SW3L-LB/LS -- LoRaWAN Flow Sensor User Manual

The Dragino SW3L-LB/LS is a (% style="color:blue" %)**LoRaWAN Flow Sensor**(%%). It detects water flow volume and uplink to IoT server via LoRaWAN network. User can use this to(% style="color:blue" %)** monitor the water usage for buildings.**

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The SW3L-LB/LS will send water flow volume every 20 minutes. It can also (% style="color:blue" %)**detect the water flow status**(%%) and (% style="color:blue" %)**send Alarm**(%%), to avoid the waste for water usage such as broken toilet case.

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SW3L-LB/LS is designed for both indoor and outdoor use. It has a weatherproof enclosure and industrial level battery to work in low to high temperatures.

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The LoRa wireless technology used in SW3L-LB/LS allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.

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SW3L-LB/LS (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.

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SW3L-LB/LS is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery **(%%)or (% style="color:blue" %)**solar powered + li-on battery**(%%), it is designed for long term use up to 5 years.

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Each SW3L-LB/LS is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.

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[[image:image-20230530135919-1.png||height="404" width="806"]]

== 1.2 Features ==

* LoRaWAN 1.0.3 Class A

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* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865

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* Ultra-low power consumption

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* Upload water flow volume

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* Monitor water waste

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* AT Commands to change parameters

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* supports Datalog feature

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* Support Bluetooth v5.1 and LoRaWAN remote configure

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* Support wireless OTA update firmware

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* Uplink on periodically and open/close event

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* Downlink to change configure

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* 8500mAh Li/SOCl2 Battery (SW3L-LB)

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* Solar panel + 3000mAh Li-on battery (SW3L-LS)

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== 1.3 Specification ==

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(% style="color:#037691" %)**Common DC Characteristics:**

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* Supply Voltage: Built-in Battery , 2.5v ~~ 3.6v

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* Operating Temperature: -40 ~~ 85°C

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(% style="color:#037691" %)**LoRa Spec:**

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* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz

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* Max +22 dBm constant RF output vs.

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* RX sensitivity: down to -139 dBm.

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* Excellent blocking immunity

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(% style="color:#037691" %)**Battery:**

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* Li/SOCI2 un-chargeable battery

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* Capacity: 8500mAh

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* Self-Discharge: <1% / Year @ 25°C

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* Max continuously current: 130mA

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* Max boost current: 2A, 1 second

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(% style="color:#037691" %)**Power Consumption**

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* Sleep Mode: 5uA @ 3.3v

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* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

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== 1.4 Applications ==

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* Flow Sensor application

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* Water Control

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* Toilet Flow Sensor

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* Monitor Waste water

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== 1.5 Sleep mode and working mode ==

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(% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.

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(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.

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== 1.6 Button & LEDs ==

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/WebHome/image-20240103160425-4.png?rev=1.1||alt="image-20240103160425-4.png"]]

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**

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|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((

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If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.

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Meanwhile, BLE module will be active and user can connect via BLE to configure device.

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|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((

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(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.

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(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.

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Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.

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|(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.

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== 1.7 BLE connection ==

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SW3L-LB/LS support BLE remote configure.

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BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:

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* Press button to send an uplink

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* Press button to active device.

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* Device Power on or reset.

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If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.

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== 1.8 Pin Definitions ==

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[[image:image-20230614172344-1.png]]

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== 1.9 Flow Sensor Spec ==

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(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:778px" %)

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|=(% style="width: 103px; background-color:#4F81BD; color: white;" %)**Model**|=(% style="width: 133px; background-color: rgb(79, 129, 189); color: white;" %)SW3L-002-FE|=(% style="width: 135px; background-color: rgb(79, 129, 189); color: white;" %)**SW3L-004**|=(% style="width: 150px; background-color: rgb(79, 129, 189); color: white;" %)SW3L-006|=(% style="width: 120px; background-color: rgb(79, 129, 189); color: white;" %)SW3L-010|=(% style="width: 151px; background-color: rgb(79, 129, 189); color: white;" %)SW3L-020

|(% style="width:152px" %)**Power Consumption**|(% style="width:133px" %)1uA, 3.6v (Sensor Only)|(% style="width:135px" %)1uA, 3.6v (Sensor Only)|(% style="width:150px" %)1uA, 3.6v (Sensor Only)|(% style="width:120px" %)1uA, 3.6v (Sensor Only)|(% style="width:151px" %)1uA, 3.6v (Sensor Only)

