3 Channel EMR Light Controller 2 Button 99+ Modes (Arduino-Based)

Key Features

• 99 preloaded modes: realistic traffic cycles, alternating patterns, step/chase sequences, flash/strobe effects, random modes, and special signal patterns

• On-board 3-digit display + 3 buttons: simple “cycle/select” operation—no computer required for everyday setup

• Adjustable timing up to 999 seconds per step (change durations directly on the controller)

• Settings memory: retains the last selected mode and programmed values after power off

• External control terminals: connect pushbuttons for Pause/Resume and Stop/Start control

• 3 independent relay outputs: drive three separate AC loads (NO/COM/NC terminals per channel)

• Universal mains support: 110–240VAC, 50/60Hz input and output compatibility

• On-board protection & status: 8A fuse, isolated low-voltage control section, and output status LEDs

• Arduino reprogrammable: firmware can be customized via Arduino if you want your own sequences

Detailed Description

This controller is designed for makers, hobbyists, prop builders, educators, and installers who want a reliable way to automate a 3-lamp traffic signal or similar multi-light setup. It comes with 99 built-in operating modes, so you can run anything from standard intersection timing to attention-getting flash patterns—without writing code.

Setup is straightforward: use the on-board display and SET / UP / DOWN buttons to select a mode and adjust timing. Once configured, the controller stores your selections in memory, so it powers back up exactly the way you left it. For hands-on operation, add two external pushbuttons using the dedicated terminals—ideal for demonstrations, training rigs, test benches, and interactive displays.

Because this is Arduino-based, advanced users can reprogram the logic to create custom sequences, special timing rules, or unique behaviors for their projects.

Recommended use: educational demos, private property displays, film/prop work, model intersections, workshop indicators, and home/garden lighting projects.
Not intended for public roadway control or safety-critical signaling.

Technical Specifications

• Input voltage: 110–240VAC, 50/60Hz

• Outputs: 3× relay channels with NO / COM / NC terminals

• Relay rating (per channel): up to 10A @ 250VAC / 10A @ 30VDC (use appropriate derating for inductive loads)

• Suggested load guidance: up to 500W per channel (as labeled on the board)

• Protection: 8A fuse (on-board)

• User interface: 3-digit 7-seg display + SET/UP/DOWN buttons

• External controls: Pause/Resume and Stop/Start pushbutton terminals

• Controller platform: Arduino-compatible (USB programmable)

• Neutral wiring: neutrals are interconnected (as labeled)

• Size / weight: approx. 150 × 67 × 20 mm, ~79 g

More Documents: https://github.com/iotmug/3ch-EMR-7Seg-3PushButton-traffic-light-controller-with-2Extarnal-Inputs