CXRF Command - RF 433 MHz Receiver

Enables the RF433 MHz receiver module for ASK/OOK code reception.

What is it for?

Use case	Description
🔐 Access control	Identification with RF cards/keyfobs
🆘 Panic button	Remote wireless alarms
🚪 Opening sensors	Door/window detection
🎮 Remote control	Remote control of functions

Description

The RF433 module allows receiving modulated codes in standard ASK/OOK (Amplitude-Shift Keying / On-Off Keying) format at 433 MHz frequency.

Commands

Configure


SCXRFa

Query


QCXRF

Response


RCXRFa

Parameters

Value	Status
0	Disabled
1	Enabled

Use with Event Engine

Received codes are interpreted the same way as iButton codes, allowing:

Execute actions
Generate events
Combinations of actions and events

Code Visualization

Incoming RF codes can be visualized in debug mode:


>SDB1<

See DB Command for details.

Code Validation

General validation

RF codes can be validated in the same user session code list using IC Command.

Individual validation

For triggers by individual RF code, use ICL Command.

Examples

Enable RF receiver


>SCXRF1<

Configure RF code validation


>SICL01 0123456789ABCD<

Adds RF code to valid codes list.

Create individual trigger


>SICL1,CODIGO_RF_APERTURA,ABRIR_PUERTA<

Associates RF code to specific action.

Applications

Access control: RF433 cards/keyfobs
Panic buttons: Remote alarms
Wireless sensors: Opening/closing detection
Remote control: Remote control of functions

The SCXRF/QCXRF handler in the firmware is not gated by hardware-model macros (unlike other CX blocks such as CAN or BTH): in practice it can respond CMDOK on any device line, including IoT. The compatibility table below only lists the models that have the RF433 receiver physically soldered on; on a device without that hardware the command may accept the value without it having any real effect.

Compatibility

💾Firmware:v1.08.00

C5Legacy