Wiki source code of SW3L -- LoRaWAN Outdoor Flow Sensor

Last modified by Mengting Qiu on 2025/05/12 15:42

version	line-number	content
75.2	1
	2
50.3	3	(% style="text-align:center" %)
65.1	4	[[image:image-20220519085532-1.png\|\|_mstalt="431171" height="429" width="366"]]
8.5	5
	6
	7
	8
63.2	9
71.21	10	Table of Contents:
8.5	11
50.3	12	{{toc/}}
8.5	13
	14
	15
55.2	16
	17
	18
8.7	19	= 1. Introduction =
8.5	20
46.5	21	== 1.1 What is SW3L LoRaWAN Flow Sensor ==
8.5	22
67.8	23
46.4	24	(((
50.11	25	The Dragino SW3L is a (% style="color:#037691" %)LoRaWAN Flow Sensor(%%). It detects water flow volume and uplink to IoT server via LoRaWAN network. User can use this to (% style="color:#037691" %)monitor the water usage for buildings.(%%)
46.4	26	)))
8.5	27
46.4	28	(((
50.8	29	SW3L is powered by (% style="color:#037691" %)8500mAh Li-SOCI2 battery(%%), It is designed for long term use up to 10 years. (Actually Battery life depends on the use environment, update period.)
46.4	30	)))
8.5	31
46.4	32	(((
50.11	33	The SW3L will send water flow volume every 20 minutes. It can also (% style="color:#037691" %)detect the water flow status(%%) and (% style="color:#037691" %)send Alarm(%%), to avoid the waste for water usage such as broken toilet case.
46.4	34	)))
8.5	35
46.4	36	(((
8.5	37	SW3L is designed for both indoor and outdoor use. It has a weatherproof enclosure and industrial level battery to work in low to high temperatures.
46.4	38	)))
8.5	39
46.4	40	(((
8.5	41	Each SW3L is pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on
46.4	42	)))
8.5	43
46.4	44	(((
48.2	45	*Battery life depends on how often to send data, please see battery analyzer.
46.4	46	)))
8.5	47
50.8	48
8.7	49	== 1.2 Features ==
8.5	50
64.2	51
8.5	52	* LoRaWAN v1.0.3 Class A protocol.
	53	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	54	* Upload water flow volume
	55	* Monitor water waste
	56	* 8500mAh industrial battery(none-rechargeable)
	57	* AT Commands to change parameters
	58	* Uplink on periodically and open/close event
	59	* Datalog feature
	60	* Remote configure parameters via LoRa Downlink
	61	* Firmware upgradable via program port
	62	* Wall Mountable
	63	* Outdoor Use
	64
	65	== 1.3 Installation ==
	66
64.2	67
8.5	68	Each SW3L package is shipped with a flow sensor. Install the flow sensor into water pipe with correct flow direction to start monitoring.
	69
50.9	70
8.5	71	== 1.4 Storage & Operation Temperature ==
	72
64.2	73
8.5	74	-40°C to +85°C
	75
50.9	76
32.4	77	== 1.5 Applications ==
8.5	78
64.2	79
8.5	80	* Flow Sensor application
	81	* Water Control
	82	* Toilet Flow Sensor
	83	* Monitor Waste water
	84
	85	== 1.6 Flow Sensor Spec ==
	86
76.3	87
46.6	88	(((
76.2	89	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
	90	\|=(% 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
76.1	91	\|(% style="width:152px" %)Probe #\|(% style="width:176px" %)DW-004\|(% style="width:173px" %)DW-006\|(% style="width:165px" %)DW-010\|(% style="width:190px" %)DW-020
	92	\|(% style="width:152px" %)Diameter\|(% style="width:176px" %)G1/2" / DN15\|(% style="width:173px" %)G3/4" / DN20\|(% style="width:165px" %)G1" / DN25\|(% style="width:190px" %)G2" / DN50
	93	\|(% style="width:152px" %)Working Range\|(% style="width:176px" %)1~~30L/min\|(% style="width:173px" %)1~~60L/min\|(% style="width:165px" %)2~~100L/min\|(% style="width:190px" %)10~~300L/min
	94	\|(% style="width:152px" %)Measure\|(% style="width:176px" %)450 pulse = 1 L\|(% style="width:173px" %)390 pulse = 1 L\|(% style="width:165px" %)64 pulse = 1 L\|(% style="width:190px" %)12 pulse = 1 L
	95	\|(% style="width:152px" %)Accurancy\|(% style="width:176px" %)±5%\|(% style="width:173px" %)±5%\|(% style="width:165px" %)±5%\|(% style="width:190px" %)±5%
	96	\|(% 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)
	97	\|(% style="width:152px" %)Max Pressure\|(% style="width:176px" %)≤ 1.75Mpa\|(% style="width:173px" %)≤ 1.75Mpa \|(% style="width:165px" %)≤ 1.75Mpa\|(% style="width:190px" %)≤ 1.75Mpa
	98	\|(% style="width:152px" %)Temperature range\|(% style="width:176px" %)<80°C\|(% style="width:173px" %)<80°C\|(% style="width:165px" %)<80°C\|(% style="width:190px" %)<80°C
	99	\|(% 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)
67.4	100	)))
	101
76.3	102
8.7	103	== 1.7 Mechanical ==
8.5	104
64.2	105
65.1	106	[[image:1652922789057-479.png\|\|_mstalt="299312"]]
8.6	107
65.1	108	[[image:1652922797548-885.png\|\|_mstalt="300391"]]
8.6	109
54.19	110
77.4	111	(% style="color:blue" %)004: DW-004 Flow Sensor: diameter: G1/2” / DN15. 450 pulse = 1 L
8.6	112
65.1	113	[[image:image-20220519091350-1.png\|\|_mstalt="429611" height="385" width="722"]]
8.6	114
54.19	115
76.3	116	(% style="color:blue" %)006: DW-006 Flow Sensor: diameter: G3/4” / DN20. 390 pulse = 1 L
54.19	117
65.1	118	[[image:image-20220519091423-2.png\|\|_mstalt="5391646" height="258" width="723"]]
8.6	119
54.19	120
76.3	121	(% style="color:blue" %)010: DW-010 Flow Sensor: diameter: G 1” / DN25. 64 pulse = 1 L
54.19	122
65.1	123	[[image:image-20220519091423-3.png\|\|_mstalt="5391971" height="448" width="724"]]
8.6	124
50.9	125
76.3	126	(% style="color:blue" %)020: DW-020 Flow Sensor: diameter: G 2” / DN50. 12 pulse = 1 L
74.1	127
77.2	128	[[image:image-20240125090604-1.png]]
74.1	129
	130
9.2	131	== 1.8 Pin Definitions and Switch ==
	132
64.2	133
65.1	134	[[image:1652923899427-927.png\|\|_mstalt="299377" height="372" width="723"]]
9.2	135
50.9	136
9.4	137	=== 1.8.1 Pin Definition ===
	138
64.2	139
63.16	140	SW3L is pre-configured to connect to two external wires. The other pins are not used. If user wants to know more about other pins, please refer to the user manual of LSN50v2 at:
9.3	141
66.2	142	[[https:~~/~~/www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0>>https://www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0]]
50.9	143
77.6	144	(% style="color:red" %)Add PA11 digital input and PA12 digital input(Since firmware v1.2.0)
55.7	145
64.2	146
9.4	147	=== 1.8.2 Jumper JP2(Power ON/OFF) ===
9.3	148
64.2	149
9.3	150	Power on Device when putting this jumper.
