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Last modified by Xiaoling on 2023/09/19 09:20
From version 63.1
edited by Herong Lu
on 2022/06/02 17:23
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.Lu
1 +XWiki.Xiaoling
Content
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
2 -{{toc/}}
3 -{{/box}}
1 +
4 4  
5 -= LA66 LoRaWAN Module =
3 +**Table of Contents:**
6 6  
7 -== What is LA66 LoRaWAN Module ==
5 +{{toc/}}
8 8  
9 -**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 LoRa 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 program, create and connect your things everywhere.
10 10  
11 -**LA66 **is a ready-to-use module which includes the LoRaWAN v1.0.4 protocol. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
12 12  
13 -**Each LA66 **module includes a world unique OTAA key for LoRaWAN registration.
9 += 1.  LA66 LoRaWAN Module =
14 14  
11 +== 1.1  What is LA66 LoRaWAN Module ==
15 15  
16 16  
17 -== Specification ==
14 +(((
15 +(((
16 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 +)))
18 18  
19 -[[image:image-20220517072526-1.png]]
19 +(((
20 +
21 +)))
20 20  
21 -Input Power Range: 1.8v ~~ 3.7v
23 +(((
24 +(% 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 +)))
22 22  
23 -Power Consumption: < 4uA.
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 +)))
24 24  
25 -Frequency Range: 150 MHz ~~ 960 MHz
34 +(((
35 +(((
36 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 +)))
26 26  
27 -Maximum Power +22 dBm constant RF output
39 +(((
40 +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 +)))
28 28  
29 -High sensitivity: -148 dBm
44 +(((
45 +(((
46 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
47 +)))
48 +)))
30 30  
31 -Temperature:
32 32  
33 -* Storage: -55 ~~ +125℃
34 -* Operating: -40 ~~ +85℃
51 +== 1.2  Features ==
35 35  
36 -Humidity:
37 37  
38 -* Storage: 5 ~~ 95% (Non-Condensing)
39 -* Operating: 10 ~~ 95% (Non-Condensing)
54 +* Support LoRaWAN v1.0.3 protocol
55 +* Support peer-to-peer protocol
56 +* TCXO crystal to ensure RF performance on low temperature
57 +* SMD Antenna pad and i-pex antenna connector
58 +* Available in different frequency LoRaWAN frequency bands.
59 +* World-wide unique OTAA keys.
60 +* AT Command via UART-TTL interface
61 +* Firmware upgradable via UART interface
62 +* Ultra-long RF range
40 40  
41 -LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
42 42  
43 -LoRa Rx current: <9 mA
65 +== 1.3  Specification ==
44 44  
45 -I/O Voltage: 3.3v
46 46  
68 +* CPU: 32-bit 48 MHz
69 +* Flash: 256KB
70 +* RAM: 64KB
71 +* Input Power Range: 1.8v ~~ 3.7v
72 +* Power Consumption: < 4uA.
73 +* Frequency Range: 150 MHz ~~ 960 MHz
74 +* Maximum Power +22 dBm constant RF output
75 +* High sensitivity: -148 dBm
76 +* Temperature:
77 +** Storage: -55 ~~ +125℃
78 +** Operating: -40 ~~ +85℃
79 +* Humidity:
80 +** Storage: 5 ~~ 95% (Non-Condensing)
81 +** Operating: 10 ~~ 95% (Non-Condensing)
82 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
83 +* LoRa Rx current: <9 mA
84 +* I/O Voltage: 3.3v
47 47  
48 -== AT Command ==
49 49  
50 -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 ==
51 51  
52 52  
53 -== Pin Mapping ==
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]].
54 54  
55 -[[image:image-20220523101537-1.png]]
92 +== 1.5  Dimension ==
56 56  
57 -== Land Pattern ==
58 58  
59 -[[image:image-20220517072821-2.png]]
95 +[[image:image-20220718094750-3.png]]
60 60  
61 61  
62 -== Part Number ==
98 +== 1.6  Pin Mapping ==
63 63  
64 -Part Number: **LA66-XXX**
100 +[[image:image-20220720111850-1.png]]
65 65  
66 -**XX**: The default frequency band
67 67  
68 -* **AS923**: LoRaWAN AS923 band
69 -* **AU915**: LoRaWAN AU915 band
70 -* **EU433**: LoRaWAN EU433 band
71 -* **EU868**: LoRaWAN EU868 band
72 -* **KR920**: LoRaWAN KR920 band
73 -* **US915**: LoRaWAN US915 band
74 -* **IN865**: LoRaWAN IN865 band
75 -* **CN470**: LoRaWAN CN470 band
103 +== 1.7  Land Pattern ==
76 76  
77 -= LA66 LoRaWAN Shield =
78 78  
79 -LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
106 +[[image:image-20220517072821-2.png]]
80 80  
81 -== Pin Mapping & LED ==
82 82  
83 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
109 += 2.  FAQ =
84 84  
85 -== Example: Join TTN network and send an uplink message, get downlink message. ==
111 +== 2.1  Where to find examples of how to use LA66? ==
86 86  
87 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
88 88  
89 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
114 +(% class="wikigeneratedid" %)
115 +Below products are made by LA66. User can use their examples as reference:
90 90  
91 -=== what needs to be used ===
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]]
92 92  
93 -1.LA66 LoRaWAN Shield that needs to be upgraded
94 94  
95 -2.Arduino
121 +== 2.2  How to Compile Source Code for LA66? ==
96 96  
97 -3.USB TO TTL
98 98  
99 -[[image:image-20220602100052-2.png]]
124 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
100 100  
101 -=== Wiring Schematic ===
102 102  
103 -[[image:image-20220602101311-3.png]]
127 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
104 104  
105 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
106 106  
107 -GND  >>>>>>>>>>>>GND
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.