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|(% style="width:152px" %)**Humidity Range**|(% style="width:133px" %)35%~~90%RH (no frost)|(% style="width:135px" %)35%~~90%RH (no frost)|(% style="width:150px" %)35%~~90%RH (no frost)|(% style="width:120px" %)35%~~90%RH (no frost)|(% style="width:151px" %)35%~~90%RH (no frost)

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(% style="color:red" %)**Notice: SW3L-002-FE model is none off-shore model, only valid with MOQ of 200pcs ordering. **

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== 1.10 Mechanical ==

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=== 1.10.1 for LB version ===

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS75-LB_LoRaWAN_Distance_Detection_Sensor_User_Manual/WebHome/image-20240105152536-3.png?rev=1.1||alt="image-20240105152536-3.png"]]

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(% style="color:blue" %)**002-FE: diameter: G1/4” / DN10. 1377 pulse = 1 L**

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[[image:image-20240209233838-1.png]]

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(% style="color:blue" %)**004: DW-004 Flow Sensor: diameter: G1/2” / DN15. 450 pulse = 1 L**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519091350-1.png?width=722&height=385&rev=1.1||alt="image-20220519091350-1.png"]]

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(% style="color:blue" %)**006: DW-006 Flow Sensor: diameter: G3/4” / DN20. 390 pulse = 1 L**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519091423-2.png?width=723&height=258&rev=1.1||alt="image-20220519091423-2.png"]]

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(% style="color:blue" %)**010: DW-010 Flow Sensor: diameter: G 1” / DN25. 64 pulse = 1 L**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519091423-3.png?width=724&height=448&rev=1.1||alt="image-20220519091423-3.png"]]

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(% style="color:blue" %)**020: DW-020 Flow Sensor: diameter: G 2”/ DN50. 12 pulse = 1 L**

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[[image:image-20240125090731-1.png]]

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=== 1.10.2 for LS version ===

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-LB/WebHome/image-20231231203439-3.png?width=886&height=385&rev=1.1||alt="image-20231231203439-3.png"]]

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= 2. Configure SW3L-LB/LS to connect to LoRaWAN network =

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== 2.1 How it works ==

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The SW3L-LB/LS is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the SW3L-LB/LS. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.

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(% style="display:none" %) (%%)

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== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==

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Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.

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The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.

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[[image:image-20230530135929-2.png||height="404" width="806"]](% style="display:none" %)

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(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from SW3L-LB/LS.

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Each SW3L-LB/LS is shipped with a sticker with the default device EUI as below:

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[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]

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You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:

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(% style="color:blue" %)**Register the device**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]

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(% style="color:blue" %)**Add APP EUI and DEV EUI**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]

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(% style="color:blue" %)**Add APP EUI in the application**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]

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(% style="color:blue" %)**Add APP KEY**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]

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(% style="color:blue" %)**Step 2:**(%%) Activate on SW3L-LB/LS

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Press the button for 5 seconds to activate the SW3L-LB/LS.

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(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.

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After join success, it will start to upload messages to TTN and you can see the messages in the panel.

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== 2.3 Uplink Payload ==

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=== 2.3.1 Device Status, FPORT~=5 ===

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Include device configure status. Once SW3L-LB/LS Joined the network, it will uplink this message to the server. After that, SW3L-LB/LS will uplink Device Status every 12 hours.

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Users can also use the downlink command**(0x26 01)** to ask SW3L-LB/LS to resend this uplink. This uplink payload also includes the DeviceTimeReq to get time.

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The Payload format is as below.

