Crops

14.08.2026 02:56:08

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 18.44 °C 37.84 % 18.3 °C 40.1 % M2 19.3 °C 28.34 % 18.3 °C 40.1 % M3 0 °C 0 % 18.3 °C 40.1 % M4 19.5 °C 23.18 % 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 20.4 °C 29.66 % 18.8 °C 26.38 % 18.8 °C 26.38 % J1 20.42 °C 15.98 %

Malina1

Temperature 18.44 °C
Humidity 37.84 %
Nko 11 mg/kg
Pko 72 mg/kg
Kko 64 mg/kg
Vodivost 238.4 mS/m
pH 3.36
Salinity 130.4 mS/m
TDS 119
Illuminance 149 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -54 dBm

Malina2

Temperature 19.3 °C
Humidity 28.34 %
Nko 1 mg/kg
Pko 42 mg/kg
Kko 34 mg/kg
Vodivost 177 mS/m
pH 3.3
Salinity 97 mS/m
TDS 88
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 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 19.5 °C
Humidity 23.18 %
Nko 1 mg/kg
Pko 31 mg/kg
Kko 23 mg/kg
Vodivost 153 mS/m
pH 3.18
Salinity 84 mS/m
TDS 76
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -71 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 20.4 °C
Humidity 29.66 %
Nko 1 mg/kg
Pko 44 mg/kg
Kko 36 mg/kg
Vodivost 180 mS/m
pH 3
Salinity 99 mS/m
TDS 90
Illuminance 0 lx
Battery voltage 4.13 V
Panel voltage 3.05 V
Battery capacity 93 %
RSSI -46 dBm

Boruvka1

Temperature 18.3 °C
Humidity 40.1 %
Nko 1 mg/kg
Pko 42 mg/kg
Kko 34 mg/kg
Vodivost 177 mS/m
pH 3
Salinity 97 mS/m
TDS 88
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 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 20.42 °C
Humidity 15.98 %
Nko 0 mg/kg
Pko 0 mg/kg
Kko 0 mg/kg
Vodivost 25 mS/m
pH 3
Salinity 13 mS/m
TDS 12
Illuminance 4000 lx
Battery voltage 3.97 V
Panel voltage 0 V
Battery capacity 80 %
RSSI -64 dBm