Basic features

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Hardware

• 2 analog inputs: for the 0-5V and 0-33V range, for measuring voltage, direct current (additional sensors needed), temperature sensors, photoresistors - dusk sensor, pressure sensor and many others.
• Digital input in 1-Wire standard - measurement of up to 8 DS18B20 temperature probes.
• Digital input in I²C standard - for many different sensors or outputs extension.
• Serial bus (UART 3.3V).
• 2 logic inputs - as a status monitor (open/close door, PIR sensors, etc.), as button for manual switching.
• 1 relay (NO, C, NC).
• Measurement of supply voltage and temperature on the board.

Software

• Configuration via the website.
• Support for SMS commands and notifications.
• Changing the output state by making a call from an authorized number.
• Support for up to 100 numbers authorized for the call function.
• Support for HTTP (GET) and MQTT communication protocols.
• Calibration of sensors.
• Calculating the difference of readings from inputs.

List of currently supported sensors and devices

• Analog inputs (voltage measurement in the inputs range, others supported in firmware)
  • DC current sensors: ACS711EX_15, ACS711EX_30, ACS709_75, ACS711LC_12, ACS711LC_25, ACS711LC20, WCS1800, WCS6800, LA100P, R=0.1Ω, R=0.01Ω, R=0.05Ω
• Logical inputs (digital)
  • magnetic sensor of door opening, etc.
• 1-Wire bus
  • temperature sensor DS18B20
• I²C bus
  • humidity sensors: BME280 (humidity, temperature, atmospheric pressure)
  • particulate matter sensor SPS30 (PM1, PM2.5, PM4, PM10)
  • outputs extension OUT1-4 PCF8574
• Serial port
  • CO₂ sensors MH-Z16, MH-Z19
  • Ozone sensor GMQ125
• Modbus port (via an additional RS485 converter)
  • 2-way energy meters SDM120M and SDM72D-M (power, energy, voltage, current and other readings depending on the meter)
  • Danfos controller EKC 202C

Notes

- Options under development, new features might be added.