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**

Example parse in TTNv3

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[[image:image-20230614172520-3.png||height="169" width="869"]]

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(% style="color:#037691" %)**Sensor Model**(%%): For SW3L-LB/LS, this value is 0x1F

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(% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version

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(% style="color:#037691" %)**Frequency Band**:

0x01: EU868

0x02: US915

0x03: IN865

0x04: AU915

0x05: KZ865

0x06: RU864

0x07: AS923

0x08: AS923-1

0x09: AS923-2

0x0a: AS923-3

0x0b: CN470

0x0c: EU433

0x0d: KR920

0x0e: MA869

(% style="color:#037691" %)**Sub-Band**:

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AU915 and US915:value 0x00 ~~ 0x08

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CN470: value 0x0B ~~ 0x0C

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Other Bands: Always 0x00

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(% style="color:#037691" %)**Battery Info**:

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Check the battery voltage.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

=== 2.3.2 Sensor Configuration, FPORT~=4 ===

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SW3L-LB/LS will only send this command after getting the downlink command **(0x26 02)** from the server.

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|(% style="background-color:#4f81bd; color:white; width:70px" %) **Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:105px" %)**3**|(% style="background-color:#4f81bd; color:white; width:60px" %)**1**|(% style="background-color:#4f81bd; color:white; width:96px" %)**1**|(% style="background-color:#4f81bd; color:white; width:105px" %)**2**|(% style="background-color:#4f81bd; color:white; width:74px" %)**1**

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Example parse in TTNv3

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[[image:image-20230614172555-4.png||height="151" width="853"]]

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* (% style="color:blue" %)**TDC: (default: 0x0004B0)**

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Uplink interval for the total pulse count, default value is 0x0004B0 which is 1200 seconds = 20 minutes.

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* (% style="color:blue" %)**STOP Duration & Alarm Timer**

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Shows the configure value of [[Alarm for continuously water flow>>||anchor="H3.3.4Alarmforcontinuouslywaterflow"]]

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=== 2.3.3 Water Flow Value, Uplink FPORT~=2 ===

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SW3L-LB/LS will send this uplink **after** Device Status once join the LoRaWAN network successfully. And SW3L-LB/LS will:

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periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].

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Uplink Payload totals 11 bytes.

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)

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|=(% colspan="6" style="width: 515px; background-color:#4F81BD;color:white" %)**Water Flow Value, FPORT=2**

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|(% style="width:110px" %)Value|(% style="width:81px" %)Calculate Flag & [[Alarm>>||anchor="H3.3.4Alarmforcontinuouslywaterflow"]]|(% style="width:95px" %)(((

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Total pulse Or Last Pulse

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)))|(% style="width:78px" %)(((

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MOD & PA4_status & PB15_status

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)))|(% style="width:92px" %)Reserve(0x01)|(% style="width:134px" %)[[Unix TimeStamp>>||anchor="H2.5.2UnixTimeStamp"]]

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**Calculate Flag & Alarm:**

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)

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|(% style="background-color:#4f81bd; color:white; width:70px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:white; width:70px" %)**[bit7:bit6]**|(% style="background-color:#4f81bd; color:white; width:90px" %)**[bit5:bit2]**|(% style="background-color:#4f81bd; color:white; width:140px" %)**bit1**|(% style="background-color:#4f81bd; color:white; width:130px" %)**bit0**

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**MOD & PA4_status & PB15_status:**

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:230px" %)

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|(% style="background-color:#4f81bd; color:white; width:50px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:white; width:60px" %)**bit7**|(% style="background-color:#4f81bd; color:white; width:60px" %)**bit6**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[bit5:bit0]**

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|(% style="width:88px" %)Value|(% style="width:117px" %)PA4_status|(% style="width:117px" %)PB15_status|(% style="width:118px" %)MOD

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(% style="color:#037691" %)** **[[image:image-20230626093242-1.png||height="276" width="892"]]

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(% style="color:blue" %)**Calculate Flag**

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The calculate flag is a user defined field, IoT server can use this flag to handle different meters with different pulse factors. For example, if there are 100 Flow Sensors, meters 1 ~~50 are 1 liter/pulse and meters 51 ~~ 100 has 1.5 liter/pulse.

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**Example: in the default payload:**

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calculate flag=0: for SW3L-004 Flow Sensor: 450 pulse = 1 L

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calculate flag=1: for SW3L-006 Flow Sensor: 390 pulse = 1 L

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calculate flag=2: for SW3L-010 Flow Sensor: 64 pulse = 1 L

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calculate flag=3: for SW3L-010 Flow Sensor: 12 pulse = 1 L

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Default value: 0.

