SW3L-CB -- NB-IoT/LTE-M Flow Sensor User Manual

(% aria-label="image-20231010090810-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)

4

(((

5

(% data-widget="image" style="text-align:center;" %)

6

[[image:image-20231010090810-1.png||height="379" width="614"]](% title="Click and drag to resize" %)

7

8

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]

)))

**Table of Contents:**

19

20

(% aria-label="macro:toc widget" contenteditable="false" role="region" tabindex="-1" %)

(((

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]

)))

= 1. Introduction =

== 1.1 What is SW3L-CB NB-IoT/LTE-M Flow Sensor ==

35

36

37

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

38

39

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

40

41

SW3L-CB is designed for both indoor and outdoor use. It has a weatherproof enclosure and industrial level battery to (% style="color:blue" %)**work in low to high temperatures**.

42

43

SW3L-CB supports different uplink methods including (% style="color:blue" %)**MQTT, MQTTs, UDP, TCP or CoAP**(%%) for different application requirement, and support uplinks to various IoT Servers.

44

45

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

46

47

SW3L-CB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long-term use up to several years.

48

49

SW3L-CB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.

50

51

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)

== 1.2 Features ==

* For -NB Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85

57

* For -CB Bands: B1/B2/B3/B4/B5/B8/B12/B13~/~/B18/B19/B20/B25/B28/B66/B71/B85

58

* CAT-M1 / LTE-M Bands: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85

59

* Ultra-low power consumption

60

* Upload water flow volume

61

* Monitor water waste

62

* Multiply Sampling and one uplink

63

* GNSS for Location Report

64

* Uplink via MQTT, MQTTs, TCP, UDP or CoAP

65

* Support Bluetooth v5.1 remote configure and update firmware

66

* Uplink on periodically

67

* Downlink to change configure

68

* 8500mAh Battery for long term use

69

* Nano SIM card slot for NB-IoT SIM

70

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

71

72

== 1.3 Specification ==

73

74

75

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

76

77

* Supply Voltage: 2.6v ~~ 3.6v

78

* Operating Temperature: -40 ~~ 85°C

79

80

(% style="color:blue" %)**NB-IoT Spec:**

81

82

(% style="color:#037691" %)**NB-IoT Module: BG95-NGFF**

83

84

(% style="color:#037691" %)**Support Bands:**

* B1 @H-FDD: 2100MHz

* B2 @H-FDD: 1900MHz

* B3 @H-FDD: 1800MHz

* B4 @H-FDD: 2100MHz

* B5 @H-FDD: 860MHz

* B8 @H-FDD: 900MHz

* B12 @H-FDD: 720MHz

* B13 @H-FDD: 740MHz

* B17 @H-FDD: 730MHz

* B18 @H-FDD: 870MHz

* B19 @H-FDD: 870MHz

* B20 @H-FDD: 790MHz

* B25 @H-FDD: 1900MHz

99

* B28 @H-FDD: 750MHz

100

* B66 @H-FDD: 2000MHz

101

* B70 @H-FDD: 2000MHz

102

* B85 @H-FDD: 700MHz

103

104

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

105

106

* Li/SOCI2 un-chargeable battery

107

* Capacity: 8500mAh

108

* Self Discharge: <1% / Year @ 25°C

109

* Max continuously current: 130mA

110

* Max boost current: 2A, 1 second

111

112

(% style="color:blue" %)**Power Consumption**

113

114

* STOP Mode: 10uA @ 3.3v

115

* Max transmit power: 350mA@3.3v

116

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

117

118

== 1.4 Flow Sensor Spec ==

(((

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)

123

|=(% style="width: 103px; background-color:#4F81BD; color: white;" %)**Model**|=(% style="width: 103px; background-color:#4F81BD; color: white;" %)**SW3L-004**|=(% style="width: 103px; background-color:#4F81BD; color: white;" %)SW3L-006|=(% style="width: 103px; background-color:#4F81BD; color: white;" %)SW3L-010|=(% style="width: 103px; background-color:#4F81BD; color: white;" %)SW3L-020

|(% style="width:152px" %)**Power Consumption**|(% style="width:176px" %)1uA, 3.6v (Sensor Only)|(% style="width:173px" %)1uA, 3.6v (Sensor Only)|(% style="width:165px" %)1uA, 3.6v (Sensor Only)|(% style="width:190px" %)1uA, 3.6v (Sensor Only)

130

131

132

|(% style="width:152px" %)**Humidity Range**|(% style="width:176px" %)35%~~90%RH (no frost)|(% style="width:173px" %)35%~~90%RH (no frost)|(% style="width:165px" %)35%~~90%RH (no frost)|(% style="width:190px" %)35%~~90%RH (no frost)

)))

== 1.5 Applications ==

137

138

139

* Flow Sensor application

140

* Water Control

141

* Toilet Flow Sensor

142

* Monitor Waste water

143

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

144

145

== 1.6 Sleep mode and working mode ==

146

147

148

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

149

150

(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as NB-IoT Sensor to Join NB-IoT 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.

