The LLMS01 is a long range LoRaWAN node that provides spread spectrum communication and high interference immunity whilst minimising power consumption. Its IP66 waterproof design makes it suitable for outdoor use. Its powered by a 8500mA Li/SOCl2 non-rechargeable battery and due to its low power consumption, users can expect years of operation with a moderate logging rate. The LoRa technology used for transmission allows you to send you pH data extremely long distances, and this is boosted further with the external antenna. Ranges for of more than 10km line-of-sight are not uncommon.
The LLMS01 probe is designed in a leaf shape to best simulate real leaf characteristics and consists of 15 leaf veins per centimetre, meaning it can sense smaller drops with more accuracy. It detects the leaf's moisture and temperature using the FDR method (Frequency Domain Sensors), where the leaf is used as a capacitor to measure the maximum resonant frequency in the electrical circuit, and that relates to the moisture content.
The operating parameters and many other settings on the LLMS01 can be modified via AT commands on the serial port interface through a terminal program like RealTerm, but an FT232RL USB-TTL converter is required for this task (not supplied). The communications port can also be used to upload new firmware via the built-in bootloader. When purchased with a T2U node licence, there is generally no need to worry about the technical stuff, as your device comes preconfigured for the Telemetry2U servers and loaded with the latest firmware, ready to go. Once its connected, you'll be able to send commands and change the settings on your device from the T2U interface, so there is no need to connect to via the serial port.
Telemetry2U has a live demo of a Dragino LLMS01 Leaf Moisture Sensorrunning on our IoT Platform.
You can read more about how modern day farmers are already Leaf Moisture on Telemetry2U to add a level of 'Smart Farming' and better improve crop yeild and quality - all while using precious resources like water more efficently.
If you have any questions about how Telemetry2U can help you get your world on the IoT cloud, please get in touch with us today, we're here to help.
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- Ultra low power consumption
- LoRaWAN 1.0.3 Class A
- Monitor Leaf Moisture
- Monitor LeafTemperature
- AT Commands to change parameters
- Uplink on periodically
- Downlink to change configure
- IP66 Waterproof Enclosure
- IP67 Sensor
- 8500mAh Battery for long term use
- Smart farming
- Home gardens
- Research applications
- 1 x LLMS01 module
- 1 x External RF antenna
- 1 x Leaf Moisture/Temperature probe - fitted
- Device size: 130 x 50x 45mm
- Device weight: 150g
- Package size / pcs : 140 x 80 x 50mm
- Package weight / pcs : 180g