Crops

24.07.2026 16:33:16

The goal is to create an IoT device for monitoring soil properties and early correction of unsuitable parameters for its growth. We assume the possibility to dose watering and dosing of fertilizers based on information from the sensor.
Soil foto
Soil sonda
Soil foto
The measurement system is built on the basis of a five-electrode sensor of soil properties, which is connected to the ESP processor via the RS485 bus. The measuring system is powered by a photovoltaic panel and the accumulator is charged for device operation. Data is sent via WiFi to the database. The sensor measures temperature, humidity, content of nitrogen, phosphorus and potassium components, soil conductivity, pH, salinity, as a supplement for IoT devices it also sends battery voltage, PV panel voltage, battery capacity and WiFi signal.
610.6 W . m-2 B1 B2 B2 M1 18.3 °C 38.04 % 19.44 °C 37.48 % M2 17.78 °C 35.18 % 19.44 °C 37.48 % M3 0 °C 0 % 19.44 °C 37.48 % M4 18.94 °C 27.26 % 18.8 °C 26.38 % 18.8 °C 26.38 % M5 13.9 °C 35.86 % 18.8 °C 26.38 % 18.8 °C 26.38 % M6 19.2 °C 39.46 % 18.8 °C 26.38 % 18.8 °C 26.38 % J1 19.3 °C 18.94 %

Malina1

Temperature 18.3 °C
Humidity 38.04 %
Nko 6 mg/kg
Pko 61 mg/kg
Kko 53.4 mg/kg
Vodivost 216.4 mS/m
pH 3
Salinity 118.4 mS/m
TDS 108
Illuminance 4095 lx
Battery voltage 4.2 V
Panel voltage 4.27 V
Battery capacity 100 %
RSSI -55 dBm

Malina2

Temperature 17.78 °C
Humidity 35.18 %
Nko 2 mg/kg
Pko 50 mg/kg
Kko 43 mg/kg
Vodivost 194 mS/m
pH 3.36
Salinity 106 mS/m
TDS 97
Illuminance 4089 lx
Battery voltage 4.2 V
Panel voltage 6.85 V
Battery capacity 100 %
RSSI -59 dBm

Malina3

Temperature 0 °C
Humidity 0 %
Nko 0 mg/kg
Pko 0 mg/kg
Kko 0 mg/kg
Vodivost 0 mS/m
pH 0
Salinity 0 mS/m
TDS 0
Illuminance 4091 lx
Battery voltage 4.2 V
Panel voltage 4.34 V
Battery capacity 100 %
RSSI -55 dBm

Malina4

Temperature 18.94 °C
Humidity 27.26 %
Nko 2 mg/kg
Pko 50 mg/kg
Kko 43 mg/kg
Vodivost 194 mS/m
pH 3.3
Salinity 106 mS/m
TDS 97
Illuminance 3934 lx
Battery voltage 4.2 V
Panel voltage 6.21 V
Battery capacity 100 %
RSSI -62 dBm

Malina5

Temperature 13.9 °C
Humidity 35.86 %
Nko 18 mg/kg
Pko 87 mg/kg
Kko 80 mg/kg
Vodivost 271 mS/m
pH 3.32
Salinity 149 mS/m
TDS 135
Illuminance 3194 lx
Battery voltage 4.19 V
Panel voltage 4.04 V
Battery capacity 98 %
RSSI -50 dBm

Malina6

Temperature 19.2 °C
Humidity 39.46 %
Nko 12 mg/kg
Pko 74 mg/kg
Kko 66 mg/kg
Vodivost 243 mS/m
pH 3
Salinity 133 mS/m
TDS 121
Illuminance 4095 lx
Battery voltage 4.2 V
Panel voltage 4.19 V
Battery capacity 100 %
RSSI -47 dBm

Boruvka1

Temperature 19.44 °C
Humidity 37.48 %
Nko 1 mg/kg
Pko 34 mg/kg
Kko 27 mg/kg
Vodivost 161 mS/m
pH 3
Salinity 88 mS/m
TDS 80
Illuminance 4095 lx
Battery voltage 4.2 V
Panel voltage 4.16 V
Battery capacity 100 %
RSSI -59 dBm

Boruvka2

Temperature 18.8 °C
Humidity 26.38 %
Nko 0 mg/kg
Pko 7 mg/kg
Kko 1 mg/kg
Vodivost 104 mS/m
pH 3.06
Salinity 57 mS/m
TDS 52
Illuminance 4095 lx
Battery voltage 3.9 V
Panel voltage 7.01 V
Battery capacity 75 %
RSSI -63 dBm

Jablone1

Temperature 19.3 °C
Humidity 18.94 %
Nko 1 mg/kg
Pko 1 mg/kg
Kko 1 mg/kg
Vodivost 59.2 mS/m
pH 3.12
Salinity 32.2 mS/m
TDS 29.2
Illuminance 4095 lx
Battery voltage 3.86 V
Panel voltage 0 V
Battery capacity 71 %
RSSI -62 dBm