	151
50.9	152
9.4	153	=== 1.8.3 BOOT MODE / SW1 ===
9.3	154
64.2	155
9.4	156	(((
63.17	157	1) 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.
9.3	158	2) Flash: work mode, the device starts to work and send out console output for further debug
9.4	159	)))
9.3	160
50.10	161
9.4	162	=== 1.8.4 Reset Button ===
	163
64.2	164
9.3	165	Press to reboot the device.
	166
50.10	167
9.4	168	=== 1.8.5 LED ===
	169
64.2	170
9.3	171	It will flash:
77.6	172	1) Boot the device in flash mode
	173	2) Send an uplink packe
9.5	174
50.10	175
17.3	176	= 2. Operation Mode =
9.5	177
	178	== 2.1 How it works? ==
	179
64.2	180
9.6	181	Each SW3L is shipped with a worldwide unique set of OTAA keys. To use SW3L in a LoRaWAN network, user needs to input the OTAA keys in the LoRaWAN network server. So SW3L can join the LoRaWAN network and start to transmit sensor data.
9.5	182
50.49	183
9.5	184	== 2.2 Example to use for LoRaWAN network ==
	185
64.2	186
9.5	187	This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Usages with other LoRaWAN IoT servers are similar.
	188
65.1	189	[[image:1652944563101-603.png\|\|_mstalt="292279" height="321" width="729"]]
9.5	190
66.2	191
48.3	192	* In this use case, the SW3L is connected into water line to measure water flow and send the status to the LoRaWAN server. The SW3L will uplink different types of messages to the LoRaWAN server. See [[Uplink payload>>\|\|anchor="H2.3UplinkPayload"]] for detail.
9.5	193
10.2	194	(((
	195	Assume the DLOS8 is already set to connect to the [[TTN V3 network >>url:https://eu1.cloud.thethings.network]]. We need to add the SW3L device in TTN V3:
64.2	196
	197
10.2	198	)))
9.5	199
10.2	200	(((
63.14	201	(% style="color:blue" %)Step 1(%%): Create a device in TTN V3 with the OTAA keys from SW3L.
10.2	202	)))
9.5	203
10.2	204	(((
	205	Each SW3L is shipped with a sticker with the default device EUI as below:
	206	)))
9.5	207
71.3	208	[[image:image-20230426085254-1.png\|\|height="236" width="508"]]
9.5	209
69.2	210
87.2	211	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
9.5	212
87.2	213	Create the application.
9.5	214
87.2	215	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SAC01L_LoRaWAN_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250423093843-1.png?width=756&height=264&rev=1.1\|\|alt="image-20250423093843-1.png"]]
9.5	216
87.2	217	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1\|\|alt="image-20240907111305-2.png"]]
67.2	218
43.2	219
87.2	220	Add devices to the created Application.
43.2	221
87.2	222	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1\|\|alt="image-20240907111659-3.png"]]
43.2	223
87.2	224	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1\|\|alt="image-20240907111820-5.png"]]
43.2	225
	226
87.2	227	Enter end device specifics manually.
9.5	228
87.2	229	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1\|\|alt="image-20240907112136-6.png"]]
55.8	230
	231
87.2	232	Add DevEUI and AppKey. Customize a platform ID for the device.
9.5	233
87.2	234	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1\|\|alt="image-20240907112427-7.png"]]
	235
	236
	237	(% style="color:blue" %)Step 2(%%): Add decoder.
	238
	239	In TTN, user can add a custom payload so it shows friendly reading.
	240
	241	Click this link to get the decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/]]
	242
	243	Below is TTN screen shot:
	244
	245	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140556-1.png?width=1184&height=488&rev=1.1\|\|alt="image-20241009140556-1.png" height="488" width="1184"]]
	246
	247	[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140603-2.png?width=1168&height=562&rev=1.1\|\|alt="image-20241009140603-2.png"]]
	248
	249
	250	(% style="color:blue" %)Step 3(%%): Power on SW3L
	251
65.1	252	[[image:image-20220519094347-1.png\|\|_mstalt="432549" height="430" width="725"]]
9.5	253
66.2	254
10.2	255	(((
	256	Put the jumper to power on SW3L and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and the user can see it in the panel.
