Engineering a Battery Powered Wifi/BLE Smart Lock with custom PCBs


I wanted a smart door lock, so i tried to build it myself with an ESP8266 and a JDY23 Bluetooth LE Module.
My journey to meet my expectations was a lot longer than expected, but see for yourself.
This project was hard, but i learned a lot!

If you want do create your own PCBs, do it with JLCPCB!
JLCPCB offers 1-4 Layer PCBs for $2 – SMT Assembly fee $0 – Order from
Thanks for sponsoring to JLCPCB!

Want things to move faster here? Then consider supporting the ei23 project financially.

You want to support this project?

If you want to support this project, you can do it here:

Or as credit transfer (SEPA) – fees are a little bit lower there

Felix Grave
IBAN: DE81 1001 1001 2629 7060 89
Adress, if needet, you can find in the legal info.

All donators will receive a few extras by mail as a thank you! To benefit from this you can register here*
*The registration is not needed, but without registration there are no extras, but also a big thank you!

short message

If you would like to support us with time, knowledge and skills instead of money, that would be just as great!
Become part of the community, on Reddit, Discord or Telegram (see below).

If you order from Amazon from time to time, you can use my Amazon partner link
you can redirect a small advertising commission to me, you only have to click the link once before your purchase. That will not change prices.
This works the same way with AliExpress
You may save it to your bookmarks.

Thank you in advance!

Comments are closed.