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Range (4 bits): (b)0000 ~~ (b) 1111

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If user use with a meter for example is 0.02L/pulse. To proper decode the correct value in server,

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1) User can set the Calculate Flag of this sensor to 3.

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2) In server side, when a sensor data arrive, the decoder will check the value of Calculate Flag, It the value is 3, the total volume = 0.02 x Pulse Count.

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(% style="color:red" %)**NOTE: User need to set Calculate Flag to proper value before use Flow Sensor. Downlink or AT Command see: **(%%)Refer: [[Set Calculate Flag>>||anchor="H3.3.5Setthecalculateflag"]]

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(% style="color:blue" %)**Alarm**

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See [[Alarm for continuously water flow>>||anchor="H3.3.4Alarmforcontinuouslywaterflow"]]

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519095946-4.png?width=724&height=65&rev=1.1||alt="image-20220519095946-4.png"]]

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* (% style="color:blue" %)**TDC flag**

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When the flag is 1, it means sending packets at normal time intervals.

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Otherwise, it is a packet sent at non-TDC time.

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(% style="color:blue" %)**Total pulse**

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Total pulse/counting since factory

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Range (4 Bytes) : 0x00000000~~ 0xFFFFFFFF .

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(% style="color:blue" %)**Last Pulse**

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Total pulse since last FPORT=2 uplink. (Default 20 minutes)

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Range (4 Bytes) : 0x00000000~~ 0xFFFFFFFF .

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(% style="color:blue" %)**PA4_status: Support digital level input below 3.3V**

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0 ~-~-> PA4 is at low level.

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1 ~-~-> PA4 is at high level.

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(% style="color:blue" %)**PB15_status: Support digital level input below 3.3V**

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0 ~-~-> PB15 is at low level.

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1 ~-~-> PB15 is at high level..

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(% style="color:blue" %)**MOD: Default =0**

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MOD=0 ~-~-> Uplink Total Pulse since factory

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MOD=1 ~-~-> Uplink total pulse since last FPORT=2 uplink.

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(% style="color:blue" %)**Water Flow Value**

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**Total Water Flow Volume = (Calculate Flag) x (Total Pulse)=9597/450=21.3L**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519095946-5.png?width=727&height=50&rev=1.1||alt="image-20220519095946-5.png"]]

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**Total Water Flow for TDC timer = (Calculate Flag) x (Last Pulse)=79/450=0.2L**

548

)))

549

550

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519095946-6.png?width=733&height=43&rev=1.1||alt="image-20220519095946-6.png"]] ** **

551

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553

=== 2.3.4 Historical Water Flow Status, FPORT~=3 ===

(((

SW3L-LB/LS stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5DatalogFeature"]].

)))

(((

The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time water flow status.

562

563

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)

564

|=(% colspan="6" style="width: 515px; background-color:#4F81BD;color:white" %)**Water Flow Value, FPORT=3**

565

566

|(% style="width:110px" %)Value|(% style="width:81px" %)Calculate Flag & [[Alarm>>||anchor="H3.3.4Alarmforcontinuouslywaterflow"]]|(% style="width:95px" %)(((

567

Total pulse Or Last Pulse

568

)))|(% style="width:78px" %)(((

569

MOD & PA4_status & PB15_status

570

)))|(% style="width:92px" %)Reserve(0x01)|(% style="width:134px" %)[[Unix TimeStamp>>||anchor="H2.5.2UnixTimeStamp"]]

571

572

**Calculate Flag & Alarm:**

573

574

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)

575

|(% style="background-color:#4f81bd; color:white; width:50px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:white; width:89px" %)**bit7**|(% style="background-color:#4f81bd; color:white; width:89px" %)**bit6**|(% style="background-color:#4f81bd; color:white; width:69px" %)**[bit5:bit2]**|(% style="background-color:#4f81bd; color:white; width:129px" %)**bit1**|(% style="background-color:#4f81bd; color:white; width:89px" %)**bit0**

576

|(% style="width:88px" %)Value|(% style="width:96px" %)(((

577

No ACK message

578

)))|(% style="width:94px" %)Poll Message Flag|(% style="width:115px" %)Calculate Flag|(% style="width:136px" %)Alarm: 0: No Alarm; 1: Alarm|(% style="width:120px" %)TDC flag 0:No;1:Yes

