The LSNPK01 is a LoRaWAN Soil NPK sensing element for IoT of Agriculture. it’s designed to measure the Soil Fertility Nutrient and supply a plant growing reference. The probe is IP68 waterproof and can be buried into soil for long term use. LSNPK01 detects soil’s nitrogen, Phosphorus, and potassium use TDR methodology, and uploads these values via wireless to LoRaWAN IoT Server. The LoRa wireless technology employed in LSNPK01 permits device to send information and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity while minimizing current consumption. LSNPK01 is power-driven by 8500mAh Li-SOCI2 battery, it’s designed for long run assign to five years. every LSNPK01 is pre-load with a group of distinctive keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it’ll auto connect once power on.
NPK Sensor Specifications
• Range 1-1999 mg/kg
• Resolution: 1 mg/kg
• Accuracy: ±2%FS
• Material: Stainless Steel Probe
• IP68 Protection
• 8500mAh Battery for long term use
• Range 1-1999 mg/kg
• Resolution: 1 mg/kg
• Accuracy: ±2%FS
• Material: Stainless Steel Probe
• Length: 2 meters
LoRa and MCU Specification
• 168 dB maximum link budget.
• +20 dBm – 100 mW constant RF output vs.
• +14 dBm high efficiency PA.
• Programmable bit rate up to 300 kbps.
• High sensitivity: down to -148 dBm.
• Bullet-proof front end: IIP3 = -12.5 dBm.
• Excellent blocking immunity.
• Low RX current of 10.3 mA, 200 nA register retention.
• Fully integrated synthesizer with a resolution of 61 Hz.
• FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
• Built-in bit synchronizer for clock recovery.
• Preamble detection.
• 127 dB Dynamic Range RSSI.
• Automatic RF Sense and CAD with ultra-fast AFC.
• Packet engine up to 256 bytes with CRC.
MCU Specification
• MCU: STM32L072CZT6
• Flash:192KB
• SRAM:20KB
• EEPROM:6KB
• Clock Speed: 32MHz
Features
• LoRaWAN 1.0.3 Class A
• Ultra-low power consumption
• Monitor Soil Nitrogen
• Monitor Soil Phosphorus
• Monitor Soil Potassium
• Monitor Battery Level
• Bands: IN865
• AT Commands to change parameters
• Uplink on periodically
• Downlink to change configure
• IP66 Waterproof Enclosure
• IP68 rate for the Sensor Probe
• 8500mAh Battery for long term use
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