Triple Low-voltage PWM Controller: F&Home Radio rH-PWM3

Code: F1430
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Triple Low-voltage PWM Controller: F&Home Radio rH-PWM3
View of the device

Triple Low-voltage PWM Controller: F&Home Radio rH-PWM3
Top view

The rH-PWM3 module controls three low voltage receivers powered from an external DC source (12 VDC). The power regulation is performed by pulse width modulation (PWM). The frequency of the pulses is set in the range 100 Hz to 1 kHz. The communication with the server takes place by radio. The rH-PWM3 module is particularly suitable for controlling LEDs, electromagnetic locks and other low voltage devices.
Symbol in design and configuration software:
The symbol of rH-PWM3
The rH-PWM3 module is represented by object that consists of three channels that read the power and time information from their inputs. The assigned algorithm limits the maximum power for each channel, and controls the connected devices (LEDs or other loads) in compliance with the start/stop times and attributed power levels. The confirmed status of each channel is provided on its output as a feedback.
  • Make sure the 12 VDC power source is switched off.
  • Connect the wires according to the diagram above.
  • Place the module in a suitable installation box.
  • Adjust the antenna wire parallel to one of the server antennas, as far as possible from the other wires.
  • Switch on the power source.
  • Register the device in the system.
  • Close the installation box.
An example application:
In the diagram above, the F2106 module is used to switch on/off and alter scenes in two areas or rooms. A change is triggered by a momentary switch connected to the pins 1 or 3 of the module and executed by the first or second logical object. A change of the state at pins 2 or 4 switches off the relevant light scene. The F1430 module can control an RGB LED strip to change effective color of the light in the scene. The F1432 module can control the brightness of the light. This object is connected with the F2106 module. Momentary switches connected to its inputs can switch off the scenes.
A more advanced scheme for lighting control can be found in the Lighting control project article.
About the system:
Name F&Home Radio rH-PWM3
Code F1430
Power 12 VDC / 30 mA
RF communication band [MHz] 868
Communication mode
Data encryption YES
Open space range
100 m
Loads 3 x 4 A / 12 VDC
Smooth switching-on (increasing power from 0 to a set value)
0.2 s ... 30 s
PWM frequency
100 ... 1000 Hz  (step 100 Hz)
Temperature measurement resolution 0.1ºC
Battery monitoring YES
Operating temperature range 0ºC ... 45ºC
Operating humidity / environment
<= 85% (no condensation of
water vapor) / no aggressive gasses
Protection measures against
overloading (overheating)
overvoltages on the receivers
Dimension [mm] 48x48x22
Ingress protection rating
IP 20


F&HOME RADIO integrates electrical installations in such a way that the processes of heating, air conditioning, ventilation, lighting, alarm and access control form one efficient system - all for the safety and comfort of the residents. With wireless two-way communication between the central unit (server) and both sensors and actuators, software solutions, as well as remote control of the system that can performed by the users in many ways, the system allows them to manage home energy resources in a manner appropriate to their needs.
In practice, this means the ability to integrate electrical appliances in such a way that a hand gesture can create a romantic light scene in the living room and bedroom, pull down the shutters or blinds and adjust the interior temperature, for example. The option of remote control via the Internet ensures that even after our return from a long journey we are welcomed by the house as if we have never left.


Name rH-PWM3 module
Product type Relay, LED controller
System F&Home Radio
Mounting In-box
Transmission type Two-way
Frequency MHz 868
Applications indoor
Number of relays 3
Relay parameters maximum current A 4
maximum voltage V 12
contact type PWM
Receiver parameters number 1 (LED RGB) or 3 (LED)
PWM frequency Hz 100...1000
czas przełączania 0-100% S 0.2...30
Power supply voltage VDC 12
Protection rating IP20
Humidity % 0...85
Dimensions mm 48 × 48 × 22