	257	)))
9.5	258
65.1	259	[[image:1652924675638-547.png\|\|_mstalt="298363" height="254" width="732"]]
9.5	260
50.48	261
9.5	262	== 2.3 Uplink Payload ==
	263
64.2	264
44.2	265	(((
9.5	266	Uplink payloads have two types:
44.2	267	)))
9.5	268
44.2	269	* (((
	270	Open/Close Status: Use FPORT=2
	271	)))
	272	* (((
	273	Other control commands: Use other FPORT fields.
	274	)))
9.5	275
44.2	276	(((
9.5	277	The application server should parse the correct value based on FPORT settings.
50.47	278
	279
44.2	280	)))
9.5	281
	282	=== 2.3.1 Device Status, FPORT~=5 ===
	283
64.2	284
11.2	285	(((
44.2	286	(((
11.2	287	Include device configure status. Once SW3L Joined the network, it will uplink this message to the server. After that, SW3L will uplink Device Status every 12 hours.
	288	)))
44.2	289	)))
9.5	290
11.2	291	(((
44.2	292	(((
11.2	293	Users can also use the downlink command(0x26 01) to ask SW3L to resend this uplink. This uplink payload also includes the DeviceTimeReq to get time.
51.2	294
75.3	295	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
75.4	296	\|(% colspan="6" style="background-color:#4f81bd; color:white" %)Device Status (FPORT=5)
71.7	297	\|(% style="width:103px" %)Size (bytes)\|(% style="width:72px" %)1\|2\|(% style="width:91px" %)1\|(% style="width:86px" %)1\|(% style="width:44px" %)2
75.2	298	\|(% style="width:103px" %)Value\|(% style="width:72px" %)Sensor Model\|Firmware Version\|(% style="width:91px" %)Frequency Band\|(% style="width:86px" %)Sub-band\|(% style="width:44px" %)BAT
11.2	299	)))
44.2	300	)))
9.5	301
	302
	303	Example parse in TTNv3
	304
65.1	305	[[image:1652925144491-755.png\|\|_mstalt="296296" height="139" width="732"]]
9.5	306
63.14	307	* (% style="color:#037691" %)Sensor Model(%%): For SW3L, this value is 0x11
9.5	308
63.14	309	* (% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
9.5	310
63.14	311	* (% style="color:#037691" %)Frequency Band(%%):
9.5	312
	313	*0x01: EU868
13.2	314
9.5	315	*0x02: US915
13.2	316
9.5	317	*0x03: IN865
13.2	318
9.5	319	*0x04: AU915
13.2	320
9.5	321	*0x05: KZ865
13.2	322
9.5	323	*0x06: RU864
13.2	324
9.5	325	*0x07: AS923
13.2	326
9.5	327	*0x08: AS923-1
13.2	328
9.5	329	*0x09: AS923-2
13.2	330
9.5	331	*0x0a: AS923-3
13.2	332
9.5	333	*0x0b: CN470
13.2	334
9.5	335	*0x0c: EU433
13.2	336
9.5	337	*0x0d: KR920
13.2	338
9.5	339	*0x0e: MA869
	340
	341	* (((
63.14	342	(% style="color:#037691" %)Sub-Band:
9.5	343
	344	* AU915 and US915:value 0x00 ~~ 0x08
	345	* CN470: value 0x0B ~~ 0x0C
	346	* Other Bands: Always 0x00
51.3	347
	348
9.5	349	)))
	350
63.14	351	* (% style="color:#037691" %)Battery Info:
9.5	352
	353	Check the battery voltage.
	354
	355	Ex1: 0x0B45 = 2885mV
	356
	357	Ex2: 0x0B49 = 2889mV
	358
50.46	359
9.5	360	=== 2.3.2 Sensor Configuration, FPORT~=4 ===
	361
64.2	362
13.2	363	SW3L will only send this command after getting the downlink command (0x26 02) from the server.
9.5	364
75.3	365	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
75.4	366	\|(% 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
71.22	367	\|Value\|(% style="width:104px" %)TDC(unit:sec)\|(% style="width:43px" %)N/A\|(% style="width:91px" %)Stop Timer\|(% style="width:100px" %)Alarm Timer\|(% style="width:69px" %)Reserve
71.7	368
63.14	369	* (% style="color:#037691" %)TDC: (default: 0x0004B0)
9.5	370
13.2	371	Uplink interval for the total pulse count, default value is 0x0004B0 which is 1200 seconds = 20 minutes.
9.5	372
52.2	373
63.14	374	* (% style="color:#037691" %)STOP Duration & Alarm Timer
9.5	375
48.4	376	Shows the configure value of [[Alarm for continuously water flow>>\|\|anchor="H3.4Alarmforcontinuouslywaterflow"]]
9.5	377
65.1	378	[[image:image-20220519095747-2.png\|\|_mstalt="434460" height="113" width="723"]]
9.5	379
50.45	380
17.4	381	=== 2.3.3 Water Flow Value, Uplink FPORT~=2 ===
9.5	382
64.2	383
17.2	384	(((
	385	SW3L will send this uplink after Device Status once join the LoRaWAN network successfully. And SW3L will:
	386	)))
9.5	387
17.2	388	(((
48.4	389	periodically send this uplink every 20 minutes, this interval [[can be changed>>\|\|anchor="H3.1SetTransmitIntervalTime"]].
17.2	390	)))
9.5	391
17.2	392	(((
9.5	393	Uplink Payload totals 11 bytes.
