The sensor clock is intended to be a general purpose clock/alarm clock, as well as a host to a number of environmental sensors, including CO2, Temperature, and Humidity sensors.
- Adafruit nRF52840 Express
- Adafruit 2.13 Tri-Color eInk Display
- Adafruit DS3231 RTC
- Sparkfun 7-Segment Serial Display
- Sensirion SCD30
- 2x Piezo Buzzers
- A few brick-mount boards
- Some LEGOs for a case
The parts communicate over I2C. The top and bottom boards are connected via QWIIC connectors.
The Seven Segment display rotates between:
- CO2 measurement
- Temperature measurement
- Humidity measurement
- Uptime measurement
The ePaper display will be used to show a graph of the last 3- or 48-hours of CO2 levels.
This is using two Half Proto Boards for the current prototype.
- Add notification LEDs
- Add Wireless for sensor readings
- Implement buzzers