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Last modified by Xiaoling on 2023/09/19 09:20
From version 71.1
edited by Edwin Chen
on 2022/07/03 00:00
Change comment: There is no comment for this version
To version 162.6
edited by Xiaoling
on 2023/09/19 09:20
Change comment: There is no comment for this version

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Title
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1 -LA66 LoRaWAN Module
1 +LA66 LoRaWAN Module User Manual
Author
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1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
1 +
2 +
3 +**Table of Contents:**
4 +
2 2  {{toc/}}
3 -{{/box}}
4 4  
5 -= LA66 LoRaWAN Module =
6 6  
7 -== What is LA66 LoRaWAN Module ==
8 8  
9 += 1.  LA66 LoRaWAN Module =
10 +
11 +== 1.1  What is LA66 LoRaWAN Module ==
12 +
13 +
14 +(((
15 +(((
16 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 +)))
18 +
19 +(((
20 +
21 +)))
22 +
23 +(((
9 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.
25 +)))
26 +)))
10 10  
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.
28 +(((
29 +(((
30 +(% 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.
31 +)))
32 +)))
12 12  
34 +(((
35 +(((
13 13  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 +)))
14 14  
39 +(((
15 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.
41 +)))
42 +)))
16 16  
44 +(((
45 +(((
17 17  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
47 +)))
48 +)))
18 18  
19 19  
20 -== Features ==
51 +== 1.2  Features ==
21 21  
22 -* Support LoRaWAN v1.0.4 protocol
53 +
54 +* Support LoRaWAN v1.0.3 protocol
23 23  * Support peer-to-peer protocol
24 24  * TCXO crystal to ensure RF performance on low temperature
25 25  * SMD Antenna pad and i-pex antenna connector
... ... @@ -29,8 +29,8 @@
29 29  * Firmware upgradable via UART interface
30 30  * Ultra-long RF range
31 31  
64 +== 1.3  Specification ==
32 32  
33 -== Specification ==
34 34  
35 35  * CPU: 32-bit 48 MHz
36 36  * Flash: 256KB
... ... @@ -50,261 +50,174 @@
50 50  * LoRa Rx current: <9 mA
51 51  * I/O Voltage: 3.3v
52 52  
53 -== AT Command ==
85 +== 1.4  AT Command ==
54 54  
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.
56 56  
88 +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/scl/fi/3mll5vn9wd446wuk7fwtn/LA66-AT-commands.pdf?rlkey=webesgp6himl162wnx7xssqa1&dl=0]].
57 57  
58 -== Dimension ==
90 +== 1.5  Dimension ==
59 59  
60 -[[image:image-20220517072526-1.png]]
61 61  
93 +[[image:image-20220718094750-3.png]]
62 62  
63 -== Pin Mapping ==
64 64  
65 -[[image:image-20220523101537-1.png]]
96 +== 1.6  Pin Mapping ==
66 66  
67 -== Land Pattern ==
98 +[[image:image-20220720111850-1.png]]
68 68  
69 -[[image:image-20220517072821-2.png]]
70 70  
101 +== 1.7  Land Pattern ==
71 71  
72 -== Part Number ==
73 73  
74 -Part Number: **LA66-XXX**
104 +[[image:image-20220517072821-2.png]]
75 75  
76 -**XX**: The default frequency band
77 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
107 += 2.  FAQ =
87 87  
109 +== 2.1  Where to find examples of how to use LA66? ==
88 88  
89 89  
90 -= LA66 LoRaWAN Shield =
112 +(% class="wikigeneratedid" %)
113 +Below products are made by LA66. User can use their examples as reference:
91 91  
92 -== Overview ==
115 +* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
116 +* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
93 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.
118 +== 2.2  How to Compile Source Code for LA66? ==
95 95  
96 96  
97 -== Features ==
121 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
98 98  
99 -* Arduino Shield base on LA66 LoRaWAN module
100 -* Support LoRaWAN v1.0.4 protocol
101 -* Support peer-to-peer protocol
102 -* TCXO crystal to ensure RF performance on low temperature
103 -* SMA connector
104 -* Available in different frequency LoRaWAN frequency bands.
105 -* World-wide unique OTAA keys.
106 -* AT Command via UART-TTL interface
107 -* Firmware upgradable via UART interface
108 -* Ultra-long RF range
109 109  
124 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
110 110  
111 -== Specification ==
112 112  
113 -* CPU: 32-bit 48 MHz
114 -* Flash: 256KB
115 -* RAM: 64KB
116 -* Input Power Range: 1.8v ~~ 3.7v
117 -* Power Consumption: < 4uA.
118 -* Frequency Range: 150 MHz ~~ 960 MHz
119 -* Maximum Power +22 dBm constant RF output
120 -* High sensitivity: -148 dBm
121 -* Temperature:
122 -** Storage: -55 ~~ +125℃
123 -** Operating: -40 ~~ +85℃
124 -* Humidity:
125 -** Storage: 5 ~~ 95% (Non-Condensing)
126 -** Operating: 10 ~~ 95% (Non-Condensing)
127 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
128 -* LoRa Rx current: <9 mA
129 -* I/O Voltage: 3.3v
127 +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.