17.2	394	)))
9.5	395
75.3	396	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
	397	\|=(% colspan="6" style="width: 510px;background-color:#4F81BD;color:white" %)Water Flow Value, FPORT=2
67.9	398	\|(% style="width:60px" %)Size(bytes)\|(% style="width:130px" %)1\|(% style="width:130px" %)4\|(% style="width:30px" %)1\|(% style="width:50px" %)1\|(% style="width:80px" %)4
75.4	399	\|(% style="width:110px" %)Value\|(% style="width:81px" %)Calculate Flag & [[Alarm>>\|\|anchor="H3.4Alarmforcontinuouslywaterflow"]]\|(% style="width:95px" %)(((
17.2	400	Total pulse Or Last Pulse
52.3	401	)))\|(% style="width:55px" %)MOD\|(% style="width:115px" %)Reserve(0x01)\|(% style="width:129px" %)[[Unix TimeStamp>>\|\|anchor="H2.4.1UnixTimeStamp"]]
9.5	402
75.3	403	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:470px" %)
	404	\|=(% colspan="4" style="width: 470px;background-color:#4F81BD;color:white" %)Status & Alarm field
67.10	405	\|(% style="width:60px" %)Size(bit)\|(% style="width:80px" %)6\|(% style="width:310px" %)1\|(% style="width:20px" %)1
75.4	406	\|(% style="width:88px" %)Value\|(% style="width:117px" %)Calculate Flag\|(% style="width:221px" %)Alarm: 0: No Alarm; 1: Alarm\|(% style="width:64px" %)N/A
9.5	407
65.1	408	[[image:image-20220519095946-3.png\|\|_mstalt="435110" height="284" width="736"]]
17.2	409
52.4	410
17.5	411	* (((
63.14	412	(% style="color:#037691" %)Calculate Flag
17.5	413	)))
9.5	414
17.5	415	(((
67.1	416	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.
17.5	417	)))
9.5	418
17.5	419	(((
17.3	420	Example: in the default payload:
17.5	421	)))
9.5	422
74.1	423	(((
	424	* calculate flag=0: for SW3L-004 Flow Sensor: 450 pulse = 1 L
	425	* calculate flag=1: for SW3L-006 Flow Sensor: 390 pulse = 1 L
	426	* calculate flag=2: for SW3L-010 Flow Sensor: 64 pulse = 1 L
79.1	427
	428	(% style="color:red" %)Note: At present, the calculation flag can only be set to 0~~2, and probe types other than this can directly calculate water flow using different decoding.
17.5	429	)))
17.2	430
17.5	431	(((
9.5	432	Default value: 0.
17.5	433	)))
9.5	434
17.5	435	(((
9.5	436	Range (6 bits): (b)000000 ~~ (b) 111111
67.1	437
	438	If user use with a meter for example is 0.02L/pulse. To proper decode the correct value in server,
	439
	440	1) User can set the Calculate Flag of this sensor to 3.
	441
	442	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.
17.5	443	)))
9.5	444
17.5	445	(((
48.4	446	(% 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="H3.6Setthecalculateflag"]]
52.4	447
	448
17.5	449	)))
9.5	450
17.5	451	* (((
63.14	452	(% style="color:#037691" %)Alarm
17.5	453	)))
9.5	454
17.5	455	(((
71.19	456	See [[Alarm for continuously water flow>>\|\|anchor="H3.4Alarmforcontinuouslywaterflow"]]
17.5	457	)))
9.5	458
65.1	459	[[image:image-20220519095946-4.png\|\|_mstalt="435474" height="65" width="724"]]
17.2	460
52.4	461
17.5	462	* (((
63.14	463	(% style="color:#037691" %)Total pulse
17.5	464	)))
9.5	465
17.5	466	(((
17.2	467	Total pulse/counting since factory
17.5	468	)))
9.5	469
17.5	470	(((
17.2	471	Range (4 Bytes) : 0x00000000~~ 0xFFFFFFFF .
52.4	472
	473
17.5	474	)))
9.5	475
17.5	476	* (((
63.14	477	(% style="color:#037691" %)Last Pulse
17.5	478	)))
9.5	479
17.5	480	(((
17.2	481	Total pulse since last FPORT=2 uplink. (Default 20 minutes)
17.5	482	)))
9.5	483
17.5	484	(((
17.2	485	Range (4 Bytes) : 0x00000000~~ 0xFFFFFFFF .
52.4	486
	487
17.5	488	)))
9.5	489
17.5	490	* (((
63.14	491	(% style="color:#037691" %)MOD: Default =0
17.5	492	)))
17.2	493
17.5	494	(((
17.3	495	MOD=0 ~-~-> Uplink Total Pulse since factory
17.5	496	)))
17.2	497
17.5	498	(((
17.3	499	MOD=1 ~-~-> Uplink total pulse since last FPORT=2 uplink.
52.4	500
	501
17.5	502	)))
17.2	503
17.5	504	* (((
63.14	505	(% style="color:#037691" %)Water Flow Value
66.2	506
	507
	508
17.5	509	)))
17.2	510
17.5	511	(((
66.2	512	Total Water Flow Volume = (Calculate Flag) x (Total Pulse)=9597/450=21.3L
	513
	514
17.5	515	)))
17.2	516
65.1	517	[[image:image-20220519095946-5.png\|\|_mstalt="435838" height="50" width="727"]]
17.2	518
52.4	519
66.2	520
17.5	521	(((
66.2	522	Total Water Flow for TDC timer = (Calculate Flag) x (Last Pulse)=79/450=0.2L
	523
	524
17.5	525	)))
17.2	526
65.1	527	[[image:image-20220519095946-6.png\|\|_mstalt="436202" height="43" width="733"]]
17.2	528
50.44	529
19.2	530	=== 2.3.4 Historical Water Flow Status, FPORT~=3 ===
9.5	531
64.2	532
19.2	533	(((
63.17	534	SW3L stores sensor values and users can retrieve these history values via the [[downlink command>>\|\|anchor="H2.4DatalogFeature"]].
19.2	535	)))
9.5	536
19.2	537	(((
	538	The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time water flow status.
	539	)))
9.5	540
19.2	541	* (((
48.4	542	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.
19.2	543	)))
9.5	544
19.2	545	(((
9.5	546	For example, in the US915 band, the max payload for different DR is:
19.2	547	)))
9.5	548
19.2	549	(((
67.2	550	a) DR0: max is 11 bytes so one entry of data
19.2	551	)))
9.5	552
19.2	553	(((
67.2	554	b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
19.2	555	)))
9.5	556
19.2	557	(((
67.2	558	c) DR2: total payload includes 11 entries of data
19.2	559	)))
9.5	560
19.2	561	(((
67.2	562	d) DR3: total payload includes 22 entries of data.