151

152

153

== 1.7 Button & LEDs ==

154

155

156

(% aria-label="1675071855856-879.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)

157

158

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

159

|=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width:225px;background-color:#4F81BD;color:white" %)**Action**

160

|[[image:1749538656051-989.png]] 1~~3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((

161

If sensor has already attached to NB-IoT/CAT-M1 network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.

162

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

163

)))

164

|[[image:1749538657516-145.png]] >3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((

165

(% 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 attach NB-IoT/CAT-M1 network.

166

Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device attach NB-IoT/CAT-M1 network or not.

167

)))

168

|[[image:1749538676088-587.png]] x5|(% 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.

169

170

(% style="color:red" %)**Note: When the device is executing a program, the buttons may become invalid. It is best to press the buttons after the device has completed the program execution.**

171

172

173

== 1.8 BLE connection ==

174

175

176

SW3L-CB support BLE remote configure and firmware update.

177

178

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:

179

180

* Press button to send an uplink

181

* Press button to active device.

182

* Device Power on or reset.

183

184

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

185

186

187

== 1.9 Pin Definitions , Switch & SIM Direction ==

188

189

[[image:image-20240730155544-1.png]]

190

191

192

=== 1.9.1 Jumper JP2 ===

193

194

195

Power on Device when put this jumper.

196

197

198

=== 1.9.2 BOOT MODE / SW1 ===

199

200

201

**1)** (% style="color:blue" %)**ISP**(%%): upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.

202

203

**2)** (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug

204

205

206

=== 1.9.3 Reset Button ===

207

208

209

Press to reboot the device.

210

211

(% style="display:none" %)

212

213

214

=== 1.9.4 SIM Card Direction ===

215

216

217

See this link. [[How to insert SIM Card>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.AttachNetwork]].

218

219

220

== 1.10 Mechanical ==

221

222

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]

223

224

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)[[image:image-20250401133652-1.jpeg]]

225

226

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)(% style="display:none" %) (%%)

227

228

**Probe Mechanical:**

229

230

231

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

232

233

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)[[image:image-20250401133716-2.jpeg]]

234

235

236

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

237

238

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:image-20250401133727-3.jpeg]](% title="Click and drag to resize" %)[[image:image-20250418145635-1.jpeg]]

239

240

241

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

242

243

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:image-20250401133737-4.jpeg]](% title="Click and drag to resize" %)[[image:image-20250418145656-2.jpeg]]

244

245

246

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

247

248

(% aria-label="image-20231205170947-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20231205170947-1.png]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)

249

250

251

= 2. Use SW3L-CB to communicate with IoT Server =

252

253

== 2.1 Send data to IoT server via NB-IoT/CAT-M1 network ==

254

255

256

The SW3L-CB is equipped with a NB-IoT module, the pre-loaded firmware in SW3L-CB will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module. The NB-IoT network will forward this value to IoT server via the protocol defined by SW3L-CB.

257

258

Below shows the network structure:

259

260

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:image-20240801165103-2.png]](% title="Click and drag to resize" %)[[image:image-20240803091454-1.png]]

261

262

263

There are two version: (% style="color:blue" %)**-GE**(%%) and (% style="color:blue" %)**-1T**(%%) version of SW3L-CB.

264

265

266

(% style="color:blue" %)**GE Version**(%%): This version doesn't include SIM card or point to any IoT server. User needs to use AT Commands to configure below two steps to set SW3L-CB send data to IoT server.

267

268

* Install NB-IoT SIM card and configure APN. See instruction of [[Attach Network>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.AttachNetwork]].

269

270

* Set up sensor to point to IoT Server. See instruction of [[Configure to Connect Different Servers>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.Configuretoconnecttodifferentservers]].

271

272

Below shows result of different server as a glance.

273

274

(% border="1" cellspacing="4" style="width:515px" %)

275

|(% style="background-color:#4f81bd; color:white; width:100px" %)**Servers**|(% style="background-color:#4f81bd; color:white; width:300px" %)**Dash Board**|(% style="background-color:#4f81bd; color:white; width:115px" %)**Comments**

276

|(% style="width:127px" %)[[Node-Red>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.5A0Node-RedA028viaA0MQTT29]]|(% style="width:385px" %)(((

277

(% aria-label="image-20230819113244-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)

278

(((

279

(% data-widget="image" style="text-align:center;" %)

280

[[image:image-20230819113244-8.png||height="183" width="367"]](% title="Click and drag to resize" %)

281

282

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]

283

)))

284

)))|(% style="width:170px" %)

285

|(% style="width:127px" %)[[DataCake>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.4Datacake]]|(% style="width:385px" %)(((

286

(% aria-label="image-20230819113244-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)

287

(((

288

(% data-widget="image" style="text-align:center;" %)

289

[[image:image-20230819113244-9.png||height="119" width="367"]](% title="Click and drag to resize" %)

290

291

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]

292

)))

293

)))|(% style="width:170px" %)