579

580

**MOD & PA4_status & PB15_status:**

581

582

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:240px" %)

583

|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:white; width:60px" %)**bit7**|(% style="background-color:#4f81bd; color:white; width:60px" %)**bit6**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[bit5:bit0]**

584

|(% style="width:88px" %)Value|(% style="width:117px" %)PA4_status|(% style="width:117px" %)PB15_status|(% style="width:118px" %)MOD

)))

* (((

Each data entry is 11 bytes and has the same structure as [[real time water flow status>>||anchor="H2.3.3A0WaterFlowValue2CUplinkFPORT3D2"]], to save airtime and battery, SW3L will send max bytes according to the current DR and Frequency bands.

)))

(((

For example, in the US915 band, the max payload for different DR is:

)))

(((

(% style="color:blue" %)**a) DR0:**(%%) max is 11 bytes so one entry of data

)))

(((

(% style="color:blue" %)**b) DR1:**(%%) max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)

)))

(((

(% style="color:blue" %)**c) DR2:**(%%) total payload includes 11 entries of data

)))

(((

(% style="color:blue" %)**d) DR3:**(%%) total payload includes 22 entries of data.

)))

(((

If SW3L-LB/LS doesn't have any data in the polling time. It will uplink 11 bytes of 0

)))

(((

(% style="color:#037691" %)**Downlink:**

)))

(((

0x31 64 92 C5 AC 64 92 C7 8C 05

623

)))

624

625

[[image:image-20230626093440-2.png||height="160" width="890"]]

(((

(% style="color:#037691" %)**Uplink:**

)))

(((

41 00 01 00 00 00 08 64 92 C5 E4 40 00 01 00 00 00 08 64 92 C6 06 49 41 01 00 00 00 00 64 92 C6 8B 49 81 01 00 00 00 00 64 92 C7 34 4A 01 01 00 00 00 2D 64 92 C7 7C

)))

(((

(% style="color:#037691" %)**Parsed Value:**

)))

(((

[TDC_flag, Alarm, Calculate Flag, PA4_status, PB15_status, MOD, Total pulse or Last Pulse,** **Water Flow Value, TIME]

)))

(((

[YES,FALSE,0,L,L, 0,8, 0.0,2023-06-21 09:41:56],

649

650

[NO,FALSE,0,L,L, 0,8, 0.0,2023-06-21 09:42:30],

651

652

[YES,FALSE,2,L,H,1,0, 0.0,2023-06-21 09:44:43],

653

654

[YES,FALSE,2,H,L,1,0, 0.0,2023-06-21 09:47:32],

655

656

[NO,TRUE ,2, L,L,1,45,0.7,2023-06-21 09:48:44],

)))

[[image:image-20230626093703-3.png||height="156" width="894"]]

662

663

664

== 2.4 Payload Decoder file ==

665

666

667

In TTN, use can add a custom payload so it shows friendly reading

668

669

In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder**(%%) to add the decoder from: [[dragino-end-node-decoder/SW3L-LB at main · dragino/dragino-end-node-decoder · GitHub>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/SW3L-LB]]

670

671

672

== 2.5 Datalog Feature ==

673

674

675

Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, SW3L-LB/LS will store the reading for future retrieving purposes.

676

677

(% style="color:red" %)**Note: After the device is reset, in cumulative counting mode,the last stored count value will be read as the initial value.**

678

679

680

=== 2.5.1 Ways to get datalog via LoRaWAN ===

681

682

683

Set PNACKMD=1, SW3L-LB/LS will wait for ACK for every uplink, when there is no LoRaWAN network, SW3L-LB/LS will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.

684

685

* (((

686

a) SW3L-LB/LS will do an ACK check for data records sending to make sure every data arrive server.

687

)))

688

* (((

689

b) SW3L-LB/LS will send data in **CONFIRMED Mode** when PNACKMD=1, but SW3L-LB/LS won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if SW3L-LB/LS gets a ACK, SW3L-LB/LS will consider there is a network connection and resend all NONE-ACK messages.

