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Last modified by Xiaoling on 2023/09/19 09:20
From version 149.2
edited by Xiaoling
on 2022/10/21 11:10
Change comment: There is no comment for this version
To version 71.1
edited by Edwin Chen
on 2022/07/03 00:00
Change comment: There is no comment for this version

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1 -LA66 LoRaWAN Module User Manual
1 +LA66 LoRaWAN Module
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
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1 -
1 +{{box cssClass="floatinginfobox" title="**Contents**"}}
2 +{{toc/}}
3 +{{/box}}
2 2  
3 -**Table of Contents:**
5 += LA66 LoRaWAN Module =
4 4  
5 -{{toc/}}
7 +== What is LA66 LoRaWAN Module ==
6 6  
9 +(% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
7 7  
11 +(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.4 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
8 8  
9 -= 1.  LA66 LoRaWAN Module =
13 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
10 10  
15 +Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
11 11  
12 -== 1.1  What is LA66 LoRaWAN Module ==
17 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
13 13  
14 14  
15 -(((
16 -(((
17 -[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 -)))
20 +== Features ==
19 19  
20 -(((
21 -
22 -)))
22 +* Support LoRaWAN v1.0.4 protocol
23 +* Support peer-to-peer protocol
24 +* TCXO crystal to ensure RF performance on low temperature
25 +* SMD Antenna pad and i-pex antenna connector
26 +* Available in different frequency LoRaWAN frequency bands.
27 +* World-wide unique OTAA keys.
28 +* AT Command via UART-TTL interface
29 +* Firmware upgradable via UART interface
30 +* Ultra-long RF range
23 23  
24 -(((
25 -(% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
26 -)))
27 -)))
28 28  
29 -(((
30 -(((
31 -(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
32 -)))
33 -)))
33 +== Specification ==
34 34  
35 -(((
36 -(((
37 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
38 -)))
35 +* CPU: 32-bit 48 MHz
36 +* Flash: 256KB
37 +* RAM: 64KB
38 +* Input Power Range: 1.8v ~~ 3.7v
39 +* Power Consumption: < 4uA.
40 +* Frequency Range: 150 MHz ~~ 960 MHz
41 +* Maximum Power +22 dBm constant RF output
42 +* High sensitivity: -148 dBm
43 +* Temperature:
44 +** Storage: -55 ~~ +125℃
45 +** Operating: -40 ~~ +85℃
46 +* Humidity:
47 +** Storage: 5 ~~ 95% (Non-Condensing)
48 +** Operating: 10 ~~ 95% (Non-Condensing)
49 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
50 +* LoRa Rx current: <9 mA
51 +* I/O Voltage: 3.3v
39 39  
40 -(((
41 -Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
42 -)))
43 -)))
53 +== AT Command ==
44 44  
45 -(((
46 -(((
47 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 -)))
49 -)))
55 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
50 50  
51 51  
58 +== Dimension ==
52 52  
53 -== 1.2  Features ==
60 +[[image:image-20220517072526-1.png]]
54 54  
55 55  
56 -* Support LoRaWAN v1.0.3 protocol
63 +== Pin Mapping ==
64 +
65 +[[image:image-20220523101537-1.png]]
66 +
67 +== Land Pattern ==
68 +
69 +[[image:image-20220517072821-2.png]]
70 +
71 +
72 +== Part Number ==
73 +
74 +Part Number: **LA66-XXX**
75 +
76 +**XX**: The default frequency band
77 +
78 +* **AS923**: LoRaWAN AS923 band
79 +* **AU915**: LoRaWAN AU915 band
80 +* **EU433**: LoRaWAN EU433 band
81 +* **EU868**: LoRaWAN EU868 band
82 +* **KR920**: LoRaWAN KR920 band
83 +* **US915**: LoRaWAN US915 band
84 +* **IN865**: LoRaWAN IN865 band
85 +* **CN470**: LoRaWAN CN470 band
86 +* **PP**: Peer to Peer LoRa Protocol
87 +
88 +
89 +
90 += LA66 LoRaWAN Shield =
91 +
92 +== Overview ==
93 +
94 +LA66 LoRaWAN Shield is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to  Arduino projects.
