Crops
23.09.2026 08:17:37
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 | 12.6 °C |
|---|---|
| Humidity | 31.36 % |
| Nko | 1 mg/kg |
| Pko | 39 mg/kg |
| Kko | 31 mg/kg |
| Vodivost | 171 mS/m |
| pH | 3.18 |
| Salinity | 94 mS/m |
| TDS | 85 |
| Illuminance | 3956 lx |
| Battery voltage | 4.11 V |
| Panel voltage | 4.09 V |
| Battery capacity | 92 % |
| RSSI | -52 dBm |
Malina2
| Temperature | 18.3 °C |
|---|---|
| Humidity | 44.1 % |
| Nko | 25 mg/kg |
| Pko | 105 mg/kg |
| Kko | 98 mg/kg |
| Vodivost | 308 mS/m |
| pH | 3.3 |
| Salinity | 169 mS/m |
| TDS | 154 |
| Illuminance | 0 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 0 V |
| Battery capacity | 100 % |
| RSSI | -54 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 | 12.98 °C |
|---|---|
| Humidity | 24.4 % |
| Nko | 1 mg/kg |
| Pko | 31 mg/kg |
| Kko | 23 mg/kg |
| Vodivost | 153 mS/m |
| pH | 3 |
| Salinity | 84 mS/m |
| TDS | 76 |
| Illuminance | 4028 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.46 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 | 13.6 °C |
|---|---|
| Humidity | 24.46 % |
| Nko | 1 mg/kg |
| Pko | 17 mg/kg |
| Kko | 9 mg/kg |
| Vodivost | 125 mS/m |
| pH | 3.42 |
| Salinity | 68 mS/m |
| TDS | 62 |
| Illuminance | 3984 lx |
| Battery voltage | 3.64 V |
| Panel voltage | 3.69 V |
| Battery capacity | 53 % |
| RSSI | -46 dBm |
Boruvka1
| Temperature | 10.9 °C |
|---|---|
| Humidity | 20.34 % |
| Nko | 3 mg/kg |
| Pko | 1 mg/kg |
| Kko | 1 mg/kg |
| Vodivost | 73 mS/m |
| pH | 3 |
| Salinity | 40 mS/m |
| TDS | 36 |
| Illuminance | 3967 lx |
| Battery voltage | 4.2 V |
| Panel voltage | 4.35 V |
| Battery capacity | 100 % |
| RSSI | -58 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 | 17.4 °C |
|---|---|
| Humidity | 17.22 % |
| Nko | 1 mg/kg |
| Pko | 1 mg/kg |
| Kko | 1 mg/kg |
| Vodivost | 37 mS/m |
| pH | 3.48 |
| Salinity | 20 mS/m |
| TDS | 18 |
| Illuminance | 3698 lx |
| Battery voltage | 3.77 V |
| Panel voltage | 0 V |
| Battery capacity | 64 % |
| RSSI | -62 dBm |