294

|(% style="width:127px" %)[[Tago.IO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.7A0Tago.ioA028viaA0MQTT29]]|(% style="width:385px" %) |(% style="width:170px" %)

295

|(% style="width:127px" %)[[General UDP>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.1GeneralA0UDPA0Connection]]|(% style="width:385px" %)Raw Payload. Need Developer to design Dash Board|(% style="width:170px" %)

296

|(% style="width:127px" %)[[General MQTT>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.2GeneralA0MQTTA0Connection]]|(% style="width:385px" %)Raw Payload. Need Developer to design Dash Board|(% style="width:170px" %)

297

|(% style="width:127px" %)[[ThingSpeak>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.3A0ThingSpeakA028viaA0MQTT29]]|(% style="width:385px" %)(((

298

(% aria-label="image-20230819113244-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)

299

(((

300

(% data-widget="image" style="text-align:center;" %)

301

[[image:image-20230819113244-10.png||height="104" width="367"]](% title="Click and drag to resize" %)

302

303

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]

304

)))

305

)))|(% style="width:170px" %)

306

|(% style="width:127px" %)[[ThingsBoard>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.6A0ThingsBoard.CloudA028viaA0MQTT29]]|(% style="width:385px" %)(((

307

(% aria-label="image-20230819113244-11.png image widget" contenteditable="false" role="region" tabindex="-1" %)

308

(((

309

(% data-widget="image" style="text-align:center;" %)

310

[[image:image-20230819113244-11.png||height="141" width="367"]](% title="Click and drag to resize" %)

311

312

(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]

313

)))

314

)))|(% style="width:170px" %)

315

316

(% style="color:blue" %)**1T Version**(%%): This version has 1NCE SIM card pre-installed and configure to send value to ThingsEye. User Just need to select the sensor type in ThingsEyeand Activate SW3L-CB and user will be able to see data in ThingsEye. See here for [[ThingsEye Config Instruction>>url:https://wiki.thingseye.io/xwiki/bin/view/Main/]].

317

318

319

== 2.2 Payload Types ==

320

321

322

To meet different server requirement, SW3L-CB supports different payload type.

**Includes:**

* [[General JSON format payload>>||anchor="H2.2.1GeneralJsonFormat28Type3D529"]]. (Type=5)

327

328

* [[HEX format Payload>>||anchor="H2.2.2HEXformatPayload28Type3D029"]]. (Type=0)

329

330

* [[ThingSpeak Format>>||anchor="H2.2.4ThingSpeakPayload28Type3D129"]]. (Type=1)

331

332

* [[ThingsBoard Format>>||anchor="H2.2.3ThingsBoardPayload28Type3D329"]]. (Type=3)

333

334

User can specify the payload type when choose the connection protocol. Example:

335

336

(% style="color:#037691" %)**AT+PRO=1,0** (%%) ~/~/ Use COAP Connection & hex Payload

337

338

(% style="color:#037691" %)**AT+PRO=1,5** (%%) ~/~/ Use COAP Connection & Json Payload

339

340

(% style="color:#037691" %)**AT+PRO=2,0** (%%) ~/~/ Use UDP Connection & hex Payload

341

342

(% style="color:#037691" %)**AT+PRO=2,5** (%%) ~/~/ Use UDP Connection & Json Payload

343

344

(% style="color:#037691" %)**AT+PRO=3,0 ** (%%) ~/~/ Use MQTT Connection & Json Payload

345

346

(% style="color:#037691" %)**AT+PRO=3,1** (%%) ~/~/ Use MQTT Connection & ThingSpeak

347

348

(% style="color:#037691" %)**AT+PRO=3,3 ** (%%) ~/~/ Use MQTT Connection & ThingsBoard

349

350

(% style="color:#037691" %)**AT+PRO=3,5 ** (%%) ~/~/ Use MQTT Connection & Json Payload

351

352

(% style="color:#037691" %)**AT+PRO=4,0** (%%) ~/~/ Use TDP Connection & hex Payload

353

354

(% style="color:#037691" %)**AT+PRO=4,5** (%%) ~/~/ Use TDP Connection & Json Payload

355

356

357

**Since firmware V1.1.0**, (% style="color:#4472c4" %)**IMSI**(%%) has been added to payload.

358

359

The following describes the latest payload.

360

361

(% style="color:red" %)**Note: The default is AT+GPS=0 ~/~/ The GPS function is not enabled. Therefore, the GPS collection time in the following example paylaod does not follow the system time, and the latitude and longitude are 0.**

362

363

364

=== 2.2.1 General Json Format(Type~=5) ===

365

366

367

This is the General Json Format. As below:

368

369

(% style="color:#4472c4" %)**{"IMEI":"868508065605159","IMSI":"454312901015184","Model":"SW3L-CB","alarm:":0,"pulse":231,"water_flow":0.51,"battery":3.210,"signal":23,"time":"2025-04-09T03:26:55Z","latitude":0.000000,"longitude":0.000000,"gps_time":"1970-01-01T00:00:00Z","1":[0.00,"1970-01-01T00:00:03Z"],"2":[0.00,"1970-01-01T00:00:24Z"],"3":[0.01,"2025-04-09T01:52:23Z"],"4":[0.05,"2025-04-09T01:37:23Z"],"5":[0.00,"1970-01-01T00:00:03Z"],"6":[0.00,"1970-01-01T00:00:24Z"],"7":[0.01,"1970-01-01T00:00:02Z"],"8":[0.05,"1970-01-01T00:00:01Z"]}**

370

371

[[image:image-20250409191512-3.png]](% title="Click and drag to resize" %)

372

373

374

(% style="color:red" %)**Notice, from above payload:**

375

376

* Alarm, Pulse, Water_Flow , Battery, Signal, Latitude, Longitude & GPS_Timestamp are the value at uplink time.

