Crops

22.07.2025 17:04:09

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.
376.6 W . m-2 B1 B2 B2 M1 19.6 °C 38.66 % 20.6 °C 40.3 % M2 19.2 °C 32.3 % 20.6 °C 40.3 % M3 19.6 °C 35.6 % 20.6 °C 40.3 % M4 19.8 °C 34.56 % 23.26 °C 28.48 % 23.26 °C 28.48 % M5 19.3 °C 19.32 % 23.26 °C 28.48 % 23.26 °C 28.48 % M6 19.62 °C 30.98 % 23.26 °C 28.48 % 23.26 °C 28.48 % J1 18.64 °C 26.9 %

Malina1

Temperature 19.6 °C
Humidity 38.66 %
Nko 21 mg/kg
Pko 96 mg/kg
Kko 88.8 mg/kg
Vodivost 288.8 mS/m
pH 3.06
Salinity 158 mS/m
TDS 144
Illuminance 3702 lx
Battery voltage 4.2 V
Panel voltage 6.38 V
Battery capacity 100 %
RSSI -61 dBm

Malina2

Temperature 19.2 °C
Humidity 32.3 %
Nko 1 mg/kg
Pko 31 mg/kg
Kko 23 mg/kg
Vodivost 153 mS/m
pH 3.06
Salinity 84 mS/m
TDS 76
Illuminance 3892 lx
Battery voltage 4.2 V
Panel voltage 4.44 V
Battery capacity 100 %
RSSI -63 dBm

Malina3

Temperature 19.6 °C
Humidity 35.6 %
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 3902 lx
Battery voltage 3.74 V
Panel voltage 3.78 V
Battery capacity 61 %
RSSI -70 dBm

Malina4

Temperature 19.8 °C
Humidity 34.56 %
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 4048 lx
Battery voltage 4.2 V
Panel voltage 6 V
Battery capacity 100 %
RSSI -67 dBm

Malina5

Temperature 19.3 °C
Humidity 19.32 %
Nko 4 mg/kg
Pko 57 mg/kg
Kko 49 mg/kg
Vodivost 208 mS/m
pH 3.16
Salinity 114 mS/m
TDS 104
Illuminance 3644 lx
Battery voltage 4.2 V
Panel voltage 4.43 V
Battery capacity 100 %
RSSI -51 dBm

Malina6

Temperature 19.62 °C
Humidity 30.98 %
Nko 1 mg/kg
Pko 46.2 mg/kg
Kko 39 mg/kg
Vodivost 186.2 mS/m
pH 3
Salinity 102 mS/m
TDS 93
Illuminance 3212 lx
Battery voltage 4.16 V
Panel voltage 3.99 V
Battery capacity 96 %
RSSI -80 dBm

Boruvka1

Temperature 20.6 °C
Humidity 40.3 %
Nko 4864 mg/kg
Pko 29 mg/kg
Kko 21 mg/kg
Vodivost 150 mS/m
pH 3
Salinity 82 mS/m
TDS 75
Illuminance 4095 lx
Battery voltage 4.2 V
Panel voltage 4.18 V
Battery capacity 100 %
RSSI -71 dBm

Boruvka2

Temperature 23.26 °C
Humidity 28.48 %
Nko 10.6 mg/kg
Pko 39 mg/kg
Kko 31 mg/kg
Vodivost 171 mS/m
pH 3
Salinity 94 mS/m
TDS 85
Illuminance 4095 lx
Battery voltage 4.2 V
Panel voltage 4.24 V
Battery capacity 100 %
RSSI -61 dBm

Jablone1

Temperature 18.64 °C
Humidity 26.9 %
Nko 1 mg/kg
Pko 39 mg/kg
Kko 31 mg/kg
Vodivost 170 mS/m
pH 3
Salinity 93 mS/m
TDS 85
Illuminance 3842 lx
Battery voltage 4.2 V
Panel voltage 4.6 V
Battery capacity 100 %
RSSI -64 dBm