Crops
24.07.2026 17:32:17
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.
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.
Malina1
| Temperature | 18.4 °C |
|---|---|
| Humidity | 37.16 % |
| Nko | 6 mg/kg |
| Pko | 60 mg/kg |
| Kko | 53 mg/kg |
| Vodivost | 215 mS/m |
| pH | 3 |
| Salinity | 118 mS/m |
| TDS | 107 |
| Illuminance | 4091 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.31 V |
| Battery capacity | 100 % |
| RSSI | -55 dBm |
Malina2
| Temperature | 17.94 °C |
|---|---|
| Humidity | 34.56 % |
| Nko | 2 mg/kg |
| Pko | 50.6 mg/kg |
| Kko | 43 mg/kg |
| Vodivost | 194.6 mS/m |
| pH | 3.36 |
| Salinity | 106.6 mS/m |
| TDS | 97 |
| Illuminance | 4088 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.21 V |
| Battery capacity | 100 % |
| RSSI | -59 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 | 18.96 °C |
|---|---|
| Humidity | 27.76 % |
| Nko | 1 mg/kg |
| Pko | 50 mg/kg |
| Kko | 42 mg/kg |
| Vodivost | 193 mS/m |
| pH | 3.3 |
| Salinity | 106 mS/m |
| TDS | 96 |
| Illuminance | 3982 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.5 V |
| Battery capacity | 100 % |
| RSSI | -61 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 | 19.4 °C |
|---|---|
| Humidity | 38.62 % |
| Nko | 12 mg/kg |
| Pko | 74 mg/kg |
| Kko | 66.2 mg/kg |
| Vodivost | 243.2 mS/m |
| pH | 3 |
| Salinity | 133.2 mS/m |
| TDS | 121.2 |
| Illuminance | 4095 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.19 V |
| Battery capacity | 100 % |
| RSSI | -56 dBm |
Boruvka1
| Temperature | 20.62 °C |
|---|---|
| Humidity | 37.12 % |
| Nko | 1 mg/kg |
| Pko | 35 mg/kg |
| Kko | 28 mg/kg |
| Vodivost | 163 mS/m |
| pH | 3 |
| Salinity | 89 mS/m |
| TDS | 81 |
| Illuminance | 4095 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 7.03 V |
| Battery capacity | 100 % |
| RSSI | -59 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 | 19.6 °C |
|---|---|
| Humidity | 18.82 % |
| Nko | 1 mg/kg |
| Pko | 1 mg/kg |
| Kko | 1 mg/kg |
| Vodivost | 59 mS/m |
| pH | 3.12 |
| Salinity | 32 mS/m |
| TDS | 29 |
| Illuminance | 4095 lx |
| Battery voltage | 3.89 V |
| Panel voltage | 0 V |
| Battery capacity | 74 % |
| RSSI | -62 dBm |