377

378

* Json entry 1 ~~ 8 are the last 1 ~~ 8 sampling data as specify by (% style="color:#037691" %)**AT+CLOCKLOG=1,65535,15,8 **(%%)Command. Each entry includes (from left to right): Water Flow, Sampling time.

379

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

380

381

=== 2.2.2 HEX format Payload(Type~=0) ===

382

383

384

This is the HEX Format. As below:

385

386

(% style="color:#4472c4" %)**f862406079156234f4600870233000604f6e0cd41a0000000001c200000000000000000000000000f63e6d67f653bd00f63e6d67f653ab00f63e6d67f6536f00f63e6d67f6533300f63e6d67f6530900f63e6d67f652bb00f63e6d67f6527f00f63e6d67f6524300f63e6d67f65207**

387

388

[[image:image-20250409191144-1.png]](% title="Click and drag to resize" %)(% style="display:none" %)

389

390

391

If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.

392

393

(% title="Click and drag to resize" %)[[image:image-20250409191227-2.png]]

394

395

(% style="color:blue" %)**Device ID(f+IMEI): **(%%)f862406079156234 = 862406079156234

396

397

398

(% style="color:blue" %)**SIM Card ID(f+IMSI): **(%%)f460087023300060 = 460087023300060

399

400

401

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

402

403

These bytes include the hardware and software version.

404

405

(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x4f for SW3L-CB

406

407

(% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x65=101, means firmware version 1.0.1

408

409

410

(% style="color:blue" %)**BAT (Battery Info):**

Ex1: 0x0cd4 = 3284mV

(% style="color:blue" %)**Signal Strength:**

416

417

NB-IoT Network signal Strength.

**Ex1: 0x1a = 26**

**0** -113dBm or less

**1** -111dBm

**2...30** -109dBm... -53dBm

426

427

**31** -51dBm or greater

428

429

**99** Not known or not detectable

430

431

432

(% style="color:blue" %)**PA4: Support digital level input below 3.3V**

433

434

(((

435

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

)))

(((

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

440

441

442

(% style="color:blue" %)**PB15: Support digital level input below 3.3V**

443

444

(((

445

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

)))

(((

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

(((

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

)))

(((

00~-~->Normal uplink.

458

459

01~-~->Water flow abnormal alarm.

460

461

462

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

463

464

(((

465

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

)))

(((

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

)))

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

)))

)))

)))

(((

The calculate flag is a user defined field, total pulse divided by this mark is the converted water flow rate.

)))

(((

(% style="color:#037691" %)**Example:in the default payload:**

)))

* (((

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

489

)))

490

* (((

491

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

492

)))

493

* (((

494

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

)))

(((

Default value: 450.

)))

(((

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

505

506

**Example: **0x015a7886(H)=22706310(D)=22.706150

507

508

509

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

510

511

**Example: **0x06cf341e(H)=114242590(D)=114.242830

)))

(((

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

)))

(((

The total pulse generated by the flow of water passing through the water meter.

)))

(((

**Example:** 0x00f63e6d(H) = 16137837(D)

)))

(% style="color:blue" %)**Timestamp & GPS_Timestamp: **

531

532

Unit Timestamp Example: 66AC833B(H) = 1722581819(D)

533

534

Put the decimal value into this link([[https:~~/~~/www.epochconverter.com)>>https://www.epochconverter.com]]) to get the time.

535

536

537

=== 2.2.3 ThingsBoard Payload(Type~=3) ===

538

539

540

Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.

541

542

(% style="color:#4472c4" %)**{

543

"topic": "CB_PUB",

544

"payload": {

545

"IMEI": "864370064394515",

"Model": "SW3L-CB",

"alarm:": 0,

"pulse": 358,

"water_flow": 0.8,

"battery": 3.574,

"signal": 28,

"latitude": 0.0,

"longitude": 0.0,

"gps_time": "2024-08-02T07:14:24Z",

555

"1": [0.8, "2024-08-02T07:12:42Z"],

556

"2": [0.8, "2024-08-02T06:26:44Z"],

557

"3": [0.8, "2024-08-02T06:11:44Z"],

558

"4": [0.8, "2024-07-31T02:05:27Z"],

559

"5": [0.8, "2024-07-31T01:50:27Z"],

560

"6": [0.8, "2024-07-31T01:35:27Z"],

561

"7": [0.8, "2024-07-31T01:20:27Z"],

562

"8": [0.8, "2024-07-31T01:05:27Z"]

}

}**

[[image:image-20240802152036-3.png||height="640" width="1255"]](% title="Click and drag to resize" %)

567

568

569

=== 2.2.4 ThingSpeak Payload(Type~=1) ===

570

571

572

This payload meets ThingSpeak platform requirement. It includes only 7 fields. Form 1~~7 are:

573

574

Total_pulse, Water_sum, Alarm, Battery, Signal, latitude & longitude. This payload type only valid for ThingsSpeak Platform.

