Crops

31.05.2026 09:53:48

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.
775.2 W . m-2 B1 B2 B2 M1 18.4 °C 51.62 % 18.3 °C 45.18 % M2 17.9 °C 46.7 % 18.3 °C 45.18 % M3 0 °C 0 % 18.3 °C 45.18 % M4 19.8 °C 50.72 % 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 21.3 °C 42.56 % 18.8 °C 26.38 % 18.8 °C 26.38 % J1 18.3 °C 19.26 %

Malina1

Temperature 18.4 °C
Humidity 51.62 %
Nko 36 mg/kg
Pko 131 mg/kg
Kko 124 mg/kg
Vodivost 361 mS/m
pH 3.06
Salinity 198 mS/m
TDS 180
Illuminance 4095 lx
Battery voltage 4.2 V
Panel voltage 4.21 V
Battery capacity 100 %
RSSI -54 dBm

Malina2

Temperature 17.9 °C
Humidity 46.7 %
Nko 25 mg/kg
Pko 104 mg/kg
Kko 97 mg/kg
Vodivost 305.2 mS/m
pH 3.48
Salinity 167.2 mS/m
TDS 152.2
Illuminance 4086 lx
Battery voltage 4.2 V
Panel voltage 7 V
Battery capacity 100 %
RSSI -51 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 19.8 °C
Humidity 50.72 %
Nko 36 mg/kg
Pko 130 mg/kg
Kko 123 mg/kg
Vodivost 359 mS/m
pH 3.36
Salinity 197 mS/m
TDS 179
Illuminance 4095 lx
Battery voltage 4.2 V
Panel voltage 6.49 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 21.3 °C
Humidity 42.56 %
Nko 9 mg/kg
Pko 67 mg/kg
Kko 59 mg/kg
Vodivost 228 mS/m
pH 3
Salinity 125 mS/m
TDS 114
Illuminance 1893 lx
Battery voltage 3 V
Panel voltage 2.27 V
Battery capacity 0 %
RSSI -51 dBm

Boruvka1

Temperature 18.3 °C
Humidity 45.18 %
Nko 1 mg/kg
Pko 35 mg/kg
Kko 28 mg/kg
Vodivost 163 mS/m
pH 3
Salinity 89 mS/m
TDS 81
Illuminance 4095 lx
Battery voltage 4.2 V
Panel voltage 7.38 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 18.3 °C
Humidity 19.26 %
Nko 1 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 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -59 dBm