Shelly Dimmer / Dimmer2 support possible ?

[andyblac]

as title do you think Shelly Dimmer would possible ?

[rojer]

in principle, yes. but it has secondary microcontroller, which is an additional complication.

[andyblac]

I could do with it, would you be willing to take a look if I send you one ?

[andyblac]

could this help ? https://github.com/alexryd/homebridge-shelly

[rojer]

no, that's not relevant.

i would not recvommend starting with dimmer. implementing input as push button would be easier and get you acquainted with what implementing a HAP service entails.

[andyblac]

an a dimmer act as on/off too ?

[rojer]

what's the use for the dimmer without, you know, dimming functionality?
i think we should hold off declaring support for shelly dimmer until dimming is implemented.
in terms of HAP, that would mean implementing a lightbulb service, which supports variable brightness.

[andyblac]

so if I purchased a shelly dimmer I could try adding as a switch to start ?

[kzyapkov]

The dimmer is indeed not the device to start with. If lighting is your thing, try the LED drivers, they should be much simpler, using PWM for output control.

As for the dimmer -- we plan on releasing info about the UART protocol used to control the small MCU which does the actual dimming, but no ETA.

[andyblac]

ahhhh. atm I'm using Philips Hue, but tbh it is unreliable, found shelly's much more so and it is instant, I was hoping to replace my Hue with Shelly's.

[kzyapkov]

please drop a note to developers@shelly.cloud, we may be able to help

[andyblac]

atm I have zero knowledge of HAP or MOS, I am a python coder. mOS looks vastly different, I am trying to read through this git code to try to get an understanding of it.

[rojer]

right, so dimmer is not a good start. better pick a simpler issue to tackle.
for HAP, your bible is HAP-Specification-Non-Commercial-Version.pdf. you can download it from here. you'll need to login with apple id but it's free of charge.
get familiar with the concepts - controller, accessory, service, characteristic, event.
then read existing code to understand how services are defined and characteristics and events managed. fortunately, it's not that much - all of the "switch" service implemented by shellies is contained here.

in terms of coding - yeah, it's the good old C, not Python. not much do be done about it, i'm afraid. either you pick it up, or you won't be able to do much.

[andyblac]

thanks, I have some homework to do 😄

[sebastianheise]

Hi guys! How are you doing? I've caught up on this thread and had a look at the HAP.
From my understanding a dimmer would be implemented using the brightness characteristic. Correct? So instead of a switch, the device would need to authenticate as a light bulb service. Is that assumption correct? Unfortunately I also don't have any experience in HAP and MOS, but it sounds like a fun project. If I can help with anything I'm all keen. Just give me a yell. Would be awesome to have support for the Shelly dimmer!

[rojer]

yes, that is correct.

…

On Mon 24 Feb 2020, 09:34 Sebastian Heise, ***@***.***> wrote: Hi guys! How are you doing? I've caught up on this thread and had a look at the HAP. From my understanding a *dimmer* would be implemented using the *brightness* characteristic. Correct? So instead of a switch, the device would need to authenticate as a *light bulb* service. Is that assumption correct? Unfortunately I also don't have any experience in HAP and MOS, but it sounds like a fun project. If I can help with anything I'm all keen. Just give me a yell. Would be awesome to have support for the Shelly dimmer! — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#14?email_source=notifications&email_token=AAEBW22ZN6MVSONBO7SYKX3REOIAXA5CNFSM4KUBHZDKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEMXEHNI#issuecomment-590234549>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAEBW2YH2NXSTSSSHOR4HF3REOIAXANCNFSM4KUBHZDA> .

[ratkins]

This project claims Shelly Dimmer support, has anyone tried it? (There don’t seem to be any configuration settings for “leading edge” vs “trailing edge” as mentioned upthread.)

[FI97MaWa]

Please, stop spamming. If you want to express your support for this issue, click +1 on the first comment, or use the comment field in the donation form 😉

How much should the donation be to have an impact on your motivation 😄
You’re doing a great job!

[andyblac]

Please, stop spamming. If you want to express your support for this issue, click +1 on the first comment, or use the comment field in the donation form 😉

How much should the donation be to have an impact on your motivation 😄 You’re doing a great job!

Unfortunately it not about motivation, it about the complexity of the device, the Dimmer2 can over heat and burn if the wrong code is chosen for the wrong bulb (Leading Edge / Trailing Edge), so it requires a lot of work to make it safe to autodetect what bulb type is in use.

@rojer has already blew up his laptop trying to code this device, it had to go in for repair, since then it has been put on back burner as he need to find more time he can allocate to this device.

[miguelpruivo]

@andyblac the HAA (Raven esp) has support for it — already tried it and it works nicely but I find the configs a bit complex (seems to be due to the way it optimizes it for performance reasons).

Is this a lot different implementation wise than the HAA?

[andyblac]

@andyblac the HAA (Raven esp) has support for it — already tried it and it works nicely but I find the configs a bit complex (seems to be due to the way it optimizes it for performance reasons).

Is this a lot different implementation wise than the HAA?

but does it fully support leading / trailing edge or just 'dimming' ?, if you dont have control over what type, then I would not trust it, as the device could overheat and burn, which could cause a fire.

there are several supposedly support HomeKit dimming on Amazon, None of them support dimming type, and thus I would never buy such a botched supported firmware.