As below:

(% style="color:#4472c4" %)**field1=Total_pulse value&field2=Water_sum value&filed3=Alarm value&filed4=Battery value&field5=Singal value&filed6=Latitude value&field7=Longitude value**

579

580

[[image:image-20240802154430-4.png||height="570" width="867"]]

581

582

[[image:image-20240802154522-7.png||height="572" width="867"]](% title="Click and drag to resize" %)

583

584

585

= 3. Configure SW3L-CB =

586

587

== 3.1 Configure Methods ==

588

589

590

SW3L-CB supports below configure method:

591

592

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

593

594

* 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]].

595

596

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

597

598

== 3.2 Serial Access Password ==

599

600

601

After the Bluetooth or UART connection is successful, use the Serial Access Password to enter the AT command window.

602

603

The label on the box of the node will print the initial password: AT+PIN=**xxxxxx**, and directly use the six-digit password to access the AT instruction window.

604

605

[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-NB%2C-NS_RS485%2CUART_to_NB-IoT_Converter_User_Manual/WebHome/image-20250226165815-1.png?rev=1.1||alt="image-20250226165815-1.png"]]

606

607

608

If you need to change the password, use **AT+PWORD=**xxxxxx (6 characters), -CB nodes only support lowercase letters.

609

610

[[image:image-20240826185721-2.png]]

611

612

613

(% style="color:red" %)**Note: After entering the command, you need to add a line break, and you can also set automatic line breaks in the Bluetooth tool or UART connection tool.**

614

615

[[image:image-20240826185726-3.png]]

616

617

618

== 3.3 AT Commands Set ==

619

620

621

AT+<CMD>? : Help on <CMD>

AT+<CMD> : Run <CMD>

AT+<CMD>=<value> : Set the value

626

627

AT+<CMD>=? : Get the value

628

629

630

(% style="color:blue" %)**General Commands**

AT : Attention

AT? : Short Help

AT+MODEL : Get module information

637

638

ATZ : Trig a reset of the MCU

639

640

AT+DEUI : Get or set the Device ID

641

642

AT+SLEEP : Get or set the sleep status

643

644

AT+DEBUG : Set more info output

645

646

AT+CFG : Print all settings

647

648

AT+SERVADDR: Get or Set the Server address

649

650

AT+TDC : Get or set the application data transmission interval in s

651

652

AT+APN : Get or set the APN

653

654

AT+5VT : Get or Set extend the time of 5V power

655

656

AT+PTRIG : Get or Set Alarm for continuously water flow

657

658

AT+MOD : Get or Set the work mode of device

659

660

AT+CALCFLAG : Get or Set the calculate flag

661

662

AT+SETCNT : Get or set the count at present

663

664

AT+PRO : Get or Set usage agreement (1:COAP,2:UDP,3:MQTT,4:TCP)

