Raspberry Pi Clock using SPI Display Array
Display Array from Savage Electronics https://savageelectronics.com/spi-display-array-board-clock/
Code is based on the Raspberry Pi Pico version of Savage Electronics. Modified for Raspberry Pi and optimized.
- Removed Clock configuration: No need for clock configuration, use system time synchonized by NTP
- Dynamic theming (instead of compilation time): Button A cycle trought all themes
- Add 24h mode
- Large code simplifying
- (Optional) Weather informations from OpenWeatherMap
- Display time in 24h mode and weather forecast on display 6
- Button B switch display Time or one display per weather forecast day
When compiled without Weather, no QT dependency
mkdir build
cd build
cmake ..
make -j4
When compiled with Weather you need some QT dev package (qtbase5-dev)
- appID: Your own OpenWeatherMap appId
- location (lat + lon): OpenWeatherMap Lat/Lon location
mkdir build
cd build
cmake -DWITH_QWEATHER=ON -DOWAPPID="appID" -DOWLAT=48.8289 -DOWLON=2.2652 ..
make -j4
sudo is need to access GPIO:
sudo ./PiClock
If using the weather version with Qt without display, use the following command line:
sudo ./PiClock -platform offscreen
| Without Weather | With Weather |
|---|---|
| Display | PI | PIN |
|---|---|---|
| VDD | 3v3 | 1 |
| GND | Ground | 6 |
| BLK | GP15 | 10 |
| RST | GP25 | 22 |
| D/C | GP23 | 16 |
| SDI | SPIMOSI | 19 |
| SCK | SCLK | 23 |
| BTB | GP5 | 29 |
| BTD | ||
| CS1 | GP14 | 8 |
| CS2 | GP18 | 12 |
| CS3 | GP22 | 15 |
| CS4 | GP27 | 13 |
| CS5 | GP17 | 11 |
| CS6 | GP4 | 7 |
| GND | Ground | 20 |
| BTA | GP24 | 18 |
| BTC |