S1-B AC100-240V AC Triac RF Dimmer
Hello,
Has anyone tried this device?
The best part is that it allows you to have a commuted installation using push switches and 2.4Ghz RF remotes:
Anyone knows if is possible to control these devices using a NRF24L01 chip? I have found information about connecting to milight devices, but I suppose it won’t be compatible…
I bought the Triac S1-B and the NRF24L01-chip and will try it as soon as it arrives (could take a while form china).
I will try to remember to post the results.
any news?
I found out that they work on channel 78 and are probably sending with 1mbps. I can also see what I think is a packet of around 90 bytes getting send multiple times when I use the remote. I cannot say for sure that they are this long because the NRF24L01-chip can only receive and send 32 bytes payload at once and I had to “follow up” the rest. Because of this I believe the NRF24L01 might not be able to send the needed packets. A more lowlevel transceiver is probably needed to do this kind of project. I will not be trying more on this in the next time, sorry. But I would appreciate any further tips regarding this 
Maybe you can use this: Shelly
They have a easter promotion where there products are cheaper: Shelly-Shop
The Shelly2 seems to be similar to the S1B. They don’t have a dimmer and remote controll but 2 switches a integratet power meter and I think if you want a remote controll you can use pimatic to controll it.
digging out an old thread here, but I do have the same challenge. I want to control one or more S1-B dimmer units using a NRF24L01 connected to an esp32 (or any other arduino compatible MCU). Anyone else made some progress on this issue?
I tried to find the manufacturer of this unit but didn’t get very far, also no real technical datasheets seem to be available on the net (or at least I couldn’t find any).
If you’re in possession of the remote a straightforward approach could be to wire the remote button with the GPIO channels of the ESP: In this case it might even be possible to use a generalized firmware for ESP like tasmota if you can mimic one of the existing led controls.
Of course, that’s a “send only” solution and you will not be able to capture a status change if another remote is used. Anyhow, may be it is good enough. Assuming the Dimmer is a “receive only” device it won’t be possible to detect status changes when the wall switch/button is turned/pushed.
As @V1per stated earlier you may be better off with a Shelly device. I think they do not yet offer a general purpose dimmer, but they offer a LED dimmer at least.
"It always takes longer than you expect, even when you take into account Hofstadter's Law.", Hofstadter's Law
Thank you mwittig for your reply.
I do have the remote and I might open it up to reverse engineer in the end.
Using Shelly is NOT an option, I need a more versatile leading and trailing edge phase cutting device, which so far Shelly does not offer. Also sonofff didn’t seem to offer such a dimmer so far to my knowledge.
This is so far the only ready made device I found for my purpose for a reasonable price.
I am building a 5 channel dimmer my own utilizing FL5150MX chips but this will be a DIN Rail Mount device. The benefits of the S1-B is not only the price but also the size, since just like the Shelly it fits easily behind a switch in the wall.
The fact you mentioned about the possible lack of a back channel from the S1-B to remote controller unit is indeed another thing to keep in mind, which might make it less interesting to use in an automated environment