665

666

AT+RXDL : Get or Set the receiving time

667

668

AT+GETSENSORVALUE : Returns the current sensor measurement

669

670

AT+DNSCFG : Get or Set DNS Server

671

672

AT+CSQTIME : Get or Set the time to join the network

673

674

AT+GDNS : Get or Set the DNS

675

676

AT+TLSMOD : Get or Set the TLS mode

677

678

AT+IPTYPE : Set the IPv4 or IPv6

679

680

AT+QSW : Power on and power off BG95 module

681

682

AT+CLOCKLOG: Enable or Disable Clock Logging

683

684

AT+TIMESTAMP : Get or Set UNIX timestamp in second

685

686

AT+GETLOG : Print serial port logs

687

688

689

(% style="color:blue" %)**MQTT Management**

690

691

AT+CLIENT : Get or Set the MQTT clientID

692

693

AT+UNAME : Get or Set the MQTT Username

694

695

AT+PWD : Get or Set the MQTT password

696

697

AT+PUBTOPIC: Get or set MQTT publishing topic

698

699

AT+SUBTOPIC: Get or set MQTT subscription topic

700

701

AT+MQOS : Set the QoS level of MQTT

702

703

704

(% style="color:blue" %)**Coap Management**

705

706

AT+URI1: Get or set CoAP option 1

707

708

AT+URI2: Get or set CoAP option 2

709

710

AT+URI3: Get or set CoAP option 3

711

712

AT+URI4: Get or set CoAP option 4

713

714

AT+URI5: Get or set CoAP option 5

715

716

AT+URI6: Get or set CoAP option 6

717

718

AT+URI7: Get or set CoAP option 7

719

720

AT+URI8: Get or set CoAP option 8

721

722

723

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

724

725

AT+GNSST : Extend the time to turn on GNSS

726

727

AT+GPS : Turn off and on GPS

728

729

AT+GTDC : Get or set GPS positioning interval in units of h

730

731

732

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

733

734

AT+PWORD : Get or set the System password

735

736

AT+FDR1 : Reset parameters to factory default values except for passwords

737

738

AT+FDR : Reset Parameters to Factory Default

739

740

AT+CDP : Read or Clear cached data

741

742

AT+LDATA : Get the last upload data

743

744

745

== 3.4 Test Uplink and Change Update Interval ==

746

747

748

By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%)

749

750

User can use below commands to change the (% style="color:blue" %)**uplink interval**.

751

752

(% style="color:#037691" %)**AT+TDC=7200 ** (%%) ~/~/ Set Update Interval to 7200s

753

754

User can also push the button for more than 1 second to activate an uplink.(% title="Click and drag to resize" %)

755

756

757

== 3.5 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-CB didn't see any water flow in 15s, SW3L-CB will consider stop of water flow event.

)))

* (((

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

)))

(((

**Example:** 10 minutes, if SW3L-CB detect a start of water flow event and didn't detect a stop event within Alarm timer, SW3L-CB will send an Alarm to indicate a water flow abnormal alarm.

)))

(((

So for example, If we set stop duration=15s and Alarm Timer=10minutes. If the toilet water flow continuously for more than 10 minutes, Sensor will send an alarm 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 10 minutes.**

)))

(((

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

)))

* (((

AT+PTRIG=15,10 ~-~-> Set Stop duration: 15s, Alarm Timer: 10 minutes.

)))

* (((

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

810

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

811

812

== 3.6 Set Power Output Duration ==

813

814

815

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

816

817

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

818

819

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

820

821

3. final, close the power output.

822

823

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

824

825

(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:461px" %)

826

|=(% 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

827

|(% style="width:172px" %)AT+5VT=?|(% style="width:210px" %)Show 5V open time.|(% style="width:130px" %)0

828

OK

829

|(% style="width:172px" %)AT+5VT=0|(% style="width:210px" %)Normally closed 5V power supply.|(% style="width:130px" %)OK

830

default setting

831

|(% style="width:172px" %)AT+5VT=1000|(% style="width:210px" %)Close after a delay of 1000 milliseconds.|(% style="width:130px" %)(((

OK

)))

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

838

839

== 3.7 Set the calculate flag ==

840

841

842

Feature: Set the calculate flag

843

844

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

845

846

(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:461px" %)

847

|=(% 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**

848

|(% style="width:172px" %)AT+CALCFLAG =450|(% style="width:210px" %)Set the calculate flag to 450.|(% style="width:130px" %)OK

849

|(% style="width:172px" %)AT+CALCFLAG =390|(% style="width:210px" %)Set the calculate flag to 390.|(% style="width:130px" %)OK

850

|(% style="width:172px" %)AT+CALCFLAG =64|(% style="width:210px" %)Set the calculate flag to 64.|(% style="width:130px" %)OK

851

|(% style="width:172px" %)AT+CALCFLAG =12|(% style="width:210px" %)Set the calculate flag to 12.|(% style="width:130px" %)OK

852

853

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

854

855

== 3.8 Set count number ==

856

857

858

Feature: This setting can clear the pulse count to 0 or set it to a custom value.

859

860

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

861

862

(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:479px" %)

863

|=(% 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**

864

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

865

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

866

867

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

868

869

== 3.9 Clock logging ==

870

871

872

Sometimes when we deploy lots of end nodes in field. We want all sensors sample data at the same time, and upload these data together for analyze. In such case, we can use clock loging feature.

873

874

We can use this command to set the start time of data recording and the time interval to meet the requirements of the specific collection time of data.

875

876

* (% style="color:blue" %)**AT Command: AT+CLOCKLOG=a,b,c,d**

877

878

(% style="color:blue" %)**a:**(%%)** 0:** Disable Clock logging. ** 1: **Enable Clock Logging

879

880

(% style="color:blue" %)**b: **(%%)Specify First sampling start second: range **(0 ~~ 3599, 65535) ** ~/~/ (% style="color:red" %)**Note:**(%%)** **If parameter b is set to 65535, the log period starts after the node accesses the network and sends packets.

881

882

(% style="color:blue" %)**c:**(%%)** **Specify the sampling interval: range **(0 ~~ 255 minutes)**

883

884

(% style="color:blue" %)**d: **(%%)How many entries should be uplink on every TDC **(max 32)**

885

886

(% style="color:red" %)**Note: To disable clock recording, set the following parameters: AT+CLOCKLOG=1,65535,0,0**

887

888

(% aria-label="image-20240408084118-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/PS-NB-NA_NB-IoT_Analog_Sensor_User_Manual/WebHome/image-20240408084118-1.png?rev=1.1||alt="image-20240408084118-1.png"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)

**Example:**

**AT+CLOCKLOG=1,65535,1,5**

893

894

After the node sends the first packet, data is recorded to the memory at intervals of 1 minute. For each TDC uplink, the uplink load will include: battery information + the last 5 memory records (payload + timestamp).