19.2	563	)))
9.5	564
19.2	565	(((
67.2	566	If SW3L doesn't have any data in the polling time. It will uplink 11 bytes of 0
52.6	567
	568
19.2	569	)))
9.5	570
19.2	571	(((
52.7	572	(% style="color:#037691" %)Downlink:
19.2	573	)))
9.5	574
19.2	575	(((
	576	0x31 62 46 B1 F0 62 46 B3 94 07
	577	)))
9.5	578
65.1	579	[[image:1652926690850-712.png\|\|_mstalt="295178" height="115" width="726"]]
9.5	580
52.6	581
19.2	582	(((
52.7	583	(% style="color:#037691" %)Uplink:
19.2	584	)))
9.5	585
19.2	586	(((
	587	00 00 01 00 00 00 00 62 46 B2 26 00 00 01 00 00 00 00 62 46 B2 5D 00 00 01 00 00 00 00 62 46 B2 99 00 00 01 00 00 00 00 62 46 B2 D5 00 00 01 00 00 01 15 62 46 B3 11 00 00 01 00 00 01 1F 62 46 B3 7E
52.6	588
	589
19.2	590	)))
9.5	591
19.2	592	(((
52.7	593	(% style="color:#037691" %)Parsed Value:
19.2	594	)))
9.5	595
19.2	596	(((
	597	[Alarm, Calculate Flag, MOD, Total pulse or Last Pulse, Water Flow Value, TIME]
	598	)))
9.5	599
19.2	600	(((
	601
	602	)))
9.5	603
19.2	604	(((
	605	[FALSE,0,0,0,0.0,2022-04-01 08:04:54],
	606	)))
9.5	607
19.2	608	(((
	609	[FALSE,0,0,0,0.0,2022-04-01 08:05:49],
	610	)))
9.5	611
19.2	612	(((
	613	[FALSE,0,0,0,0.0,2022-04-01 08:06:49],
	614	)))
9.5	615
19.2	616	(((
	617	[FALSE,0,0,0,0.0,2022-04-01 08:07:49],
	618	)))
9.5	619
19.2	620	(((
	621	[FALSE,0,0,277,0.6,2022-04-01 08:08:49],
	622	)))
9.5	623
19.2	624	(((
	625	[FALSE,0,0,287,0.6,2022-04-01 08:10:38],
66.2	626
	627
19.2	628	)))
9.5	629
65.1	630	[[image:1652926777796-267.png\|\|_mstalt="300183" height="279" width="724"]]
9.5	631
	632
	633	== 2.4 Datalog Feature ==
	634
64.2	635
9.5	636	When a user wants to retrieve sensor value, he can send a poll command from the IoT platform to ask the sensor to send value in the required time slot.
	637
50.43	638
9.5	639	=== 2.4.1 Unix TimeStamp ===
	640
64.2	641
21.2	642	SW3L uses Unix TimeStamp format based on
9.5	643
65.1	644	[[image:1652926852443-847.png\|\|_mstalt="297427" height="112" width="724"]]
9.5	645
	646	Users can get this time from the link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
	647
	648	Below is the converter example
	649
65.1	650	[[image:1652926913271-611.png\|\|_mstalt="293605" height="421" width="720"]]
9.5	651
55.13	652
9.5	653	=== 2.4.2 Set Device Time ===
	654
50.14	655
21.2	656	(% style="color:#4f81bd" %)Through LoRaWAN MAC Command
9.5	657
21.2	658	(((
48.4	659	Once SW3L Joined the LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to SW3L. If SW3L fails to get the time from the server, SW3L will use the internal time and wait for the next time request ~[[[via Device Status (FPORT=5)>>\|\|anchor="H2.3.1DeviceStatus2CFPORT3D5"]]].
66.2	660
	661
21.2	662	)))
9.5	663
21.2	664	(((
66.2	665	(% style="color:red" %)Note: LoRaWAN Server needs to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature.
50.42	666
	667
21.2	668	)))
9.5	669
	670	=== 2.4.3 Poll sensor value ===
	671
64.2	672
9.5	673	Users can poll sensor values based on timestamps. Below is the downlink command.
	674
75.3	675	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:459px" %)
	676	\|=(% colspan="4" style="width: 456px;background-color:#4F81BD;color:white" %)Downlink Command to poll Open/Close status (0x31)
21.3	677	\|(% style="width:62px" %)1byte\|(% style="width:137px" %)4bytes\|(% style="width:136px" %)4bytes\|(% style="width:120px" %)1byte
	678	\|(% style="width:62px" %)31\|(% style="width:137px" %)Timestamp start\|(% style="width:136px" %)Timestamp end\|(% style="width:120px" %)Uplink Interval
9.5	679
45.3	680	(((
9.5	681	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.
45.3	682	)))
9.5	683
45.3	684	(((
65.1	685	For example, downlink command[[image:image-20220519152849-5.png\|\|_mstalt="434772"]]
45.3	686	)))
9.5	687
45.3	688	(((
66.2	689	Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
45.3	690	)))
9.5	691
45.3	692	(((
9.5	693	Uplink Internal =5s，means CPL01 will send one packet every 5s. range 5~~255s.
