Crops

25.06.2026 00:19:32

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 21.52 °C 44.62 % 23.96 °C 39.3 % M2 21.72 °C 38.3 % 23.96 °C 39.3 % M3 0 °C 0 % 23.96 °C 39.3 % M4 22.6 °C 36.5 % 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 21.5 °C 40.6 % 18.8 °C 26.38 % 18.8 °C 26.38 % J1 23.4 °C 19.1 %

Malina1

Temperature 21.52 °C
Humidity 44.62 %
Nko 30 mg/kg
Pko 115 mg/kg
Kko 108 mg/kg
Vodivost 329 mS/m
pH 3.36
Salinity 180 mS/m
TDS 164
Illuminance 31 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -54 dBm

Malina2

Temperature 21.72 °C
Humidity 38.3 %
Nko 11 mg/kg
Pko 72 mg/kg
Kko 64 mg/kg
Vodivost 238.4 mS/m
pH 3.48
Salinity 130.4 mS/m
TDS 119
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -58 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 22.6 °C
Humidity 36.5 %
Nko 26 mg/kg
Pko 106 mg/kg
Kko 99 mg/kg
Vodivost 310 mS/m
pH 3.48
Salinity 170 mS/m
TDS 155
Illuminance 0 lx
Battery voltage 4.2 V
Panel voltage 0 V
Battery capacity 100 %
RSSI -67 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 21.5 °C
Humidity 40.6 %
Nko 20 mg/kg
Pko 92 mg/kg
Kko 84 mg/kg
Vodivost 280 mS/m
pH 3
Salinity 154 mS/m
TDS 140
Illuminance 847 lx
Battery voltage 3 V
Panel voltage 2.11 V
Battery capacity 0 %
RSSI -52 dBm

Boruvka1

Temperature 23.96 °C
Humidity 39.3 %
Nko 1 mg/kg
Pko 42 mg/kg
Kko 34 mg/kg
Vodivost 176 mS/m
pH 3
Salinity 96 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 23.4 °C
Humidity 19.1 %
Nko 1 mg/kg
Pko 11 mg/kg
Kko 3 mg/kg
Vodivost 112 mS/m
pH 3.06
Salinity 61 mS/m
TDS 56
Illuminance 0 lx
Battery voltage 3.9 V
Panel voltage 0 V
Battery capacity 74 %
RSSI -67 dBm