Crops
10.05.2026 05:55:35
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 | 11.5 °C |
|---|---|
| Humidity | 53.58 % |
| Nko | 25 mg/kg |
| Pko | 104 mg/kg |
| Kko | 97 mg/kg |
| Vodivost | 305 mS/m |
| pH | 3.06 |
| Salinity | 167 mS/m |
| TDS | 152 |
| Illuminance | 3693 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.19 V |
| Battery capacity | 100 % |
| RSSI | -50 dBm |
Malina2
| Temperature | 13.2 °C |
|---|---|
| Humidity | 44.4 % |
| Nko | 13.8 mg/kg |
| Pko | 78 mg/kg |
| Kko | 70.8 mg/kg |
| Vodivost | 251.8 mS/m |
| pH | 3.24 |
| Salinity | 138 mS/m |
| TDS | 125.8 |
| Illuminance | 3897 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.29 V |
| Battery capacity | 100 % |
| RSSI | -48 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 | 3628 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.37 V |
| Battery capacity | 100 % |
| RSSI | -60 dBm |
Malina4
| Temperature | 11.8 °C |
|---|---|
| Humidity | 46 % |
| Nko | 7.4 mg/kg |
| Pko | 64 mg/kg |
| Kko | 56.4 mg/kg |
| Vodivost | 222.4 mS/m |
| pH | 3.18 |
| Salinity | 122 mS/m |
| TDS | 111 |
| Illuminance | 3764 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.42 V |
| Battery capacity | 100 % |
| RSSI | -64 dBm |
Malina5
| Temperature | 12.34 °C |
|---|---|
| Humidity | 34.64 % |
| Nko | 16 mg/kg |
| Pko | 83 mg/kg |
| Kko | 75 mg/kg |
| Vodivost | 261 mS/m |
| pH | 3.32 |
| Salinity | 143 mS/m |
| TDS | 130 |
| Illuminance | 3658 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.25 V |
| Battery capacity | 100 % |
| RSSI | -52 dBm |
Malina6
| Temperature | 15.5 °C |
|---|---|
| Humidity | 44.82 % |
| Nko | 1 mg/kg |
| Pko | 46.4 mg/kg |
| Kko | 39 mg/kg |
| Vodivost | 186.4 mS/m |
| pH | 3 |
| Salinity | 102 mS/m |
| TDS | 93 |
| Illuminance | 4095 lx |
| Battery voltage | 3 V |
| Panel voltage | 7.22 V |
| Battery capacity | 0 % |
| RSSI | -45 dBm |
Boruvka1
| Temperature | 11.5 °C |
|---|---|
| Humidity | 42.12 % |
| Nko | 0 mg/kg |
| Pko | 24 mg/kg |
| Kko | 16 mg/kg |
| Vodivost | 139.8 mS/m |
| pH | 3 |
| Salinity | 76.8 mS/m |
| TDS | 69.8 |
| Illuminance | 3819 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.3 V |
| Battery capacity | 100 % |
| RSSI | -52 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 | 12.9 °C |
|---|---|
| Humidity | 38.96 % |
| Nko | 26 mg/kg |
| Pko | 107 mg/kg |
| Kko | 99 mg/kg |
| Vodivost | 311 mS/m |
| pH | 3 |
| Salinity | 171 mS/m |
| TDS | 155 |
| Illuminance | 3455 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 0 V |
| Battery capacity | 100 % |
| RSSI | -62 dBm |