130 130  
131 131  
132 -== Pin Mapping & LED ==
130 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
133 133  
134 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
135 135  
136 -== Example: Join TTN network and send an uplink message, get downlink message. ==
133 +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]]
137 137  
138 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
139 139  
140 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
136 +== 2.5 How can i use J-LInk to debug LA66? ==
141 141  
142 -=== what needs to be used ===
143 143  
144 -1.LA66 LoRaWAN Shield that needs to be upgraded
139 +(% style="color:#037691" %)**The steps are as follows:**
145 145  
146 -2.Arduino
147 147  
148 -3.USB TO TTL
142 +(% style="color:blue" %)**1. Install J-Link software from**
149 149  
150 -[[image:image-20220602100052-2.png]]
144 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
151 151  
152 -=== Wiring Schematic ===
153 153  
154 -[[image:image-20220602101311-3.png]]
147 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
155 155  
156 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
157 157  
158 -GND  >>>>>>>>>>>>GND
150 +[[image:image-20230605151850-1.png||height="676" width="640"]]
159 159  
160 -TXD  >>>>>>>>>>>>TXD
161 161  
162 -RXD  >>>>>>>>>>>>RXD
153 +[[image:image-20230605151850-2.png]]
163 163  
164 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
155 +(% style="display:none" %) (%%)
165 165  
166 -Connect to the PC after connecting the wires
157 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
167 167  
168 -[[image:image-20220602102240-4.png]]
169 169  
170 -=== Upgrade steps ===
160 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
171 171  
172 -==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
162 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
173 173  
174 -[[image:image-20220602102824-5.png]]
164 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
175 175  
176 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
166 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
177 177  
178 -[[image:image-20220602104701-12.png]]
168 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
179 179  
180 -==== Open the upgrade application software ====
170 +(% style="display:none" %) (%%)
181 181  
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/]]
172 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
183 183  
184 -[[image:image-20220602103227-6.png]]
174 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
185 185  
186 -[[image:image-20220602103357-7.png]]
187 187  
188 -===== Select the COM port corresponding to USB TTL =====
177 +**Add ASR6601 256KB Flash to Flash Download**
189 189  
190 -[[image:image-20220602103844-8.png]]
179 +[[image:image-20230605152412-12.png]]
191 191  
192 -===== Select the bin file to burn =====
193 193  
194 -[[image:image-20220602104144-9.png]]
182 +[[image:image-20230605151851-6.png]]
195 195  
196 -[[image:image-20220602104251-10.png]]
197 197  
198 -[[image:image-20220602104402-11.png]]
185 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
199 199  
200 -===== Click to start the download =====
201 201  
202 -[[image:image-20220602104923-13.png]]
188 +[[image:image-20230605151851-7.png]]
203 203  
204 -===== The following figure appears to prove that the burning is in progress =====
190 +[[image:image-20230605151851-8.png]]
205 205  
206 -[[image:image-20220602104948-14.png]]
207 207  
208 -===== The following picture appears to prove that the burning is successful =====
193 +(% style="color:red" %)**Note: After debug, user should change the Flash address back to 0x0800D000, and upload the OTA bootloader to LA66. Otherwise, the compiled program doesn't support OTA update.**
209 209  
210 -[[image:image-20220602105251-15.png]]
211 211  
212 -= LA66 USB LoRaWAN Adapter =
196 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
213 213  
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.
215 215  
216 -Before use, please make sure that the computer has installed the CP2102 driver
199 +[[image:image-20230605151851-9.png]]
217 217  
218 -== Pin Mapping & LED ==
219 219  
220 -== Example Send & Get Messages via LoRaWAN in PC ==
202 +(% style="color:blue" %)**Click Debug mode to debug.**
221 221  
222 -Connect the LA66 LoRa Shield to the PC
204 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
223 223  
224 -[[image:image-20220602171217-1.png||height="615" width="915"]]
225 225  
226 -Open the serial port tool
207 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
227 227  
228 -[[image:image-20220602161617-8.png]]
209 +(% style="display:none" %) (%%)
229 229  
230 -[[image:image-20220602161718-9.png||height="529" width="927"]]
211 += 3.  Order Info =
231 231  
232 -Press the reset switch RST on the LA66 LoRa Shield.
233 233  
234 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
214 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
235 235  
236 -[[image:image-20220602161935-10.png]]
216 +(% style="color:blue" %)**XXX**(%%): The default frequency band
237 237  
238 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
218 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
219 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
220 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
221 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
222 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
223 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
224 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
225 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
226 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
239 239  
240 -example: AT+SENDB=01,02,8,05820802581ea0a5
228 += 4.  FCC Statement =
241 241  
242 -[[image:image-20220602162157-11.png]]
243 243  
244 -Check to see if TTN received the message
231 +(% style="color:red" %)**FCC Caution:**
245 245  
246 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
233 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
247 247  
248 -== Example Send & Get Messages via LoRaWAN in RPi ==
235 +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.
249 249  
250 -Connect the LA66 LoRa Shield to the RPI
251 251  
252 -[[image:image-20220602171233-2.png||height="592" width="881"]]
238 +(% style="color:red" %)**IMPORTANT NOTE: **
253 253  
254 -Log in to the RPI's terminal and connect to the serial port
240 +(% 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:
255 255  
256 -[[image:image-20220602153146-3.png]]
242 +—Reorient or relocate the receiving antenna.
257 257  
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
244 +—Increase the separation between the equipment and receiver.
260 260  
261 -[[image:image-20220602154928-5.png]]
246 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
262 262  
263 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
248 +—Consult the dealer or an experienced radio/TV technician for help.
264 264  
265 -example: AT+SENDB=01,02,8,05820802581ea0a5
266 266  
267 -[[image:image-20220602160339-6.png]]
251 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
268 268  
269 -Check to see if TTN received the message
253 +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.
270 270  
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 -
310 310  
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