This version features an ALL IN ONE PCB of the LED clock project by @imeszaros. 

The PCB was specifically designed to be under 100mm so it will cost less to produce it. 

I would suggest to order a stencil as well, at least for the FRONT of the PCB (where the LEDs are), because otherwise is gonna be quite hard to hand solder all those LEDs.

UPDATE 15.12.2024 - several updates were made to the bottom layer:

• a new LDO with an enable pin was added to prevent reverse voltage flowing from the programming header into the LDO;
• made the footprint pads of the buzzer and the variable resistor a little bit longer so you can solder them by hand and also allowing you to use a cheaper variable resistor on the same footprint;
• retraced USB-C VCC line and made it a little bit beefier.

TOP LAYER (the one with LEDs) remains unchanged, so you can use the same stencil from the previous version (if you have one).

P.S.: You can also use WS2812B-2020 LEDs (as well as TCWIN TX1812ZN ), but keep in mind that you have to double check the pin orientation since the silkscreen marks doesn't match.

Software related stuff can be found in the @imeszaros gitHub repository, here : https://github.com/imeszaros/ledclock/blob/main/ledclock/users-guide.md

⚠️ Installer website provided also by @imeszaros can be found here : https://imeszaros.github.io/ledclock/

• You need to use a USB-to-TTL/UART converter for the initial flashing of the software. Alternatively, you can build this handy CH340C adapter with an auto-reset function: https://www.pcbway.com/project/shareproject/CH340C_with_Auto_Reset_104b447f.html.

• If you're using a standard USB-to-TTL/UART converter (such as the CH340 modules commonly found on AliExpress), make sure to supply +3.3V to the ESP via the VCC pin, cross the RX and TX connections, and use some tweezers (a paper clip or a piece of wire should work as well) to pull GPIO0 to GND before powering up the board.

STL files can be found here : https://www.printables.com/model/1087560-led-clock-all-in-one-pcb-powered-by-wled

Phone App  (WLED - Native ) can be found at the following links : Google Play [here] , Apple App Store [here].

If you’d like to say thanks, or buy me a coffee, a PayPal donation is always appreciated! ☺️