895

896

[[image:image-20240802161029-10.png||height="552" width="1042"]](% title="Click and drag to resize" %)

897

898

(% style="color:red" %)**Note: Users need to synchronize the server time before configuring this command. If the server time is not synchronized before this command is configured, the command takes effect only after the node is reset.**

899

900

901

== 3.10 Power on / power off BG95 module ==

902

903

904

This command is used to power on and power off BG95 module.

905

906

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

907

908

The module is powered on after the command is sent for the first time, and powered off after the command is sent again.

909

910

[[image:image-20240802165021-11.png||height="550" width="673"]]

911

912

913

== 3.11 Example Query saved historical records ==

914

915

916

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

917

918

This command can be used to search the saved history, recording up to 32 groups of data, each group of historical data contains a maximum of 100 bytes.

919

920

[[image:image-20240802155043-8.png||height="533" width="677"]](% title="Click and drag to resize" %)

921

922

923

== 3.12 Uplink log query ==

924

925

926

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

927

928

This command can be used to query upstream logs of data packets.

929

930

[[image:image-20240802155114-9.png||height="522" width="667"]]

931

932

933

== 3.13 Set the downlink debugging mode(Since firmware v1.1.0) ==

934

935

936

Feature: Set the conversion between the standard version and 1T version downlinks.

937

938

(% style="color:blue" %)**AT command: AT+DOWNTE**

939

940

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)

941

|=(% style="width: 138px; background-color: rgb(79, 129, 189); color: white;" %)**Command Example**|=(% style="width: 143px; background-color: rgb(79, 129, 189); color: white;" %)**Function/Parameters**|=(% style="width: 229px; background-color: rgb(79, 129, 189); color: white;" %)**Response/Explanation**

942

|(% style="width:134px" %)AT+DOWNTE=?|(% style="width:143px" %)Get current Settings|(% style="width:229px" %)(((

0,0 (default)

OK

)))

|(% colspan="1" rowspan="2" style="width:134px" %)(((

(((

AT+DOWNTE=0,a

)))

(((

)))

)))|(% style="width:143px" %)**0**: Disable downlink debugging|(% style="width:229px" %)(((

959

OK

960

)))

961

|(% style="width:143px" %)**1**: Enable downlink debugging, users can see the original downlink reception.|(% style="width:229px" %)(((

OK

)))

**Example:**

* AT+DOWNTE=0,0 ~/~/ Disable downlink debugging.

968

* AT+DOWNTE=0,1 ~/~/ Enable downlink debugging.

969

970

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

971

972

No downlink commands for feature

973

974

975

== 3.14 Domain name resolution settings(Since firmware v1.1.0) ==

976

977

978

Feature: Set static DNS resolution IP address.

979

980

(% style="color:blue" %)**AT command: AT+BKDNS**

981

982

(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)

983

|=(% style="width: 138px; background-color: rgb(79, 129, 189); color: white;" %)**Command Example**|=(% style="width: 143px; background-color: rgb(79, 129, 189); color: white;" %)**Function/Parameters**|=(% style="width: 229px; background-color: rgb(79, 129, 189); color: white;" %)**Response/Explanation**

984

|(% style="width:134px" %)(((

985

AT+BKDNS=?

986

)))|(% style="width:143px" %)Get current Settings|(% style="width:606px" %)(((

1,0,NULL (default)

OK

)))

|(% colspan="1" rowspan="3" style="width:134px" %)(((

AT+BKDNS=a,b,c

)))|(% style="width:143px" %)(((

999

**a**: Enable/Disable static DNS resolution.

1000

)))|(% style="width:606px" %)(((

1001

**0:** Disable static DNS resolution

1002

1003

**1**: Enable static DNS resolution. The ip address will be saved after the domain name is resolved, if the next domain name resolution fails, the last saved ip address will be used.

1004

)))

1005

|(% style="width:143px" %)**b**: Meaningless.|(% style="width:606px" %)(((

1006

Set to **0**.

1007

)))

1008

|(% style="width:143px" %)(((

1009

**c**: Set the IP address manually.

1010

)))|(% style="width:606px" %)(((

1011

The format is the same as AT+SERVADDR.

1012

If domain name resolution fails, this ip address will be used directly, if domain name resolution succeeds, parameter c will be updated to the successfully resolved IP address.

)))

**Example:**

* AT+BKDNS=0,0,NULL ~/~/Disable static DNS resolution.

1018

* AT+BKDNS=1,0,NULL ~/~/ Enable static DNS resolution.

1019

* AT+BKDNS=1,0,3.69.98.183,1883 ~/~/Enable static DNS resolution, if domain name resolution succeeds, the node uses the ip address successfully resolved and saves it to parameter c. If the domain name resolution fails, use the manually set ip address: 3.69.98.183 for communication.

