Mizelum
Sensors

Every device, and everything they measure

A device is a board on the radio. Each thing it measures is a sensor of its own in Mizelum, with its own name, gauge and graph.

Type 0002Simulated
21.6°CTemperature

Climate sensor

Temperature and humidity of a room.

  • Temperature
  • Relative humidity
  • 2 sensors
Type 0003Simulated
21.6°CTemperature

Weather station

The weather outside: air, wind and rain.

  • Temperature
  • Relative humidity
  • Air pressure
  • Wind speed
  • Wind direction
  • Rain fallen
  • 6 sensors
Type 0004Simulated
612ppmCO2

Air monitor

What is in the air indoors, and how loud it is.

  • CO2
  • Fine dust (PM2.5)
  • Particulate matter
  • Air quality (VOC index)
  • Sound level
  • Temperature
  • Relative humidity
  • 7 sensors
Type 0005Simulated
ONSwitch

Energy meter

What a circuit draws, and whether it is switched on.

  • Switch
  • Voltage
  • Current
  • Power
  • Energy used
  • 5 sensors
Type 0006Simulated
1260mmWater level

Tank monitor

How full a tank is, and whether it is leaking.

  • Water level
  • Volume
  • Water leak
  • Temperature
  • 4 sensors
Type 0007Simulated
CLEARMotion

Room sensor

Motion, light, a door or window, and smoke.

  • Motion
  • Light
  • Contact
  • Smoke
  • 4 sensors
Type 0008Simulated
37.5%Soil moisture

Soil probe

How moist and how warm the soil is.

  • Soil moisture
  • Temperature
  • 2 sensors
Type 0009Simulated
640lxLight

Light sensor

Light, UV index and distance.

  • Light
  • UV index
  • Distance
  • 3 sensors
Type 000ASimulated
12.48kgWeight

Scale

The weight on it, and the temperature.

  • Weight
  • Temperature
  • 2 sensors
Type 0001Firmware written
1207Counter

Test sensor

The first sensor: a counter, to prove the radio link.

  • Counter
  • 1 sensor
Kinds of sensor

28 readings the protocol can carry

A report is a list of readings, each a tag byte and its value. The top two bits of the tag say how long the value is, so a receiver can skip a reading it does not know.

Readings

28 kinds
KindTagSent asCarried by
Temperature0x42i16, 0.01 °CClimate sensor, Weather station, Air monitor, Tank monitor, Soil probe, Scale
Relative humidity0x43u16, 0.01 %Climate sensor, Weather station, Air monitor
Air pressure0x48u16, 0.1 hPaWeather station
CO20x47u16, ppmAir monitor
Fine dust (PM2.5)0x54u16, 0.1 µg/m³Air monitor
Particulate matter0x5Bu16, 0.1 ppmAir monitor
Air quality (VOC index)0x58u16Air monitor
Sound level0x55u16, 0.1 dBAir monitor
Light0x86u32, luxRoom sensor, Light sensor
UV index0x56u16, 0.01Light sensor
Rain fallen0x50u16, 0.1 mmWeather station
Wind speed0x51u16, 0.01 m/sWeather station
Wind direction0x52u16, degreesWeather station
Soil moisture0x53u16, 0.01 %Soil probe
Water level0x4Fu16, mmTank monitor
Volume0x9Du32, 0.1 litreTank monitor
Water leak0x19u8, 0 dry, 1 wetTank monitor
Weight0x9Cu32, 0.01 kgScale
Distance0x57u16, mmLight sensor
Power0x89i32, 0.1 W; negative when exportingEnergy meter
Current0x4Au16, 0.01 AEnergy meter
Voltage0x4Bu16, 0.1 VEnergy meter
Energy used0x8Cu32, WhEnergy meter
Switch0x0Du8, 0 off, 1 onEnergy meter
Motion0x0Eu8, 0 clear, 1 motionRoom sensor
Contact0x05u8, 0 open, 1 closedRoom sensor
Smoke0x1Au8, 0 clear, 1 smokeRoom sensor
Counter0x84u32Test sensor

The supply voltage (0x41) is sent the same way but is not a sensor: it is the condition of the device, shown with each of its sensors.