ESP32 based clock using LTP-305 led matrices.
- NTP time retrieval
- Brightness control
- esp-idf
- USB-C
WIP
WIP
WIP
Running esp-idf with esp32-wifi-manager 3.3.1 by tonyp7 for setting wifi credentials during runtime. Time set using sntp time example from esp-idf repository. Brightness control using button interrupts.
- Install esp-idf extension from Visual Studio Code marketplace
- Open LTP_clock folder from VSCode
- Select port, compile & flash.
| Component | Quantity | Description |
|---|---|---|
| ESP32-WROOM-32D | 1x | ESP32 |
| CP2102N-A02-GQFN24 | 1x | USB-UART |
| HT16K33 | 2x | LED driver |
| LDL1117 | 1x | Voltage regulator |
| SP0503BAHTG | 1x | ESD-protection |
| LTP-305 | 6x | 5x7 led matrix |
| PCA9306 | 1x | I2C level shifter |
| 5.2x5.2mm SMD pushbutton | 4x | Pushbutton |
| 14 Position DIP socket | 6x | |
| Resistors (WIP) | ||
| Capacitors (WIP) |