Crops

16.10.2025 03:46:24

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 11.3 °C 31.02 % 11.2 °C 50.06 % M2 11.02 °C 33.7 % 11.2 °C 50.06 % M3 31.9 °C 38.74 % 11.2 °C 50.06 % M4 11.94 °C 39.76 % 11.86 °C 37.04 % 11.86 °C 37.04 % M5 10.1 °C 28.06 % 11.86 °C 37.04 % 11.86 °C 37.04 % M6 18.1 °C 40.34 % 11.86 °C 37.04 % 11.86 °C 37.04 % J1 14.22 °C 40.52 %

Malina1

Temperature 11.3 °C
Humidity 31.02 %
Nko 1 mg/kg
Pko 40 mg/kg
Kko 32 mg/kg
Vodivost 173 mS/m
pH 3
Salinity 95 mS/m
TDS 86
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -59 dBm

Malina2

Temperature 11.02 °C
Humidity 33.7 %
Nko 0 mg/kg
Pko 20 mg/kg
Kko 12 mg/kg
Vodivost 131 mS/m
pH 3
Salinity 72 mS/m
TDS 65
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -59 dBm

Malina3

Temperature 31.9 °C
Humidity 38.74 %
Nko 1 mg/kg
Pko 45 mg/kg
Kko 38 mg/kg
Vodivost 184 mS/m
pH 3
Salinity 101 mS/m
TDS 92
Illuminance 1717 lx
Battery voltage 3.78 V
Panel voltage 0 V
Battery capacity 65 %
RSSI -61 dBm

Malina4

Temperature 11.94 °C
Humidity 39.76 %
Nko 0 mg/kg
Pko 34 mg/kg
Kko 27 mg/kg
Vodivost 161 mS/m
pH 3
Salinity 88 mS/m
TDS 80
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -74 dBm

Malina5

Temperature 10.1 °C
Humidity 28.06 %
Nko 6 mg/kg
Pko 59 mg/kg
Kko 52 mg/kg
Vodivost 212 mS/m
pH 3.3
Salinity 117 mS/m
TDS 106
Illuminance 0 lx
Battery voltage 3.31 V
Panel voltage 0 V
Battery capacity 26 %
RSSI -60 dBm

Malina6

Temperature 18.1 °C
Humidity 40.34 %
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 2032 lx
Battery voltage 3 V
Panel voltage 3.41 V
Battery capacity 0 %
RSSI -61 dBm

Boruvka1

Temperature 11.2 °C
Humidity 50.06 %
Nko 0 mg/kg
Pko 8 mg/kg
Kko 1 mg/kg
Vodivost 106 mS/m
pH 3
Salinity 58 mS/m
TDS 53
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -51 dBm

Boruvka2

Temperature 11.86 °C
Humidity 37.04 %
Nko 0 mg/kg
Pko 0 mg/kg
Kko 0 mg/kg
Vodivost 60 mS/m
pH 3
Salinity 33 mS/m
TDS 30
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -55 dBm

Jablone1

Temperature 14.22 °C
Humidity 40.52 %
Nko 10 mg/kg
Pko 71 mg/kg
Kko 63 mg/kg
Vodivost 236 mS/m
pH 3.22
Salinity 129 mS/m
TDS 118
Illuminance 0 lx
Battery voltage 4.03 V
Panel voltage 0 V
Battery capacity 85 %
RSSI -69 dBm