690

)))

691

692

Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)

693

694

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]

695

696

697

=== 2.5.2 Unix TimeStamp ===

698

699

700

SW3L-LB/LS uses Unix TimeStamp format based on

701

702

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]

703

704

User can get this time from link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :

705

706

Below is the converter example

707

708

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]

709

710

711

So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25

712

713

714

=== 2.5.3 Set Device Time ===

715

716

717

User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.

718

719

Once SW3L-LB/LS Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to SW3L-LB/LS. If SW3L-LB/LS fails to get the time from the server, SW3L-LB/LS will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).

720

721

(% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**

722

723

724

=== 2.5.4 Poll sensor value ===

725

726

727

Users can poll sensor values based on timestamps. Below is the downlink command.

728

729

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:425.818px" %)

730

|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**

731

|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**

732

|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval

733

734

(((

735

Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.

)))

(((

For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1||alt="image-20220518162852-1.png"]]

)))

(((

Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data

)))

(((

Uplink Internal =5s，means SW3L-LB/LS will send one packet every 5s. range 5~~255s.

)))

== 2.6 Frequency Plans ==

752

753

754

The SW3L-LB/LS uses OTAA mode and below frequency plans by default. Each frequency band use different firmware, user update the firmware to the corresponding band for their country.

755

756

[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]

757

758

759

= 3. Configure SW3L-LB/LS =

760

761

== 3.1 Configure Methods ==

762

763

764

SW3L-LB/LS supports below configure method:

765

766

* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].

767

768

* AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].

769

770

* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.

771

772

== 3.2 General Commands ==

773

774

775

These commands are to configure:

776

777

* General system settings like: uplink interval.

778

779

* LoRaWAN protocol & radio related command.

780

781

They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:

782

783

[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]

784

785

786

== 3.3 Commands special design for SW3L-LB/LS ==

787

788

789

These commands only valid for SW3L-LB/LS, as below:

790

791

792

=== 3.3.1 Set Transmit Interval Time ===

(((

Feature: Change LoRaWAN End Node Transmit Interval.

)))

(((

(% style="color:blue" %)**AT Command: AT+TDC**

801

)))

802

803

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

804

|=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**

805

|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((

806

30000

807

OK

808

the interval is 30000ms = 30s

809

)))

810

|(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((

811

OK

812

Set transmit interval to 60000ms = 60 seconds

)))

(((

(% style="color:blue" %)**Downlink Command: 0x01**

)))

(((

Format: Command Code (0x01) followed by 3 bytes time value.

)))

(((

If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.

)))

* (((

Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds

829

)))

830

* (((

831

Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds

)))

=== 3.3.2 Set Power Output Duration ===

838

839

840

Control the output duration 5V . Before each sampling, device will

841

842

~1. first enable the power output to external sensor,

843

844

2. keep it on as per duration, read sensor value and construct uplink payload

845

846

3. final, close the power output.

847

848

(% style="color:blue" %)**AT Command:AT+5VT**

849

850

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:460px" %)

851

|=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 175px; background-color: #4F81BD;color:white" %)**Function**|=(% style="background-color: #4F81BD;color:white; width: 126px;" %)**Response**

852

|(% style="width:156px" %)AT+5VT=?|(% style="width:175px" %)Show 5V open time.|(% style="width:126px" %)(((

0 (default)

OK

)))

|(% style="width:156px" %)AT+5VT=1000|(% style="width:175px" %)Close after a delay of 1000 milliseconds.|(% style="width:126px" %)(((

OK

)))

(% style="color:blue" %)**Downlink Command:0x07**

862

863

Format: Command Code (0x07) followed by 2 bytes.

864

865

The first and second bytes are the time to turn on.

866

867

* Example 1: Downlink Payload: 070000 **~-~-->** AT+5VT=0

868

* Example 2: Downlink Payload: 0701F4 **~-~-->** AT+5VT=500

869

870

=== 3.3.3 Set Time Sync Mode ===

871

872

873

Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply to this command.

874

875

SYNCMOD is set to 1 by default. If user wants to set a different time from the LoRaWAN server, the user needs to set this to 0.

