When I got my RFXcom I spend multiple hours to figure out how to use it together with my klikaan klikuit (KAKU) 433 MHz devices. In the end it appeared to be very, very simple.
Send a message to your KAKU device in python 3:
import serial
message = '0B11000200AAD51E09010F70'
serial_device = '/dev/ttyUSB0'
serial_rate = 38400
serial_timeout = 9
port = serial.Serial(serial_device, serial_rate, timeout=serial_timeout)
port.write(bytes.fromhex(message))
On a windows PC serial_device should be something like ‘COM4’.
The ‘message’ in the example above is build up as follows:
| Name | Length | Hex Example | Remark |
|---|---|---|---|
| Start | 4 | 0B11 | Same for all KAKU devices |
| Sequence number | 4 | 0001 | Can be ignored |
| ID | 7 | 0AAD51E | Unique for your remote |
| Button | 2 | 01 | Button on your remote |
| Command | 2 | 00 | 00 for ‘off’ 01 for ‘on’ 02 for ‘set level’ |
| Level | 2 | 01 | Only used if command is ‘set level’. It’s a value between 00 and 0f |
| ? | 2 | 00 | Can be ignored |
I’m using a 16 channel KAKU remote (AYCT-102)
The buttons of this remote are numbered as:
| Group | Button | Hex Code | |
|---|---|---|---|
| I | 1 | 01 | |
| I | 2 | 02 | |
| I | 3 | 03 | |
| I | 4 | 04 | |
| II | 1 | 05 | |
| II | 2 | 06 | |
| II | 3 | 07 | |
| II | 4 | 08 | |
| III | 1 | 09 | |
| III | 2 | 0A | |
| III | 3 | 0B | |
| III | 4 | 0C | |
| IV | 1 | 0D | |
| IV | 2 | 0E | |
| IV | 3 | 0F | |
| IV | 4 | 10 |
‘set_level’ can be used if you’re sending messages to a dimmer for led lights or fans.
For completeness a photo of the RFXcom device:
