Crops

03.09.2026 06:09:32

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.
0 W . m-2 B1 B2 B2 M1 17.2 °C 34.48 % 16.88 °C 32.82 % M2 18.3 °C 44.1 % 16.88 °C 32.82 % M3 0 °C 0 % 16.88 °C 32.82 % M4 18 °C 25.86 % 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 18.1 °C 31.36 % 18.8 °C 26.38 % 18.8 °C 26.38 % J1 17.66 °C 22.38 %

Malina1

Temperature 17.2 °C
Humidity 34.48 %
Nko 2 mg/kg
Pko 51 mg/kg
Kko 43 mg/kg
Vodivost 195 mS/m
pH 3
Salinity 107 mS/m
TDS 97
Illuminance 2038 lx
Battery voltage 4.2 V
Panel voltage 1.37 V
Battery capacity 100 %
RSSI -54 dBm

Malina2

Temperature 18.3 °C
Humidity 44.1 %
Nko 25 mg/kg
Pko 105 mg/kg
Kko 98 mg/kg
Vodivost 308 mS/m
pH 3.3
Salinity 169 mS/m
TDS 154
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -54 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 °C
Humidity 25.86 %
Nko 1 mg/kg
Pko 45 mg/kg
Kko 37 mg/kg
Vodivost 183 mS/m
pH 3.24
Salinity 100 mS/m
TDS 91
Illuminance 2519 lx
Battery voltage 4.2 V
Panel voltage 2.71 V
Battery capacity 100 %
RSSI -65 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 18.1 °C
Humidity 31.36 %
Nko 1 mg/kg
Pko 46 mg/kg
Kko 39 mg/kg
Vodivost 186 mS/m
pH 3
Salinity 102 mS/m
TDS 93
Illuminance 2630 lx
Battery voltage 4.02 V
Panel voltage 2.72 V
Battery capacity 84 %
RSSI -49 dBm

Boruvka1

Temperature 16.88 °C
Humidity 32.82 %
Nko 3 mg/kg
Pko 22 mg/kg
Kko 14 mg/kg
Vodivost 135 mS/m
pH 3
Salinity 74 mS/m
TDS 67
Illuminance 2476 lx
Battery voltage 4.2 V
Panel voltage 2.71 V
Battery capacity 100 %
RSSI -62 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 17.66 °C
Humidity 22.38 %
Nko 1 mg/kg
Pko 24 mg/kg
Kko 16 mg/kg
Vodivost 139 mS/m
pH 3.54
Salinity 76 mS/m
TDS 69
Illuminance 237 lx
Battery voltage 4.03 V
Panel voltage 0 V
Battery capacity 85 %
RSSI -64 dBm