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Last modified by Xiaoling on 2023/09/19 09:20
From version 69.1
edited by Edwin Chen
on 2022/07/02 23:51
Change comment: There is no comment for this version
To version 162.5
edited by Xiaoling
on 2023/09/18 16:35
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
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30 30  * Ultra-long RF range
31 31  
32 32  
33 -== Specification ==
65 +== 1.3  Specification ==
34 34  
67 +
35 35  * CPU: 32-bit 48 MHz
36 36  * Flash: 256KB
37 37  * RAM: 64KB
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50 50  * LoRa Rx current: <9 mA
51 51  * I/O Voltage: 3.3v
52 52  
53 -== 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.
87 +== 1.4  AT Command ==
56 56  
57 57  
58 -== Dimension ==
90 +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/s3i58dyuh2zpwxfzcks9d/Accuhealth-LA66-AT-commands.pdf?rlkey=059co9isdbddl1h1lb5gy93oy&dl=0]].
59 59  
60 -[[image:image-20220517072526-1.png]]
92 +== 1.5  Dimension ==
61 61  
62 62  
63 -== Pin Mapping ==
95 +[[image:image-20220718094750-3.png]]
64 64  
65 -[[image:image-20220523101537-1.png]]
66 66  
67 -== Land Pattern ==
98 +== 1.6  Pin Mapping ==
68 68  
69 -[[image:image-20220517072821-2.png]]
100 +[[image:image-20220720111850-1.png]]
70 70  
71 71  
72 -== Part Number ==
103 +== 1.7  Land Pattern ==
73 73  
74 -Part Number: **LA66-XXX**
75 75  
76 -**XX**: The default frequency band
106 +[[image:image-20220517072821-2.png]]
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
87 87  
88 -= LA66 LoRaWAN Shield =
109 += 2.  FAQ =
89 89  
90 -LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
111 +== 2.1  Where to find examples of how to use LA66? ==
91 91  
92 -== Pin Mapping & LED ==
93 93  
94 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
114 +(% class="wikigeneratedid" %)
115 +Below products are made by LA66. User can use their examples as reference:
95 95  
96 -== Example: Join TTN network and send an uplink message, get downlink message. ==
117 +* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
118 +* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
97 97  
98 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
99 99  
100 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
121 +== 2.2  How to Compile Source Code for LA66? ==
101 101  
102 -=== what needs to be used ===
103 103  
104 -1.LA66 LoRaWAN Shield that needs to be upgraded
124 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
105 105  
106 -2.Arduino
107 107  
108 -3.USB TO TTL
127 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
109 109  
110 -[[image:image-20220602100052-2.png]]
111 111  
112 -=== Wiring Schematic ===
130 +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.
113 113  
114 -[[image:image-20220602101311-3.png]]
115 115  
116 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
133 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
117 117  
118 -GND  >>>>>>>>>>>>GND
119 119  
120 -TXD  >>>>>>>>>>>>TXD
136 +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]]
121 121  
122 -RXD  >>>>>>>>>>>>RXD
123 123  
124 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
139 +== 2.5 How can i use J-LInk to debug LA66? ==
125 125  
126 -Connect to the PC after connecting the wires
127 127  
128 -[[image:image-20220602102240-4.png]]
142 +(% style="color:#037691" %)**The steps are as follows:**
129 129  
130 -=== Upgrade steps ===
131 131  
132 -==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
145 +(% style="color:blue" %)**1. Install J-Link software from**
133 133  
134 -[[image:image-20220602102824-5.png]]
147 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
135 135  
136 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
137 137  
138 -[[image:image-20220602104701-12.png]]
150 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
139 139  
140 -==== Open the upgrade application software ====
141 141  
142 -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/]]
153 +[[image:image-20230605151850-1.png||height="676" width="640"]]
143 143  
144 -[[image:image-20220602103227-6.png]]
145 145  
146 -[[image:image-20220602103357-7.png]]
156 +[[image:image-20230605151850-2.png]]
147 147  
148 -===== Select the COM port corresponding to USB TTL =====
158 +(% style="display:none" %) (%%)
149 149  
150 -[[image:image-20220602103844-8.png]]
160 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
151 151  
152 -===== Select the bin file to burn =====
153 153  
154 -[[image:image-20220602104144-9.png]]
163 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
155 155  
156 -[[image:image-20220602104251-10.png]]
165 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
157 157  
158 -[[image:image-20220602104402-11.png]]
167 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
159 159  
160 -===== Click to start the download =====
169 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
161 161  
162 -[[image:image-20220602104923-13.png]]
171 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
163 163  
164 -===== The following figure appears to prove that the burning is in progress =====
173 +(% style="display:none" %) (%%)
165 165  
166 -[[image:image-20220602104948-14.png]]
175 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
167 167  
168 -===== The following picture appears to prove that the burning is successful =====
177 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
169 169  
170 -[[image:image-20220602105251-15.png]]
171 171  
172 -= LA66 USB LoRaWAN Adapter =
180 +**Add ASR6601 256KB Flash to Flash Download**
173 173  
174 -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.