95 +
96 +
97 +== Features ==
98 +
99 +* Arduino Shield base on LA66 LoRaWAN module
100 +* Support LoRaWAN v1.0.4 protocol
57 57  * Support peer-to-peer protocol
58 58  * TCXO crystal to ensure RF performance on low temperature
59 -* SMD Antenna pad and i-pex antenna connector
103 +* SMA connector
60 60  * Available in different frequency LoRaWAN frequency bands.
61 61  * World-wide unique OTAA keys.
62 62  * AT Command via UART-TTL interface
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64 64  * Ultra-long RF range
65 65  
66 66  
111 +== Specification ==
67 67  
68 -== 1.3  Specification ==
69 -
70 -
71 71  * CPU: 32-bit 48 MHz
72 72  * Flash: 256KB
73 73  * RAM: 64KB
... ... @@ -87,112 +87,182 @@
87 87  * I/O Voltage: 3.3v
88 88  
89 89  
132 +== Pin Mapping & LED ==
90 90  
91 -== 1.4  AT Command ==
134 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
92 92  
136 +== Example: Join TTN network and send an uplink message, get downlink message. ==
93 93  
94 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in[[ AT Command documents>>https://www.dropbox.com/sh/wtq43za8sykpgta/AABAEE02uEAsRU-JV7bzEhMba?dl=0]].
138 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
95 95  
140 +== Upgrade Firmware of LA66 LoRaWAN Shield ==
96 96  
142 +=== what needs to be used ===
97 97  
98 -== 1.5  Dimension ==
144 +1.LA66 LoRaWAN Shield that needs to be upgraded
99 99  
146 +2.Arduino
100 100  
101 -[[image:image-20220718094750-3.png]]
148 +3.USB TO TTL
102 102  
150 +[[image:image-20220602100052-2.png]]
103 103  
152 +=== Wiring Schematic ===
104 104  
105 -== 1.6  Pin Mapping ==
154 +[[image:image-20220602101311-3.png]]
106 106  
107 -[[image:image-20220720111850-1.png]]
156 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
108 108  
158 +GND  >>>>>>>>>>>>GND
109 109  
160 +TXD  >>>>>>>>>>>>TXD
110 110  
111 -== 1.7  Land Pattern ==
162 +RXD  >>>>>>>>>>>>RXD
112 112  
164 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
113 113  
114 -[[image:image-20220517072821-2.png]]
166 +Connect to the PC after connecting the wires
115 115  
168 +[[image:image-20220602102240-4.png]]
116 116  
170 +=== Upgrade steps ===
117 117  
118 -= 2.  FAQ =
172 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
119 119  
174 +[[image:image-20220602102824-5.png]]
120 120  
121 -== 2.1  Where to find examples of how to use LA66? ==
176 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
122 122  
178 +[[image:image-20220602104701-12.png]]
123 123  
124 -(% class="wikigeneratedid" %)
125 -Below products are made by LA66. User can use their examples as reference:
180 +==== Open the upgrade application software ====
126 126  
127 -* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
128 -* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
182 +Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]
129 129  
184 +[[image:image-20220602103227-6.png]]
130 130  
186 +[[image:image-20220602103357-7.png]]
131 131  
132 -== 2.2  How to Compile Source Code for LA66? ==
188 +===== Select the COM port corresponding to USB TTL =====
133 133  
190 +[[image:image-20220602103844-8.png]]
134 134  
135 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
192 +===== Select the bin file to burn =====
136 136  
194 +[[image:image-20220602104144-9.png]]
137 137  
196 +[[image:image-20220602104251-10.png]]
138 138  
139 -== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
198 +[[image:image-20220602104402-11.png]]
140 140  
200 +===== Click to start the download =====
141 141  
142 -Yes, this is possible, user can refer[[ the source code from ASR >>https://github.com/asrlora/asr_lora_6601/tree/master/projects/ASR6601SE-EVAL/examples/lora]]to get examples for how to its I/O Interfaces.
