Hallo,
I wanted to share my ESPHome custom light project to control my Hamulight LED spots.
These spots came with the garden room and use a proprietary protocol. So I had to reverse engineer the signal from the remote. I did this using a software defined radio and Universal Radio Hacker software.
It uses an ESP32 with an RF433 sender to replicate the signal from the remote.
my remote broke and I bought a new one. The instruction guides that only one remote control at a time is working. And I have to connect it with power off, on and click the upper Button 5 times. Seems every system have it’s own code?!
Hi @aukedejong kan je meer details geven over de ESP32 die je hebt gebruikt, pins etc?
Ik probeer het hier ook, maar helaas werkt het nog niet en ik weet even niet waarom.
Ik heb een esp32 devkitc v4. Gezien je code, dacht ik deze aan te sluiten aan de pin 25. Ik heb twee soorten RF433. Wordt zeer gewaardeerd als je deze info kan geven.
Thanks for your reply. Unfortunately its not working at my side, also not near the adaptor.
I have the same adaptor (L2046) from Hamulight.
Unfortunately, I’m not expert on the 433 RF. So unfortunately I don’t know how to do reverse engineering nor how to read the values. I do have a 433 receiver with ESPHome. not sure if I see even values from the standard remote from the adaptor.
Will order a new RF transmitter from Ali and check if that works. Keep you posted here. Or if you have any other hits or tips, I’m happy to try.
I read the link to the manual you provide. It looks like the same remote.
I never paired it, but maybe the installers did this.
This could explain why the project is not working for everyone. Some part of the RF signal could be a code/number created during pairing.
Yes I recently got the L2446 remote. I used my RTL-SDR to find that it appears to be using FSK (frequency shift keying) so I ordered a transmitter on Aliexpress. I’ll post an update here soon.
I opened the remote and it contains a BS84B08C microcontroller and a BC2102 capable to OOK/FSK transmitting. My Boardlink RM pro seems not able to handle that.
Hi, I have also have the L2446 remote for Hamulight. Trying to receive the signal using a Sonoff RF bridge flashed with esphome and the passthrough firmware of the radio chip by Mightymos. However I do not receive anything from the remote, even with dump set to raw I find nothing in the log files. Any thoughts on what to do next?
I really would like to control the veranda lights using HA, using a separate remote works but feels old fashioned and no automations possible. Alternatively, modifying the remote by controlling the switches from an ESP?
Found out that my radio chip flash was bad. The red light on the RFbridge is supposed to be active after boot, just is the blue one for the WiFi. The receiving part works, now looking for the messages from the remote.
