Beiträge von Thanassis Adamis

  • Shelly Dimmer 2 without N - flickering problem with 2 and 3 bulbs

    Update.

    Today I connected N to the shelly dimmer 2. I used an external cable for N, just to test whether connecting N would solve the problem.

    The result is that the dimming works perfect with the N connected.

    My conclusion based on the observations here is:

    1. The specific Shelly Dimmer 2 (device and framework) does not work OK with more than one dimmable bulbs connected, without N to the Shelly, using by-pass.

    2. The specific Shelly Dimmer 2 (device and framework) work OK with one dimmable bulb, without N, using by-pass.

    3. The specific Shelly Dimmer 2 (device and framework) work OK with one, two, three dimmable bulbs, with N connected to the Shelly.

    Hope this information is useful to someone. Perhaps to Shelly people, too, to solve the problem present without N and with more than 1 bulb, if solvable in firmware.

    I think we can close this thread now, although it's unresolved, because I will now install a permanent N cable to the location of the switch (I have to dig the wall and open some electrical boxes to bring the N cable to the box), so I will not be able anymore to troubleshoot the original problem of this thread.

  • Shelly Dimmer 2 without N - flickering problem with 2 and 3 bulbs

    Hi,

    I have installed a Shelly Dimmer 2 with 3 dimmable Philips bulbs 3.4W, attached. The lamps are exactly same.

    I experience frequent and random flickering, with all the calibration methods I tried (with and w/o By-pass option set, with and w/o auto load detection set).

    The Shelly has been installed on the wall without N, so I use a by pass module on the lights. I saw other threads having similar problem with N present, so I thought this is different problem to report separately.

    I have also tried the antiflickering debounce option with a few values (80, 100, 150), it didn't help.

    Flickering does not happen when dimmer is set at < 30%

    When I disconnect any two of the three lamps, calibrate and operate with one lamp (any of the three) the operation has no flickering, it's perfect. I also tried to connect a second and the third lamp using the calibration created with one, but it didn't help. After connecting the second, flickering starts.

    Any ideas what is the problem and how to solve? Why more than 1 lamp connected creates the problem?

    The firmware of Shelly Dimmer 2 is 20211109-131033/v1.11.7-g682a0db.

  • Compatibility of Dimmer 2 with Dimmable Triac leds

    Hi,

    I've installed several shelly 1 PLUS, 2.5 and 1L in my house and I'd like to install a couple of Dimmer 2, for two LED lamps.

    I'm not sure, though, about the compatibility with Shelly Dimmer 2.

    I've found the following related information on the lamp data-sheet and installation guides:

    • Dimmable Triac
    • Lamp Connectors: Live, Neutral and Earth
    • Driver: Included

    Links: datasheet, installation guide

    Can someone help?

  • Searching for relay to trigger the main Latching Relays

    Hi everyone,

    I have several Latching relays in my home electric panel, which are used to control various things like for example., on/off power to a transformer that powers up external garden lights. The main Latching Relay is controlled by various monetary buttons around the house.

    I'd like to use a Shelly relay (1 PLUS for example) to act as a monetary button. Shelly should close the circuit e.g., for 200ms and then open it, i.e., emulating the push of a button by a human. The Shelly relay could be installed then in parallel to the existing buttons (provided that I have L and N at the location)

    Can this be done by a Shelly 1PLUS ?

    Thanks and Regards.