New doorbell will be soon on stock

As the demand for the doorbell is still high, I’ve decided to redesign the whole doorbell to make it more easy to produce. As where I normally would solder the relay, capacitors, headers and connectors by hand, it was a time consuming job. With this new design it’s fully assembled, except the wemos (on purpose).

I could have made it all on one pcb (so the esp12f, or another version), yet the pcb would even be larger than it is now, as double sided assembly isn’t supported by JLCPCB (yes, this I trust them to make/assemble this). And when an esp dies, its easier to replace by the customer.

I’ve got for now about 16 pieces left for in the webshop, and another 120 will be within a few weeks.

There’s also a case ready for the doorbell, which will be sold separately.

Got no real (good) product photo’s yet, but these I took a while ago:


  1. Arjen

    Hi Marcel,

    When is ‘soon’? I would like to try this since my wireless doorbell rings all the time without somebody pressing the button. I now control the power to the chime so it shutsdown after 23.00 lol.

    Also, what type of chime do you recommend with this setup? Do you have a link maybe?

    Thanks for your reply and hard work.

      1. Arjen

        Awesome! I see it’s in stock, will quickly grab one. As I mentioned I will have to move over from a cheap wireless version back to a wired version.

        Any recommendations on buttons or chimes to use with your product?


          1. Ben Schol

            Hi Marcel,

            How is the bell in the attic connected? Is it also attached to the ‘slimme deurbel’? I’m looking for something where I do not need to pull a second wire to my attic.

          2. Marcel

            Simple: only power and the bell. It’s triggered via Home Assistant (1 doorbell downstairs and one on the attic)

          3. Arjen

            Thank you for the new doorbell and the encouraging message inside 🙂
            I used my brain this time and it works great, really happy with it.

            Thanks Marcel!

  2. Michaël Arnauts

    The two different headers for the wemos is an interesting idea (I assume so it is placed correctly). But the downside is that most people who already have a wemos won’t have the headers soldered on like this probably, so it’s not “easily” replaceable.

    I do love what you are doing however, just a thing that crossed my mind.

    1. Marcel

      Buying a new Wemos is quite cheap and therefore easily to replace. What if you have soldered male headers instead of female headers? Too many options, so I’ve chosen for this. It’s indeed to prevent for wrong placing of the Wemos 🙂

  3. Chiel

    Hi Marcel! Thanks for the quick delivery. Just installed the doorbell, very easy.. The Wemos led flashes blue once, and then nothing. I don’t see a network coming up. Do you know what the problem could be? I have a 24V AC bell travo. Let me know, thanks. Gr. Chiel

      1. Chiel

        Hi Marcel, could happen to anyone! No problem! Compiled my own and flashed it, it works exept for the portal indeed. Forgot to add it in the config as well. Thanks for your swift reply and help! Will flash it again with your new firmware. But it works already very nice in Home Assistant! Gr. Chiel

      2. Gerard Kappen

        Hi Marcel,

        I’m completely new to this and I’m a bit stuck. I seem to have the same problem, there’s no SSID coming online if I connect the ‘doorbell’. How can I get this .bin file onto my board? I connected it using USB and installed a driver for it. I tried installing `esphomeflasher` but can’t seem to get past installing the wspython requirement because it keeps complaining about needing VC 14.3 (which I installed)
        Is there an option to get it going using the ESPHome integration in Home Assistant?

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