1020

1021

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

1022

1023

No downlink commands for feature.

1024

1025

1026

= 4. Battery & Power Consumption =

1027

1028

1029

SW3L-CB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.

1030

1031

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

1032

1033

1034

= 5. Firmware update =

1035

1036

1037

User can change device firmware to::

1038

1039

* Update with new features.

* Fix bugs.

Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/scl/fo/1mzflb9p9kx15btnc11gr/AIGCUEsA4e0HBKYgoiyRY3M/SW3L-CB?dl=0&rlkey=ku98jt8u30coqy66saebai2co&subfolder_nav_tracking=1]]**

1044

1045

Methods to Update Firmware:

1046

1047

* (Recommended way) OTA firmware update via BLE: [[**Instruction**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE_Firmware_Update_NB_Sensors_BC660K-GL/]].

1048

1049

* Update through UART TTL interface : **[[Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/UART_Access_for_NB_ST_BC660K-GL/#H4.2UpdateFirmware28Assumethedevicealreadyhaveabootloader29]]**.

1050

1051

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

= 6. FAQ =

== 6.1 How can I access the BG95-NGFF AT Commands? ==

1056

1057

1058

User can access to BG95-NGFF directly and send AT Commands.

1059

1060

[[See BG95-NGFF AT Command set>>https://www.dropbox.com/scl/fo/1mzflb9p9kx15btnc11gr/ALDWTvDjuVoXvDJuYWCRh5U/Vendor%20Datasheet/BG95?dl=0&rlkey=ku98jt8u30coqy66saebai2co&subfolder_nav_tracking=1]]

1061

1062

1063

== 6.2 How to configure the device through the MQTT subscription function? ==

1064

1065

1066

Subscription content: {AT COMMAND}

1067

1068

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

1069

1070

Setting AT+5VT=500 through Node-RED requires MQTT to send the content {AT+5VT=500}.

1071

1072

(% aria-label="image-20231025162946-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/PS-NB-NA_NB-IoT_Analog_Sensor_User_Manual/WebHome/image-20231025162946-2.png?rev=1.1||alt="image-20231025162946-2.png"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)

1073

1074

The serial port displays:

1075

1076

(% aria-label="image-20231025162958-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/PS-NB-NA_NB-IoT_Analog_Sensor_User_Manual/WebHome/image-20231025162958-3.png?rev=1.1||alt="image-20231025162958-3.png"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)

1077

1078

1079

== 6.3 General Manual for -CB , -CS models ==

1080

1081

1082

Users can follow the instructions in this [[link>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Manual%20for%20-CB%20%2C%20-CS%20models/]] to see how to configure to connect to different servers.

1083

1084

1085

== 6.4 Can I connect 3rd party flow sensor other than the default one? ==

1086

1087

1088

If a user wants to connect SW3L-CB to a 3rd party flow sensor such as a [[DN50 flow sensor>>https://valvesdirect.net/product/dn-50-irrigation-solenoid-valve-24vac-2-female-inlet-2-female-outlet-600lpm/]], that is possible. A flow sensor with pulse output is needed.

1089

1090

**Below is the notice for the connection:**

1091

1092

~1. Connect the 3rd party flow meter to the pulse input and GND of SW3L-CB.

1093

1094

2. Make sure the pulse output voltage of 3rd party flow sensor is less than 5v.

1095

1096

3. It is not recommended to use SW3L-CB to power the external flow meter, unless you are sure the external flow sensor is low power ( several uA). Otherwise the battery of SW3L-CB will be running out soon.

**Connection:**

[[image:image-20240918172719-1.jpeg||height="464" width="716"]]

= 7. Order Info =

Part Number: (% style="color:blue" %)**SW3L-CB-XX-YY**

1107

1108

(% style="color:red" %)**XX**(%%):

1109

1110

* (% style="color:#037691" %)**GE**(%%): General version ( Exclude SIM card)

1111

1112

* (% style="color:#037691" %)**1T**(%%): with 1NCE* 10 years 500MB SIM card and Pre-configure to ThingsEye server

1113

1114

(((

1115

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

)))

(((

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

)))

(((

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

)))

(((

* **010:** DW-010 Flow Sensor: diameter: G1”/ DN25. 64 pulse = 1 L

)))

(((

* **020:** DW-020 Flow Sensor: diameter: G2”/ DN50. 12 pulse = 1 L

1132

)))

1133

1134

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

= 8. Packing Info =

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

1140

1141

* SW3L-NB NB-IoT/LTE-M Flow sensor x 1

1142

1143

* External antenna x 1

1144

1145

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

1146

1147

* Device Size: 13.0 x 5 x 4.5 cm

1148

1149

* Device Weight: 150g

1150

1151

* Package Size / pcs : 14.0 x 8x 5 cm

1152

1153

* Weight / pcs : 180g

1154

1155

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

= 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.

1161

1162

* 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-CB -- NB-IoT/LTE-M Flow Sensor User Manual

Applications

Navigation