[FI97MaWa]

Unfortunately it not about motivation, it about the complexity of the device, the Dimmer2 can over heat and burn if the wrong code is chosen for the wrong bulb (Leading Edge / Trailing Edge), so it requires a lot of work to make it safe to autodetect what bulb type is in use.

To bad it's not just the motivation. :-) But I understand that it's not that easy.
Anyway, you guys are doing a great job.

[robertoamoreno]

Might help

Custom firmware for the Shelly Dimmer 2
https://github.com/Mollayo/Shelly-Dimmer-2

Shelly-Dimmer-2-Reverse-Engineering

https://github.com/Mollayo/Shelly-Dimmer-2-Reverse-Engineering

[Imburdalinix]

Please, stop spamming. If you want to express your support for this issue, click +1 on the first comment, or use the comment field in the donation form 😉

How much should the donation be to have an impact on your motivation 😄 You’re doing a great job!

Unfortunately it not about motivation, it about the complexity of the device, the Dimmer2 can over heat and burn if the wrong code is chosen for the wrong bulb (Leading Edge / Trailing Edge), so it requires a lot of work to make it safe to autodetect what bulb type is in use.

@rojer has already blew up his laptop trying to code this device, it had to go in for repair, since then it has been put on back burner as he need to find more time he can allocate to this device.

Quick question... Can't you just look into the Shelly Source Code and copy it from there? I am not a programmer or any kind of Tech Pro, but I just wanted to know if this whould work... If the Source Code isn't public it whould make sense that you haven't done it but if it was... then why whouldn't this work? Or whould it?

[jonathanlang]

@Imburdalinix If it was that easy, they probably would have done it already... as you can tell from the link above your comment, the firmware has to be reverse engineered and is not just something you can copy & paste.

[just-doit]

Since it seems that there's not much chance of any progress soon, does anyone have any suggestions for a HK compatible, safe alternative to shelly dimmer? I need to dim an array of ceiling LED's which I can't swap out to smart GU10's.

I can recommend getting a Raspberry Pi (can be an older model too) and installing Homebridge on it. Then the Pi will act as a basestation and allow control of Shelly dimmers perfectly.

I currently have my Shelly Dimmers also connected to Apple Home via a Raspberry Pi with Homebridge. But I would like to do without this "detour".

[lucassite120]

I OTA flashed a Shelly Dimmer and it works fine, with https://github.com/RavenSystem/mgostoHAA

[just-doit]

I OTA flashed a Shelly Dimmer and it works fine, with https://github.com/RavenSystem/mgostoHAA

Do you mind to share the MEPLHAA Script you used after flashing the HAA firmware?

[lucassite120]

I OTA flashed a Shelly Dimmer and it works fine, with https://github.com/RavenSystem/mgostoHAA

Do you mind to share the MEPLHAA Script you used after flashing the HAA firmware?

Sure! I copied it from here: https://github.com/RavenSystem/esp-homekit-devices/wiki/devices-database

{"c":{"io":[[[16],2],[[13],6],[[12,14],6,0,1]],"r":[{"n":0}],"l":16,"b":[[13,5]]},"a":[{"t":30,"b":[[13],[12,0],[14],[14,0]],"0":{"u":[{"v":"010202060000f401000000ff04"}]},"y0":[{"v":1,"0":{"u":[{"v":"010202060a00f4010000010904"}]}},{"v":5,"0":{"u":[{"v":"010202063200f4010000013104"}]}},{"v":10,"0":{"u":[{"v":"010202066400f4010000016304"}]}},{"v":15,"0":{"u":[{"v":"010202069600f4010000019504"}]}},{"v":20,"0":{"u":[{"v":"01020206c800f401000001c704"}]}},{"v":25,"0":{"u":[{"v":"01020206fa00f401000001f904"}]}},{"v":30,"0":{"u":[{"v":"010202062c01f4010000012c04"}]}},{"v":35,"0":{"u":[{"v":"010202065e01f4010000015e04"}]}},{"v":40,"0":{"u":[{"v":"010202069001f4010000019004"}]}},{"v":45,"0":{"u":[{"v":"01020206c201f401000001c204"}]}},{"v":50,"0":{"u":[{"v":"01020206f401f401000001f404"}]}},{"v":55,"0":{"u":[{"v":"010202062602f4010000012704"}]}},{"v":60,"0":{"u":[{"v":"010202065802f4010000018b04"}]}},{"v":65,"0":{"u":[{"v":"010202068a02f4010000010904"}]}},{"v":70,"0":{"u":[{"v":"01020206bc02f401000001bd04"}]}},{"v":75,"0":{"u":[{"v":"01020206ee02f401000001ef04"}]}},{"v":80,"0":{"u":[{"v":"010202060032f4010000013104"}]}},{"v":85,"0":{"u":[{"v":"010202065203f4010000015404"}]}},{"v":90,"0":{"u":[{"v":"010202068403f4010000018604"}]}},{"v":95,"0":{"u":[{"v":"01020206b603f401000001b804"}]}},{"v":100,"0":{"u":[{"v":"01020206e803f401000001ea04"}]}}]}]}