📘 I2C Sensors: Inter-Integrated Circuit (I2C) is a communication protocol that allows multiple sensors to connect using just two wires (SDA and SCL). These sensors are perfect for temperature, humidity, pressure, light, motion, and environmental monitoring. Select one sensor from the list above and click "Add Sensor" to include it in your system. You can add up to 2 optional sensors total (I2C + UART or I2C + ADC or UART + ADC).
➕ ADD NEW I2C SENSOR: Don't see your sensor in the list? Click the green "ADD NEW I2C SENSOR" button to manually add any I2C sensor by entering its name, measurement type, and unit. This allows you to add custom or unlisted I2C sensors to your MultiSense Air system.
📘 UART Sensors: Universal Asynchronous Receiver-Transmitter (UART) is a serial communication protocol used by GPS modules, GSM/cellular modems, RFID readers, fingerprint scanners, and LiDAR units. UART uses TX (transmit) and RX (receive) pins for communication. These sensors are ideal for location tracking, wireless communication, identification, and distance measurement. Select one sensor and click "Add Sensor" to include it. Maximum 2 optional sensors total.
➕ ADD NEW UART SENSOR: Don't see your sensor in the list? Click the green "ADD NEW UART SENSOR" button to manually add any UART sensor by entering its name, measurement type, and unit. Perfect for custom serial sensors, proprietary modules, or newly released UART devices.
📘 ADC Sensors: Analog-to-Digital Converter (ADC) sensors convert analog voltage signals (0-5V or 0-3.3V) into digital values that the ESP32 can read. These include gas sensors (DFRobot electrochemical and MQ series) for detecting CO, CO₂, NH₃, H₂S, O₃, VOCs, and other gases, plus water quality sensors for pH, TDS, EC, ORP, dissolved oxygen, and turbidity measurement. Select one sensor and click "Add Sensor". Maximum 2 optional sensors total across all types.
➕ ADD NEW ADC SENSOR: Don't see your sensor in the list? Click the green "ADD NEW ADC SENSOR" button to manually add any analog sensor by entering its name, measurement type, and unit. Ideal for custom gas sensors, water quality probes, soil sensors, or any analog voltage output sensor.
Sensor Calibration
SGP30 Calibration
The SGP30 requires a 12-hour burn-in period for optimal accuracy.
SCD40 Calibration
Force calibration at 400 ppm CO2 (outdoor air).
⚠️ Only calibrate in fresh outdoor air (400 ppm CO2)
SHT40 Calibration
Soft reset and heater test for SHT40 sensor.
Factory Reset
⚠️ This will reset all sensors to factory defaults!