50.41	694
	695
45.3	696	)))
9.5	697
	698	=== 2.4.4 Decoder in TTN V3 ===
	699
64.2	700
65.1	701	[[image:1652927365661-475.png\|\|_mstalt="297089" height="359" width="723"]]
9.5	702
67.6	703	Please check the decoder from this link: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
9.5	704
	705
55.10	706	== 2.5 Show data on Datacake ==
9.5	707
64.2	708
32.3	709	(((
9.5	710	Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
32.3	711	)))
9.5	712
32.3	713	(((
66.2	714	(% style="color:blue" %)Step 1(%%): Link TTNv3 to Datacake [[https:~~/~~/docs.datacake.de/lorawan/lns/thethingsindustries#create-integration-on-tti>>url:https://docs.datacake.de/lorawan/lns/thethingsindustries#create-integration-on-tti]]
32.3	715	)))
9.5	716
32.3	717	(((
66.2	718	(% style="color:blue" %)Step 2(%%): Configure SW3L in Datacake
67.6	719
	720
32.3	721	)))
9.5	722
65.1	723	[[image:image-20220519103234-7.png\|\|_mstalt="430482" height="562" width="492"]]
9.5	724
67.6	725
65.1	726	[[image:image-20220519103234-8.png\|\|_mstalt="430846" height="550" width="549"]]
9.5	727
67.6	728
65.1	729	[[image:image-20220519103234-9.png\|\|_mstalt="431210" height="493" width="666"]]
9.5	730
67.6	731
65.1	732	[[image:image-20220519103234-10.png\|\|_mstalt="451217" height="234" width="724"]]
9.5	733
67.6	734
65.1	735	[[image:image-20220519103234-11.png\|\|_mstalt="451594" height="386" width="727"]]
9.5	736
67.6	737
65.1	738	[[image:image-20220519103234-12.png\|\|_mstalt="451971" height="262" width="728"]]
9.5	739
67.6	740
65.1	741	[[image:image-20220519103234-13.png\|\|_mstalt="452348" height="216" width="727"]]
9.5	742
67.6	743
65.1	744	[[image:image-20220519103234-14.png\|\|_mstalt="452725" height="464" width="722"]]
9.5	745
67.6	746
65.1	747	[[image:image-20220519103234-15.png\|\|_mstalt="453102" height="488" width="725"]]
9.5	748
67.6	749
65.1	750	[[image:image-20220519103234-16.png\|\|_mstalt="453479" height="407" width="722"]]
32.4	751
50.39	752
32.4	753	= 3. Configure SW3L via AT Command or LoRaWAN Downlink =
	754
64.2	755
32.4	756	Use can configure SW3L via AT Command or LoRaWAN Downlink.
	757
50.15	758	* AT Command Connection: See [[FAQ>>\|\|anchor="H5.FAQ"]].
50.17	759	* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
32.4	760
	761	There are two kinds of commands to configure SW3L, they are:
	762
50.18	763
32.4	764	* (% style="color:#4f81bd" %)General Commands.
	765
	766	These commands are to configure:
	767
	768	* General system settings like uplink interval.
	769	* LoRaWAN protocol & radio related command.
	770
55.12	771	They are the same for all Dragino Devices which support DLWS-005 LoRaWAN Stack(Note~~). These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
32.4	772
	773
	774	* (% style="color:#4f81bd" %)Commands special design for SW3L
	775
	776	These commands are only valid for SW3L, as below:
	777
50.18	778
32.4	779	== 3.1 Set Transmit Interval Time ==
	780
64.2	781
32.4	782	Feature: Change LoRaWAN End Node Transmit Interval.
	783
64.2	784
54.8	785	(% style="color:#4f81bd" %)AT Command: AT+TDC
32.4	786
75.3	787	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
	788	\|=(% style="width: 160px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 140px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 210px;background-color:#4F81BD;color:white" %)Response
71.13	789	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	790	30000
	791	OK
	792	the interval is 30000ms = 30s
	793	)))
	794	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	795	OK
	796	Set transmit interval to 60000ms = 60 seconds
	797	)))
32.4	798
	799	(% style="color:#4f81bd" %)Downlink Command: 0x01
	800
	801	Format: Command Code (0x01) followed by 3 bytes time value.
	802
66.3	803	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
32.4	804
67.2	805	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	806	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
32.4	807
	808	== 3.2 Set Password ==
	809
64.2	810
32.4	811	Feature: Set device password, max 9 digits
	812
64.2	813
54.8	814	(% style="color:#4f81bd" %)AT Command: AT+PWORD
32.4	815
75.3	816	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:405px" %)
	817	\|=(% style="width: 170px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 124px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 110px;background-color:#4F81BD;color:white" %)Response
71.13	818	\|(% style="width:170px" %)(((
	819	AT+PWORD=?
	820	)))\|(% style="width:123px" %)(((
	821	Show password
	822	)))\|(% style="width:109px" %)(((
32.4	823	(((
	824	123456
	825	)))
	826
	827	(((
	828	OK
	829	)))
	830	)))
71.13	831	\|(% style="width:170px" %)(((
	832	AT+PWORD=999999
	833	)))\|(% style="width:123px" %)(((
	834	Set password
	835	)))\|(% style="width:109px" %)(((
32.4	836	OK
	837	)))
	838
	839	(% style="color:#4f81bd" %)Downlink Command:
	840
	841	No downlink command for this feature.
	842
50.38	843
32.4	844	== 3.3 Quit AT Command ==
	845
64.2	846
32.4	847	(((
	848	Feature: Quit AT Command mode, so user needs to input the password again before using AT Commands.
54.8	849	(% style="color:#4f81bd" %)AT Command: AT+DISAT
32.4	850	)))
	851
75.3	852	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:452px" %)
	853	\|=(% style="width: 155px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 198px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 99px;background-color:#4F81BD;color:white" %)Response
71.13	854	\|(% style="width:155px" %)AT+DISAT\|(% style="width:198px" %)Quit AT Commands mode\|(% style="width:96px" %)OK
32.4	855
	856	(% style="color:#4f81bd" %)Downlink Command:
	857
	858	No downlink command for this feature.
	859
50.37	860
32.5	861	== 3.4 Alarm for continuously water flow ==
32.4	862
64.2	863
32.5	864	(((
	865	This feature is to monitor and send Alarm for continuously water flow.
	866	)))
32.4	867
32.5	868	(((
67.2	869	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.
32.5	870	)))
32.4	871
32.5	872	(((
	873	To monitor this faulty and send alarm, there are two settings:
	874	)))
32.4	875
32.5	876	* (((
63.14	877	(% style="color:#4f81bd" %)Stop Duration: Unit: Second
32.5	878	)))
32.4	879
32.5	880	(((
67.2	881	Default: 15s, If SW3L didn't see any water flow in 15s, SW3L will consider stop of water flow event.
