AQIL is an ESP32-C6 (2.4GHz), based SX1262 LoRa Air Quality Monitor IoT Weather Station
High Precision Digital Environmental Monitor Sensors, for local or remote monitoring.
New STEM Board for March 2026The board has TWO Variants
- AQIX SCD4o
- AQIX SCD41
https://github.com/DitroniX/AQIL-ESP32-C6-SX1262-LoRa-Air-Quality-Monitor-IoT-Weather-Station
High Precision Digital Environmental Monitor Sensors.
The AQIL board offers the following main features:
- Espressif ESP32-C6WiFi, Bluetooth, Zigbee and Thread
- EByte E22-900MM22SLoRa (LoRaWAN), SX1262 module for 850 MHz through to 930 MHz
- Sensirion SCD40 or SCD41 High Accuracy CO2 Sensor
SCD40 - 400 to 2000 ppm, Accuracy ±50.0 ppm ±5.0 %m.v (Home)
SCD41 - 400 to 5000 ppm, Accuracy ±50.0 ppm ±2.5 %m.v (Home, Office, Industry)
- High Precision Barometric Pressure, Relative Humidity and Temperature
**Barometric Pressure** 300...1100 hPa (millibar)
- Accuracy ±0.25%
- which is equivalent to 1m at 400m height change
- RMS Noise 0.2 Pa
- which is equivalent to 1.7 cm
- **Temperature** -40 to 85°C
- Temperature coefficient offset ±1.5Pa/K.
- which is equivalent to ±12.6cm at 1 °C temperature change
- **Humidity**
- 0 to 100 %
- Accuracy tolerance ±3% relative humidity
- Hysteresis ≤2% relative humidity
- SFH2440, providing spectral sensitivity adapted to human eye sensitivity
- Std. Light A; T = 2856 K Minimum 7 nA/lx
- Spectral range of sensitivity λ10% typically 400 to 690 nm
- Wavelength of max sensitivity λS max typically 620 nm
- ESP32-C6 ADC provides light voltage reading
- 64Kbit storage
- AT24C64 64Kbit
- On-board Data Logging
- On-board Parameters
- Firmware setup user parameters and configuration
- With UART for easy programming and development
- Board powering during development or use.
- Type C USB Connector
- CH340K USB UART 2Mbps Transceiver
- Easy programming. Select ‘ESP32C3 Dev Module’
- BAUD rate up to 921600 to speed up Flashing
- Serial Monitoring Debug and Remote Logging
- Power Can Be Taken from USB 5V (when Flashing).
- External Relay or Sounder.
- GPIO or PWM
- External Sensors such as Soil Temperature Probe (DS18S20)
- Dallas OneWire Interface for External Temperatures
- OLED Display
- PCB 4 Pin Header Connector
- External Sensors such as Soil Monitoring
- PCB 4 Pin Header Connector
- Reset
- User (Program or GP9 Detect)
- ESP32-C6 ADC provides battery voltage reading
- AMS1117 LDO allowing use of external DC input 4.5V to 15V
- RGB, Ext DC LED
- Board Size63 x 51mm
- 4 x M3 mounting holes
- Operating Ambient Temperature -10 to +60 °
- Optional Conformal Coating – on request.
- Designed to fit into a Waterproof Clear Cover Enclosure
Power can be via external 5 to 15V DC, or using a CR123A 3V Lithium battery. CR123A Battery is not a rechargeable.
This board could also be powered from a Solar Panel.
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