876

877

(% style="color:blue" %)**AT Command:**

878

879

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)

880

|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 284px; background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**

881

|(% style="width:156px" %)AT+SYNCMOD=1|(% style="width:284px" %)Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq) The default is zero time zone.|(% style="width:72px" %)(((

OK

)))

|(% style="width:156px" %)AT+SYNCMOD=1,8|(% style="width:284px" %)Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq) Set to East eight time zone.|(% style="width:72px" %)(((

OK

)))

|(% style="width:156px" %)AT+SYNCMOD=1,-12|(% style="width:284px" %)Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq) Set to West Twelve Time Zone.|(% style="width:72px" %)(((

OK

)))

(% style="color:blue" %)**Downlink Command:**

894

895

0x28 01 ~/~/ Same As AT+SYNCMOD=1

896

897

0x28 01 08 ~/~/ Same As AT+SYNCMOD=1,8

898

899

0x28 01 F4 ~/~/ Same As AT+SYNCMOD=1,-12

900

901

0x28 00 ~/~/ Same As AT+SYNCMOD=0

902

903

904

=== 3.3.4 Alarm for continuously water flow ===

(((

This feature is to monitor and send Alarm for continuously water flow.

)))

(((

Example case is for Toilet water monitoring, if some one push toilet button, the toilet will have water flow. If the toilet button has broken and can't returned to original state, the water flow will keep for hours or days which cause huge waste for water.

)))

(((

To monitor this faulty and send alarm, there are two settings:

)))

* (((

(% style="color:blue" %)**Stop Duration: Unit: Second**

)))

(((

Default: 15s, If SW3L-LB/LS didn't see any water flow in 15s, SW3L-LB/LS will consider stop of water flow event.

)))

* (((

(% style="color:blue" %)**Alarm Timer: Units: Minute; Default 0 minutes (means Alarm disable)**

)))

(((

**Example:** 3 minutes, if SW3L-LB/LS detect a start of water flow event and didn't detect a stop event within Alarm timer, SW3L-LB/LS will send an Alarm to indicate a water flow abnormal alarm.

)))

(((

So for example, If we set stop duration=15s and Alarm Timer=3minutes. If the toilet water flow continuously for more than 3 minutes, Sensor will send an alarm (in Confirmed MODE) to platform.

)))

(((

(% style="color:red" %)**Note:** **After this alarm is send, sensor will consider a stop of water flow and count for another new event. So if water flow waste last for 1 hour, Sensor will keep sending alarm every 3 minutes.**

)))

(((

(% style="color:blue" %)**AT Command to configure:**

)))

* (((

AT+PTRIG=15,3 ~-~-> Set Stop duration: 15s, Alarm Timer: 3 minutes.

)))

* (((

AT+ PTRIG=15,0 ~-~-> Default Value, disable water waste Alarm.

)))

(((

(% style="color:blue" %)**Downlink Command to configure:**

)))

(((

Command: **0xAA aa bb cc**

)))

(((

AA: Command Type Code

)))

(((

aa: Stop duration

)))

(((

bb cc: Alarm Timer

)))

(((

If user send 0xAA 0F 00 03: equal to AT+PTRIG=15,3

)))

=== 3.3.5 Set the calculate flag ===

981

982

983

Feature: Set the calculate flag

984

985

(% style="color:blue" %)**AT Command: AT+CALCFLAG**

986

987

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:461px" %)

988

|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 110px;background-color:#4F81BD;color:white" %)**Response**

989

|(% style="width:158px" %)AT+CALCFLAG =1|(% style="width:192px" %)Set the calculate flag to 1.|(% style="width:109px" %)OK

990

|(% style="width:158px" %)AT+CALCFLAG =2|(% style="width:192px" %)Set the calculate flag to 2.|(% style="width:109px" %)OK

991

|(% style="width:158px" %)AT+CALCFLAG =3|(% style="width:192px" %)Set the calculate flag to 3.|(% style="width:109px" %)OK

992

993

(% style="color:blue" %)**Downlink Command:**

994

995

* **Example**: 0XA501 ~/~/ Same as AT+CALCFLAG =1

996

997

=== 3.3.6 Set count number ===

998

999

1000

Feature: Manually set the count number

1001

1002

(% style="color:blue" %)**AT Command: AT+SETCNT**

1003

1004

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:479px" %)

1005

|=(% style="width: 160px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 223px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 96px;background-color:#4F81BD;color:white" %)**Response**

