This page lists all parts and materials required to build the clock.
To be able to print the base of the enclosure, a printer with a large build volume is required, since its ~40 cm wide. All other parts can be printed on a regular sized printers.
You need at least two kinds of material, an opaque and a translucent one. See the tables on this page for the details and required amounts.
First of all, you need the PCBs. Making them yourself could be quite a challenge since tha main board is a double sided design and the other two boards have a non-square outline which can be best CNC-milled or hand made with a router. Therefore I would recommend ordering them form a prototyping PCB service. I had them made at JLC PCB and the quality they arrived in is very convincing. Check out the designs and gerber files.
The following table shows the required components. The datasheets show the exact pieces I used in my design and realization.
| Part/Material | Quantity | Notes |
|---|---|---|
| Power supply | 1 | 5V DC regulated, with at least 3000 mA output current rating. Smaller one could be used with firmware modification. Inner contact of the plug is the positive. |
| Power connector | 1 | Obviously has to match the PSU plug. |
| WS2812b LED chip | 58 | |
| Piezo buzzer | 1 | A passive buzzer is necessary. |
| Electrolytic capacitor 470u | 1 | |
| Trimmer potentiometer 47k | 1 | With linear scale. |
| BSS138 N-mosfet | 1 | |
| MMBT2222A transistor | 2 | |
| AMS1117 voltage 3.3V voltage regulator | 1 | |
| Micro USB connector | 1 | |
| Ceramic capacitor 10u, 10V, 0805 | 3 | |
| Ceramic capacitor 1u, 16V, 0603 | 2 | |
| Ceramic capacitor 100n, 50V, 0603 | 58 | |
| Resistor 100R, 5%, 0603 | 1 | |
| Resistor 1k, 5%, 0603 | 1 | |
| Resistor 10k, 5%, 0603 | 5 | |
| Resistor 22.1k, 1%, 0603 | 1 | |
| Resistor 47.5k, 1%, 0603 | 1 | |
| TEPT5700 ambient light sensor | 1 | See the application notes. |
| ESP32-WROOM-32E 4MB | 1 | See the pinout. |
| CP2102N USB->UART interface | 1 | |
| 4-pin wire to board connector male 90deg. with 2mm raster | 5 | Either SMD or THT, depending the PCB you choose. |
| 4-pin wire to board connector female with 2mm raster | 5 | |
| 4-pin wire to board connector pin | 20 | |
| 0.22 mm2 stranded wire | 58 | 4 distinct colors; quantity is in cm and is for each color separately. |
| M3 threaded inserts | 6 | |
| M3 6mm screws | 6 | |
| Self-adhesive plastic legs | 8 |
