RGB-621-R1 Module Configuration

Configure Modbus, I/O mappings, and RGB+CCT light levels via Web Serial. Firmware v0.3.0

Connection: Disconnected

Bus: —

Model: —

FW: —

WebConfig: —

Modbus ID: —

Baud: —

Device Setup

Serial connection and Modbus addressing.

Step 1

Modbus Address

Baud Rate

Serial Log

Communication messages and status updates.

Light Levels (0–255)

Adjust RGB and CCT output levels in real time.

Red 0

—

Green 0

—

Blue 0

—

Warm White 0

—

Cool White 0

—

Quick presets

Diagnostics

Physical PWM, Modbus in/out, WebConfig in. Live.

PWM — physical

—

Modbus IN (master writes)

—

Modbus OUT (master reads)

—

WebConfig IN

—

Wall-switch inputs (DI1, DI2)

Momentary: gestures and hold-to-dim. Maintained: output follows contact (closed = ON, open = OFF).

Onboard button (SW2 / GPIO1)

Engine timings

PWM channels

Min/max trim, fade, and power-on per channel.

Dimming

Hold-to-dim on wall switches. Group RGB = Red, Green, Blue · Group CCT = Warm white, Cool white (fixed by module hardware).

RGB-621-R1 Module Configuration

Device Setup

Serial Log

PWM trace

Light Levels (0–255)

Quick presets

Diagnostics

Wall-switch inputs (DI1, DI2)

Onboard button (SW2 / GPIO1)

Engine timings

PWM channels

Dimming

Scenes

Relays (1)

User LEDs (2)

Output quality