1006

|(% style="width:160px" %)AT+ SETCNT =0|(% style="width:221px" %)Set the count number to 0.|(% style="width:95px" %)OK

1007

|(% style="width:160px" %)AT+ SETCNT =100|(% style="width:221px" %)Set the count number to 100.|(% style="width:95px" %)OK

1008

1009

(% style="color:blue" %)**Downlink Command:**

1010

1011

* **Example**: 0xA6000001 ~/~/ Same as AT+ SETCNT =1

1012

1013

* **Example**: 0xA6000064 ~/~/ Same as AT+ SETCNT =100

1014

1015

=== 3.3.7 Set work mode ===

1016

1017

1018

Feature: Manually set the work mode

1019

1020

(% style="color:blue" %)**AT Command: AT+MOD**

1021

1022

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:463px" %)

1023

|=(% style="width: 162px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 108px;background-color:#4F81BD;color:white" %)**Response**

1024

|(% style="width:162px" %)AT+MOD=0|(% style="width:191px" %)Set the work mode to 0.|(% style="width:106px" %)OK

1025

|(% style="width:162px" %)AT+MOD=1|(% style="width:191px" %)Set the work mode to 1|(% style="width:106px" %)OK

1026

1027

(% style="color:blue" %)**Downlink Command:**

1028

1029

* **Example: **0x0A00 ~/~/ Same as AT+MOD=0

1030

1031

* **Example:** 0x0A01 ~/~/ Same as AT+MOD=1

1032

1033

=== 3.3.8 Clear Flash Record ===

1034

1035

1036

Feature: Clear flash storage for data log feature.

1037

1038

(% style="color:blue" %)**AT Command: AT+CLRDTA**

1039

1040

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)

1041

|=(% style="width: 157px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 169px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 174px;background-color:#4F81BD;color:white" %)**Response**

1042

|(% style="width:157px" %)AT+CLRDTA|(% style="width:169px" %)Clear flash storage for data log feature.|Clear all stored sensor data… OK

1043

1044

= 4. Battery & Power Consumption =

1045

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SW3L-LB use ER26500 + SPC1520 battery pack and SW3L-LS use 3000mAh Recharable Battery with Solar Panel. See below link for detail information about the battery info and how to replace.

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[[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .

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= 5. OTA Firmware update =

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(% class="wikigeneratedid" %)

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User can change firmware SW3L-LB/LS to:

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* Change Frequency band/ region.

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* Update with new features.

* Fix bugs.

Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/qs74jsd0zecdk3q/AADHPJ4Sl6z980Cg-rCdzgeza?dl=0]]**

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Methods to Update Firmware:

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* (Recommanded way) OTA firmware update via wireless : **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]**

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* Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.

= 6. FAQ =

== 6.1 AT Commands input doesn't work ==

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In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.

= 7. Order Info =

**Part Number: (% style="color:blue" %)SW3L-LB-XXX-YYY (%%)or (% style="color:blue" %)SW3L-LS-XX-YY(%%)**

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(% style="color:red" %)**XX**(%%)**: The default frequency band**

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* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band

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* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band

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* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band

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* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band

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* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band

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* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band

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* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band

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* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band

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(((

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(% style="color:blue" %)**YY**(%%)**: Flow Sensor Model**

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* **004:** DW-004 Flow Sensor: diameter: G1/2” / DN15. 450 pulse = 1 L

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* **006:** DW-006 Flow Sensor: diameter: G3/4” / DN20. 390 pulse = 1 L

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* **010:** DW-010 Flow Sensor: diameter: G 1” / DN25. 64 pulse = 1 L

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* **020:** DW-020 Flow Sensor: diameter: G 2” / DN50. 12 pulse = 1 L

)))

= 8. Packing Info =

(% style="color:#037691" %)**Package Includes**:

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* SW3L-LB or SW3L-LS LoRaWAN Flow Sensor

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(% style="color:#037691" %)**Dimension and weight**:

* Device Size: cm

* Device Weight: g

* Package Size / pcs : cm

* Weight / pcs : g

= 9. Support =

* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.

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* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]].

Wiki source code of SW3L-LB/LS -- LoRaWAN Flow Sensor User Manual

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