182 +[[image:image-20230605152412-12.png]]
175 175  
176 -Before use, please make sure that the computer has installed the CP2102 driver
177 177  
178 -== Pin Mapping & LED ==
185 +[[image:image-20230605151851-6.png]]
179 179  
180 -== Example Send & Get Messages via LoRaWAN in PC ==
181 181  
182 -Connect the LA66 LoRa Shield to the PC
188 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
183 183  
184 -[[image:image-20220602171217-1.png||height="615" width="915"]]
185 185  
186 -Open the serial port tool
191 +[[image:image-20230605151851-7.png]]
187 187  
188 -[[image:image-20220602161617-8.png]]
193 +[[image:image-20230605151851-8.png]]
189 189  
190 -[[image:image-20220602161718-9.png||height="529" width="927"]]
191 191  
192 -Press the reset switch RST on the LA66 LoRa Shield.
196 +(% 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.**
193 193  
194 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
195 195  
196 -[[image:image-20220602161935-10.png]]
199 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
197 197  
198 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
199 199  
200 -example: AT+SENDB=01,02,8,05820802581ea0a5
202 +[[image:image-20230605151851-9.png]]
201 201  
202 -[[image:image-20220602162157-11.png]]
203 203  
204 -Check to see if TTN received the message
205 +(% style="color:blue" %)**Click Debug mode to debug.**
205 205  
206 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
207 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
207 207  
208 -== Example Send & Get Messages via LoRaWAN in RPi ==
209 209  
210 -Connect the LA66 LoRa Shield to the RPI
210 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
211 211  
212 -[[image:image-20220602171233-2.png||height="592" width="881"]]
212 +(% style="display:none" %) (%%)
213 213  
214 -Log in to the RPI's terminal and connect to the serial port
214 += 3.  Order Info =
215 215  
216 -[[image:image-20220602153146-3.png]]
217 217  
218 -Press the reset switch RST on the LA66 LoRa Shield.
219 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
217 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
220 220  
221 -[[image:image-20220602154928-5.png]]
219 +(% style="color:blue" %)**XXX**(%%): The default frequency band
222 222  
223 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
221 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
222 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
223 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
224 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
225 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
226 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
227 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
228 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
229 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
224 224  
225 -example: AT+SENDB=01,02,8,05820802581ea0a5
226 226  
227 -[[image:image-20220602160339-6.png]]
232 += 4.  FCC Statement =
228 228  
229 -Check to see if TTN received the message
230 230  
231 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
235 +(% style="color:red" %)**FCC Caution:**
232 232  
233 -=== Install Minicom ===
237 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
234 234  
235 -Enter the following command in the RPI terminal
239 +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.
236 236  
237 -apt update
238 238  
239 -[[image:image-20220602143155-1.png]]
242 +(% style="color:red" %)**IMPORTANT NOTE: **
240 240  
241 -apt install minicom
244 +(% 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:
242 242  
243 -[[image:image-20220602143744-2.png]]
246 +—Reorient or relocate the receiving antenna.
244 244  
245 -=== Send PC's CPU/RAM usage to TTN via script. ===
248 +—Increase the separation between the equipment and receiver.
246 246  
247 -==== Take python as an example： ====
250 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
248 248  
249 -===== Preconditions: =====
252 +—Consult the dealer or an experienced radio/TV technician for help.
250 250  
251 -1.LA66 USB LoRaWAN Adapter works fine
252 252  
253 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
255 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
254 254  
255 -===== Steps for usage =====
257 +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.
256 256  
257 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
258 -
259 -2.Run the script and see the TTN
260 -
261 -[[image:image-20220602115852-3.png]]
262 -
263 -
264 -
265 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
266 -
267 -
268 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
269 -
270 270  
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