32.5	882	)))
32.4	883
32.5	884	* (((
63.14	885	(% style="color:#4f81bd" %)Alarm Timer: Units: Minute; Default 0 minutes (means Alarm disable)
32.5	886	)))
32.4	887
32.5	888	(((
53.3	889
	890
67.2	891	Example: 3 minutes, if SW3L detect a start of water flow event and didn't detect a stop event within Alarm timer, SW3L will send an Alarm to indicate a water flow abnormal alarm.
32.5	892	)))
32.4	893
32.5	894	(((
	895	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.
	896	)))
32.4	897
32.5	898	(((
64.2	899	(% 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.
53.3	900
	901
32.5	902	)))
32.4	903
32.5	904	(((
	905	(% style="color:#4f81bd" %)AT Command(%%) to configure:
	906	)))
32.4	907
32.5	908	* (((
	909	AT+PTRIG=15,3 ~-~-> Set Stop duration: 15s, Alarm Timer: 3 minutes.
	910	)))
	911	* (((
	912	AT+ PTRIG=15,0 ~-~-> Default Value, disable water waste Alarm.
	913	)))
32.4	914
32.5	915	(((
53.3	916
	917
32.5	918	(% style="color:#4f81bd" %)Downlink Command(%%) to configure:
	919	)))
32.4	920
32.5	921	(((
67.2	922	Command: 0xAA aa bb cc
32.5	923	)))
32.4	924
32.5	925	(((
	926	AA: Command Type Code
	927	)))
32.4	928
32.5	929	(((
	930	aa: Stop duration
	931	)))
32.4	932
32.5	933	(((
	934	bb cc: Alarm Timer
	935	)))
32.4	936
32.5	937	(((
	938	If user send 0xAA 0F 00 03: equal to AT+PTRIG=15,3
	939	)))
32.4	940
54.6	941
32.6	942	== 3.5 Clear Flash Record ==
32.4	943
64.3	944
32.4	945	Feature: Clear flash storage for data log feature.
	946
64.3	947
54.8	948	(% style="color:#4f81bd" %)AT Command: AT+CLRDTA
32.4	949
75.3	950	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
	951	\|=(% style="width: 156px; background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 177px; background-color:#4F81BD;color:white" %)Function\|=(% style="width: 177px; background-color:#4F81BD;color:white" %)Response
71.13	952	\|(% style="width:154px" %)AT+CLRDTA\|(% style="width:177px" %)Clear flash storage for data log feature.\|(% style="width:177px" %)Clear all stored sensor data... OK
32.4	953
32.6	954	(% style="color:#4f81bd" %)Downlink Command:
32.4	955
67.2	956	* Example: 0xA301 ~/~/ Same as AT+CLRDTA
32.4	957
32.7	958	== 3.6 Set the calculate flag ==
32.4	959
64.3	960
32.4	961	Feature: Set the calculate flag
	962
64.3	963
54.8	964	(% style="color:#4f81bd" %)AT Command: AT+CALCFLAG
32.4	965
75.3	966	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:462px" %)
	967	\|=(% style="width: 161px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 204px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 97px;background-color:#4F81BD;color:white" %)Response
70.1	968	\|(% style="width:161px" %)AT+CALCFLAG=1\|(% style="width:202px" %)Set the calculate flag to 1.\|(% style="width:95px" %)OK
	969	\|(% style="width:161px" %)AT+CALCFLAG=2\|(% style="width:202px" %)Set the calculate flag to 2.\|(% style="width:95px" %)OK
32.4	970
32.7	971	(% style="color:#4f81bd" %)Downlink Command:
32.4	972
71.1	973	* Example: 0XA501 ~/~/ Same as AT+CALCFLAG=1
32.4	974
78.1	975	== (% data-sider-select-id="e738628a-6dac-4911-8e57-1c07617a3bde" %)3.7 Set count number(%%) ==
32.4	976
64.3	977
32.4	978	Feature: Manually set the count number
	979
64.3	980
54.8	981	(% style="color:#4f81bd" %)AT Command: AT+SETCNT
32.4	982
75.3	983	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:481px" %)
	984	\|=(% style="width: 162px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 224px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 95px;background-color:#4F81BD;color:white" %)Response
71.1	985	\|(% style="width:162px" %)AT+SETCNT=0\|(% style="width:222px" %)Set the count number to 0.\|(% style="width:93px" %)OK
	986	\|(% style="width:162px" %)AT+SETCNT=100\|(% style="width:222px" %)Set the count number to 100.\|(% style="width:93px" %)OK
32.4	987
32.8	988	(% style="color:#4f81bd" %)Downlink Command:
32.4	989
71.1	990	* Example: 0xA600000001 ~/~/ Same as AT+SETCNT=1
	991	* Example: 0xA600000064 ~/~/ Same as AT+SETCNT=100
32.10	992
92.1	993	== 3.8 Set count mode ==
32.10	994
64.3	995
90.1	996	Feature: Manually set the count mode.
