ESP32 Based OpenSource Smart Doorbell System  - Page 1
Forum section: electronics / general

author: sydundar
author_rank: Contributor
timestamp: May 02, 2025, 08:37:53 am
content: I'm proud to introduce my project, which consists of three ESP32 modules! 😊For more details, please visit my page onESP32 SMartDoorbellYour support would be greatly appreciated!

author: dobsonr741
author_rank: Frequent Contributor
timestamp: May 03, 2025, 07:33:37 pm
content: Surprised by complementing ESP32 with another wireless link: “For a more reliable doorbell chime, you can alternatively use the built-in 433 MHz wireless”What was not working well with ESP32?

author: sydundar
author_rank: Contributor
timestamp: May 03, 2025, 07:47:07 pm
content: Good Question.If home wireles modem stucked or closed doorbell button can not send button press data. Tht is why some prefer wired connection or 433MHz TX

author: nctnico
author_rank: Super Contributor
timestamp: May 04, 2025, 12:56:38 am
content: Quote from: sydundar on May 03, 2025, 07:47:07 pmWhich is why you repeat status messages and go into a safe state in case those messages no longer arrive.I'm also wondering if this system makes it through an EMC / CE test. Especially ESD and radiated immunity up to 10V/m. I know the limit for consumer is lower but for reliable operation, you better test up 10V/m with and without AM modulation. And radiated emissions may also throw a curve ball. I see some non-grounded modules and those can be troublesome.

author: PlainName
author_rank: Super Contributor
timestamp: May 04, 2025, 07:40:21 pm
content: Looks interesting! Any idea of price?Having created my own doorbell system (ESP32-based, of course) because I am deaf and none of the existing solutions worked for me, could I make the following suggestions:* Allow for more than one front end (that is, the bellpush). Front door, back door, gate on the drive, etc.* Make available (or have an API for someone else to make available) a PC app that sits in the background and pops up (and flashes so it's hard to miss) when the doorbell is pressed. For your system a video image (or even still) would be great, but just the notification would be good.* Allow for more than one smart chime and display.With multiple sources the displays/chimes/apps would need to show which was the trigger. For instance, with mine the PC app and remote flashers (which are small boxes with a BIG light dome that flashes) have configurable colours depending on source. The PC app, of course, also says which source it was: "Front door", "Office", etc.Also, with multiple receivers, it's useful for the receiver to be able to tell the system that the visitor is being dealt with. Without any response, the entire thing times out after 30 seconds assuming that there is no-one around, but that's quite a while for the apps and flashers and sounders to be doing their thing, and someone on the loo might be rushing to, er, finish while whoever was in the kitchen has actually already dealt with the visitor. So the responder can press a button on the flashers, or click on the app, and that signals all the other devices that someone is responding, thus relieving (sorry!) the person on the loo from rushing for no reason.And... since it's all network based, the receivers periodically poll the bellpushes to verify that they are alive (and/or the network is networking). If anything drops out then the users are notified via a very low-level indication of the issue.

author: Haenk
author_rank: Super Contributor
timestamp: May 05, 2025, 01:12:56 pm
content: Storing camera pictures is likely prohibited in all european countries, without conset. Live picture is already troublesome (A warning sign should be sufficient...), but storing really is really on another data protection level.One tidbit I'm interested in: IP rating? We have a lot of moisture here in coastal Germany, the enclosure does not seem to be sealed? And how about UV stability of plastics? And will that display survive like -20oC outdoor temperatures?