Combination of an air monitor and a clock:
- Air monitor shows a VOC index, humidity and temperature values.
- The clock uses a DCF77 module to receive the current time from Frankfurt, when the device is started.
A LED is used to show the DCF77 communication at start (display is turned off until the time was received, the signal will be disturbed by I2C bus).
A switch is used to toggle the display view.
- VOC index from Sensirion
- Relative humidity [%]
- Temperature [°C]
- Time [hh:mm:ss]
- Week day
- Date [dd.mm.yyyy]
- Sensirion SGP40 sensor
- Bosch BME280 sensor
- DS3231 RTC modul
- 1.3 inch OLED modul
- Arduino Nano
- DCF77 module