32.10	997
64.3	998
54.8	999	(% style="color:#4f81bd" %)AT Command: AT+MOD
32.10	1000
75.3	1001	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:463px" %)
	1002	\|=(% 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
91.1	1003	\|(% style="width:162px" %)AT+MOD=0\|(% style="width:191px" %)Accumulative (Default)\|(% style="width:106px" %)OK
	1004	\|(% style="width:162px" %)AT+MOD=1\|(% style="width:191px" %)Reset after uplink.\|(% style="width:106px" %)OK
32.10	1005
	1006	(% style="color:#4f81bd" %)Downlink Command:
	1007
71.1	1008	* Example: 0x0A00 ~/~/ Same as AT+MOD=0
	1009	* Example: 0x0A01 ~/~/ Same as AT+MOD=1
32.10	1010
89.1	1011
68.3	1012	= 4. Battery & Power Consumption =
32.11	1013
	1014
68.3	1015	SW3L uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
64.3	1016
68.3	1017	[[Battery Info & Power Consumption Analyze>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
32.11	1018
	1019
32.12	1020	= 5. FAQ =
	1021
	1022	== 5.1 How to use AT Command to configure SW3 ==
	1023
64.3	1024
32.12	1025	SW3L UART connection photo
	1026
65.1	1027	[[image:1652943554687-149.png\|\|_mstalt="298155" height="354" width="724"]]
32.12	1028
50.25	1029
35.3	1030	(((
32.12	1031	In the PC, you need to set the serial baud rate to (% style="color:green" %)9600(%%) to access the serial console for LSN50. LSN50 will output system info once power on as below:
35.3	1032	)))
32.12	1033
65.1	1034	[[image:1652943563580-704.png\|\|_mstalt="295191" height="504" width="720"]]
32.12	1035
50.26	1036
32.12	1037	== 5.2 How to upgrade the firmware? ==
	1038
64.3	1039
35.4	1040	(((
32.12	1041	A new firmware might be available for:
35.4	1042	)))
32.12	1043
35.4	1044	* (((
	1045	Support new features
	1046	)))
	1047	* (((
	1048	For bug fix
	1049	)))
	1050	* (((
	1051	Change LoRaWAN bands.
	1052	)))
32.12	1053
35.4	1054	(((
65.1	1055	Instruction for how to upgrade: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome\|\|anchor="H2.HardwareUpgradeMethodSupportList" _mstmutation="1"]]
35.4	1056	)))
32.12	1057
35.4	1058	(((
66.3	1059	Firmware location: [[https:~~/~~/www.dropbox.com/sh/jktldt8q674i87l/AADqk1zoUEekCjDR_4ic2Tg0a?dl=0>>https://www.dropbox.com/sh/jktldt8q674i87l/AADqk1zoUEekCjDR_4ic2Tg0a?dl=0]]
35.4	1060	)))
32.12	1061
	1062
	1063	== 5.3 How to change the LoRa Frequency Bands/Region? ==
	1064
64.3	1065
61.1	1066	Users can follow the introduction for how to upgrade images. When downloading the images, choose the required image file for download.
50.29	1067
61.1	1068
62.1	1069	== 5.4 Can I connect 3rd party flow sensor other than the default one? ==
61.1	1070
64.3	1071
67.11	1072	If a user wants to connect SW3L to a 3rd party flow sensor such as a [[DN50 flow sensor>>https://valvesdirect.net/product/flow-sensor-2-inch-15-400lpm/]], that is possible. A flow sensor with pulse output is needed.
61.1	1073
67.11	1074	(% style="background-color:yellow" %)Below is the notice for the connection:
61.1	1075
67.11	1076	~1. Connect the 3rd party flow meter to the pulse input and GND of SW3L.
	1077
	1078	2. Make sure the pulse output voltage of 3rd party flow sensor is less than 5v.
	1079
	1080	3. It is not recommended to use SW3L to power the external flow meter, unless you are sure the external flow sensor is low power ( several uA). Otherwise the battery of SW3L will be running out soon.
	1081
	1082	4. After connection, user needs to set the [[Calculator Flag and change the payload>>\|\|anchor="H2.3.3A0WaterFlowValue2CUplinkFPORT3D2"]] so to get the correct reading in the platform.
	1083
82.1	1084	Connection:
67.11	1085
82.1	1086	[[image:image-20240918182813-2.jpeg\|\|height="487" width="697"]]
64.4	1087
61.1	1088
87.1	1089	== 5.5 What can I do if error in Flash Write operation is displayed on the serial port? ==
82.1	1090
87.1	1091
	1092	When the STM32 module is running, sometimes there is no uplink data (FPORT=2). When we use the serial port to view the printing information, we will find that the serial port is printed as "error in Flash Write operation".
	1093
	1094	Example:
	1095
	1096	[[image:image-20250217163534-3.png\|\|height="418" width="1068"]]
	1097
	1098	[[image:image-20250217163128-1.png\|\|height="604" width="822"]]
	1099
	1100	The device will reset continuously, and we can use the AT+CLRDTA command to clear all stored sensor data. Then restart the device and the device will return to normal.
	1101
	1102	[[image:image-20250217163301-2.png]]
	1103
	1104	[[image:image-20250217164119-4.png\|\|height="442" width="1135"]]
	1105
	1106
34.3	1107	= 6. Order Info =
	1108
64.3	1109
67.12	1110	Part Number: (% style="color:#4f81bd" %)SW3L-XXX-YYY
34.3	1111
67.12	1112	(% style="color:#4f81bd" %)XXX(%%): The default frequency band
34.3	1113
74.3	1114	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1115	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1116	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1117	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1118	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1119	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1120	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
74.2	1121	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
64.3	1122
34.4	1123	(((
34.3	1124	(% style="color:#4f81bd" %)YYY(%%): Flow Sensor Model:
34.4	1125	)))
34.3	1126
74.2	1127	* 004: DW-004 Flow Sensor: diameter: G1/2” / DN15. 450 pulse = 1 L
	1128	* 006: DW-006 Flow Sensor: diameter: G3/4” / DN20. 390 pulse = 1 L
	1129	* 010: DW-010 Flow Sensor: diameter: G 1” / DN25. 64 pulse = 1 L
	1130	* 020: DW-020 Flow Sensor: diameter: G 2” / DN50. 12 pulse = 1 L
34.3	1131
34.4	1132	= 7. Packing Info =
	1133
64.3	1134
34.4	1135	Package Includes:
	1136
	1137	* SW3L Water Flow Sensor x 1
	1138
	1139	= 8. Support =
	1140
64.3	1141
34.4	1142	* (((
	1143	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.
	1144	)))
	1145	* (((
	1146	Provide as much information as possible regarding your inquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
66.3	1147
	1148
	1149
	1150
34.4	1151	)))

Wiki source code of SW3L -- LoRaWAN Outdoor Flow Sensor

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