CO2-Ampel
The CO2-Ampel is a traffic light to show the carbon dioxide concentration in a room for ventilation.
Features
- Microchip ATSAMD21 ARM Cortex-M0+ Microcontroller
- Sensirion SCD30 Sensor (CO2, humidity, temperature) with NDIR sensor technology
- 0 to 10000ppm CO2 concentration
- 0 to 100% relative humidity
- -40 to +70°C temperature
- Intelligent WS2812 RGB-LEDs
- Acoustic Buzzer
- Light Sensor
- Qwiic compatible I2C connector (3.3V)
- USB CDC+MSC Bootloader (Arduino compatible)
- USB-C connector for power and data/programming
- <0.5W at 70% brightness and without WiFi/LoRa
- <0.15W at 10% brightness and without WiFi/LoRa
- Plus Version:
- Microchip ATWINC1500B WiFi/WLAN Network Controller
- Microchip ATECC608 Cryptographic Co-Processor
- Pro Version:
- Air Pressure Sensor
- Microchip ATWINC1500B WiFi/WLAN Network Controller (optional)
- Microchip ATECC608 Cryptographic Co-Processor (optional)
- HopeRF RFM95W/RFM96W LoRa Transceiver (optional)
Shop
Documents
- Schematics / Layout (GitHub)
- Arduino: CO2-Ampel Boards Package (installation like here)
- WiFi-Firmware with MQTT by Mario Lukas
- Monitoring-System (Docker Container) by Mario Lukas