//, LoRaWAN, LoRaWAN/SenseCAP Wireless Soil Moisture and Temperature Sensor – LoRaWAN

SenseCAP Wireless Soil Moisture and Temperature Sensor – LoRaWAN

SenseCAP Wireless Soil Moisture and Temperature Sensor measures soil volumetric water content (VWC) and temperature. It’s designed with a 2-in-1 sensor that integrates soil temperature and soil moisture, a custom battery, and an IP66 enclosure, optimized for outdoor use cases that need reliable data collection over years.

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About SenseCAP

Among the first launch of Seeed industrial IoT (IIoT) product series, SenseCAP is focusing on wireless environmental sensing applications: smart agriculture, precision farming, and smart city, to name a few. It consists of hardware products (sensors, data-loggers & gateways, etc.), software services (SenseCAP portal, mobile App, open dashboard), and API for device & data management. SenseCAP supports different communication protocols, such as LoRa, 2G, 4G, NB-IoT, and more.

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SenseCAP Wireless Soil Moisture & Temperature Sensor measures soil volumetric water content (VWC) and soil temperature at the range of 0 ~ 100% (m³/m³) and -30 ~ 70℃ respectively. With the high-quality soil moisture and temperature probe, this sensor features high precision and sensitivity regardless of soil variability, making it widely applicable in industrial IoT (IIoT) scenarios such as water-saving irrigation, outdoor fields, greenhouses, and more.

This device incorporates a built-in LoRa transmitter based on SX1276 for long-range transmission, a 2-in-1 sensor, and a custom battery. It is specifically designed and optimized for user cases powering end devices by batteries for years.To minimize the power consumption, the device wakes up, transmits the collected soil moisture and temperature data to the gateway, and then goes back to sleep.

Under the best of circumstances, the battery is expected to last for more than 6 years, depending on environmental factors and the data transmission intervals. Please kindly note that the default interval is once per hour. If you’d like to change the data upload interval, please refer to this document

To fit in adverse conditions, this wireless sensor is designed with industry standards and equipped with an IP66 waterproof enclosure, protecting the device from UV radiation, rain, and sunlight exposure.

The SenseCAP Sensor adopts a modular design, integrating the data logger with the sensor probe, which can be replaced by other SenseCAP sensor probes.

 

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Note

SenseCAP Sensor is fully compliant with LoRaWAN specifications and can be used with standard LoRaWAN gateways. Please choose the corresponding gateway according to the sensor frequency.

Seeed also provides SenseCAP LoRaWAN Gateway for you to use with SenseCAP Sensors seamlessly without extra huge workload for provisioning.

System Architecture

SenseCAP Architecture

System Architecture

SenseCAP Sensor + Other LoRaWAN Gateway Architecture

Other System Architecture

Features

  • Support LoRaWAN protocol Class A
  • High reliability and stability
  • Ultra-wide-distance transmission: 10km in line of sight scene, 2 km in urban scenes
  • Battery life ≥ 6 years
  • IP66 enclosure, suitable for outdoor applications
  • Rapid installation and deployment (see the video below)

Applications

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  • Smart Agriculture
  • Smart Building and Industrial Control
  • Environmental Monitoring
  • Other Wireless Sensing Applications

User Cases

SenseCAP has been deployed in different application scenarios including tea plantations, greenhouses, outdoor triticale farms and weather stations, etc., Please see more info below:

Specifications

Soil Temperature
Range-30 ℃ to +70 ℃
Accuracy±0.5 ℃
Resolution0.1 ℃
Soil Moisture
RangeFrom completely dry to fully saturated (from 0% to 100% of saturation)
Accuracy±2% ( 0 to 50 %); ±3% ( 50 to 100 %) 
Resolution0.03 %(0 to 50%); 1%(50 to 100%)
General Parameters
Product FrequencyEU868, US915
MicrocontrollerUltra-low-power MCU
Support ProtocolBased on LoRaWAN v1.0.2 protocol
LoRa Channel PlanEU868, US915
LoRa Power Output16 dBm (EIRP)
Sensitivity-137.5dBm(SF12, BW125KHz)
Current Consumption5 μA (sleep mode)
120 mA max(active mode)
Communication Distance2 to 10 km (depending on different antennas and environments)
Measuring AreaA cylinder area (with the probe as the center, diameter: 7cm, height: 7cm)
IP RatingIP66
UV Resistanceanti-aging (from rain/sun exposure): UL746C F1
Enclosure MaterialPC
Operating Temperature-30 ℃ to +70 ℃
Operating Humidity0 to 100 %RH (non-condensing)
Device Weight415g
CertificationCE, FCC, RoHS
Battery (Contained in equipment)
Battery Life≥ 3 year (upload data once per hour)
Battery Voltage3.6V
Battery Capacity19Ah (non-rechargeable)

LoRa Frequency

The device is designed with a fixed LoRa channel, which can not be modified by users. The supported channels are as follows. Please refer to this document for how to connect this device with a standard LoRaWAN gateway.

LoRa Channel Plan for EU868
Uplink (MHz)868.1 – SF7BW125 to SF12BW125
868.3 – SF7BW125 to SF12BW125 and SF7BW250
868.5 – SF7BW125 to SF12BW125
867.1 – SF7BW125 to SF12BW125
867.3 – SF7BW125 to SF12BW125
867.5 – SF7BW125 to SF12BW125
867.7 – SF7BW125 to SF12BW125
867.9 – SF7BW125 to SF12BW125
Downlink (MHz)Uplink channels 1-8 (RX1)
869.525 – SF9BW125 (RX2 downlink only)
LoRa Channel Plan for US915
Uplink (MHz)903.9 – SF7BW125 to SF10BW125
904.1 – SF7BW125 to SF10BW125
904.3 – SF7BW125 to SF10BW125
904.5 – SF7BW125 to SF10BW125
904.7 – SF7BW125 to SF10BW125
904.9 – SF7BW125 to SF10BW125
905.1 – SF7BW125 to SF10BW125
905.3 – SF7BW125 to SF10BW125
Downlink (MHz)923.3 – SF7BW500 to SF12BW500
923.9 – SF7BW500 to SF12BW500
924.5 – SF7BW500 to SF12BW500
925.1 – SF7BW500 to SF12BW500
925.7 – SF7BW500 to SF12BW500
926.3 – SF7BW500 to SF12BW500
926.9 – SF7BW500 to SF12BW500
927.5 – SF7BW500 to SF12BW500

Part List

Soil MT Partlist

Part List
1Sensorx1
2Bracketx1
3M4 Self-drilling Screwx4
4M3 Self-drilling Screwx2

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