202 +[[image:image-20220602104923-13.png]]
143 143  
204 +===== The following figure appears to prove that the burning is in progress =====
144 144  
206 +[[image:image-20220602104948-14.png]]
145 145  
146 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
208 +===== The following picture appears to prove that the burning is successful =====
147 147  
210 +[[image:image-20220602105251-15.png]]
148 148  
149 -Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]]
212 += LA66 USB LoRaWAN Adapter =
150 150  
214 +LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
151 151  
216 +Before use, please make sure that the computer has installed the CP2102 driver
152 152  
153 -= 3.  Order Info =
218 +== Pin Mapping & LED ==
154 154  
220 +== Example Send & Get Messages via LoRaWAN in PC ==
155 155  
156 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
222 +Connect the LA66 LoRa Shield to the PC
157 157  
224 +[[image:image-20220602171217-1.png||height="615" width="915"]]
158 158  
159 -(% style="color:blue" %)**XXX**(%%): The default frequency band
226 +Open the serial port tool
160 160  
161 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
162 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
163 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
164 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
165 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
166 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
167 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
168 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
169 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
228 +[[image:image-20220602161617-8.png]]
170 170  
230 +[[image:image-20220602161718-9.png||height="529" width="927"]]
171 171  
232 +Press the reset switch RST on the LA66 LoRa Shield.
172 172  
173 -= 4.  FCC Statement =
234 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
174 174  
236 +[[image:image-20220602161935-10.png]]
175 175  
176 -(% style="color:red" %)**FCC Caution:**
238 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
177 177  
178 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
240 +example: AT+SENDB=01,02,8,05820802581ea0a5
179 179  
180 -This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
242 +[[image:image-20220602162157-11.png]]
181 181  
244 +Check to see if TTN received the message
182 182  
183 -(% style="color:red" %)**IMPORTANT NOTE: **
246 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
184 184  
185 -(% style="color:red" %)**Note:**(%%) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
248 +== Example Send & Get Messages via LoRaWAN in RPi ==
186 186  
187 -—Reorient or relocate the receiving antenna.
250 +Connect the LA66 LoRa Shield to the RPI
188 188  
189 -—Increase the separation between the equipment and receiver.
252 +[[image:image-20220602171233-2.png||height="592" width="881"]]
190 190  
191 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
254 +Log in to the RPI's terminal and connect to the serial port
192 192  
193 -—Consult the dealer or an experienced radio/TV technician for help.
256 +[[image:image-20220602153146-3.png]]
194 194  
258 +Press the reset switch RST on the LA66 LoRa Shield.
259 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
195 195  
196 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
261 +[[image:image-20220602154928-5.png]]
197 197  
198 -This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
263 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
264 +
265 +example: AT+SENDB=01,02,8,05820802581ea0a5
266 +
267 +[[image:image-20220602160339-6.png]]
268 +
269 +Check to see if TTN received the message
270 +
271 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
272 +
273 +=== Install Minicom ===
274 +
275 +Enter the following command in the RPI terminal
276 +
277 +apt update
278 +
279 +[[image:image-20220602143155-1.png]]
280 +
281 +apt install minicom
282 +
283 +[[image:image-20220602143744-2.png]]
284 +
285 +=== Send PC's CPU/RAM usage to TTN via script. ===
286 +
287 +==== Take python as an example： ====
288 +
289 +===== Preconditions: =====
290 +
291 +1.LA66 USB LoRaWAN Adapter works fine
292 +
293 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
294 +
295 +===== Steps for usage =====
296 +
297 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
298 +
299 +2.Run the script and see the TTN
300 +
301 +[[image:image-20220602115852-3.png]]
302 +
303 +
304 +
305 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
306 +
307 +
308 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
309 +
310 +
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