DOUT	ARGB serial data output
4	COUT	ARGB clock output
5	CIN	ARGB clock input
6	DIN	ARGB serial data input
7	Terminal_B	Encoder B channel output
8	Terminal_A	Encoder A channel output
9	GND	Ground

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Board Dimensions

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Step Files

Boardoza ROTARY ENCODER.step

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Datasheet

• PLCC IC + RGB LEDs Datasheet.pdf
• ROTARY ENCODER EC1101S Breakout Datasheet.pdf

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Version History

• V1.0.0 – Initial Release

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Support

• For questions or technical support, please contact [email protected]

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License

This repository contains both hardware and software components:

Hardware Design

All hardware design files are licensed under Creative Commons Attribution-ShareAlike 4.0 International License.

Software/Firmware

All software and firmware are licensed under BSD 3-Clause License.