108 108  
109 -TXD  >>>>>>>>>>>>TXD
110 110  
111 -RXD  >>>>>>>>>>>>RXD
133 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
112 112  
113 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
114 114  
115 -Connect to the PC after connecting the wires
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]]
116 116  
117 -[[image:image-20220602102240-4.png]]
118 118  
119 -=== Upgrade steps ===
139 +== 2.5 How can i use J-LInk to debug LA66? ==
120 120  
121 -==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
122 122  
123 -[[image:image-20220602102824-5.png]]
142 +(% style="color:#037691" %)**The steps are as follows:**
124 124  
125 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
126 126  
127 -[[image:image-20220602104701-12.png]]
145 +(% style="color:blue" %)**1. Install J-Link software from**
128 128  
129 -==== Open the upgrade application software ====
147 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
130 130  
131 -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/]]
132 132  
133 -[[image:image-20220602103227-6.png]]
150 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
134 134  
135 -[[image:image-20220602103357-7.png]]
136 136  
137 -===== Select the COM port corresponding to USB TTL =====
153 +[[image:image-20230605151850-1.png||height="676" width="640"]]
138 138  
139 -[[image:image-20220602103844-8.png]]
140 140  
141 -===== Select the bin file to burn =====
156 +[[image:image-20230605151850-2.png]]
142 142  
143 -[[image:image-20220602104144-9.png]]
158 +(% style="display:none" %) (%%)
144 144  
145 -[[image:image-20220602104251-10.png]]
160 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
146 146  
147 -[[image:image-20220602104402-11.png]]
148 148  
149 -===== Click to start the download =====
163 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
150 150  
151 -[[image:image-20220602104923-13.png]]
165 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
152 152  
153 -===== The following figure appears to prove that the burning is in progress =====
167 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
154 154  
155 -[[image:image-20220602104948-14.png]]
169 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
156 156  
157 -===== The following picture appears to prove that the burning is successful =====
171 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
158 158  
159 -[[image:image-20220602105251-15.png]]
173 +(% style="display:none" %) (%%)
160 160  
161 -= LA66 USB LoRaWAN Adapter =
175 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
162 162  
163 -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.
177 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
164 164  
165 -Before use, please make sure that the computer has installed the CP2102 driver
166 166  
167 -== Pin Mapping & LED ==
180 +**Add ASR6601 256KB Flash to Flash Download**
168 168  
169 -== Example Send & Get Messages via LoRaWAN in PC ==
182 +[[image:image-20230605152412-12.png]]
170 170  
171 -Connect the LA66 LoRa Shield to the PC
172 172  
173 -[[image:image-20220602171217-1.png||height="615" width="915"]]
185 +[[image:image-20230605151851-6.png]]
174 174  
175 -Open the serial port tool
176 176  
177 -[[image:image-20220602161617-8.png]]
188 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
178 178  
179 -[[image:image-20220602161718-9.png||height="529" width="927"]]
180 180  
181 -Press the reset switch RST on the LA66 LoRa Shield.
191 +[[image:image-20230605151851-7.png]]
182 182  
183 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
193 +[[image:image-20230605151851-8.png]]
184 184  
185 -[[image:image-20220602161935-10.png]]
186 186  
187 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
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.**
188 188  
189 -example: AT+SENDB=01,02,8,05820802581ea0a5
190 190  
191 -[[image:image-20220602162157-11.png]]
199 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
192 192  
193 -Check to see if TTN received the message
194 194  
195 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
202 +[[image:image-20230605151851-9.png]]
196 196  
197 -== Example Send & Get Messages via LoRaWAN in RPi ==
198 198  
199 -Connect the LA66 LoRa Shield to the RPI
205 +(% style="color:blue" %)**Click Debug mode to debug.**
200 200  
201 -[[image:image-20220602171233-2.png||height="592" width="881"]]
207 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
202 202  
203 -Log in to the RPI's terminal and connect to the serial port
204 204  
205 -[[image:image-20220602153146-3.png]]
210 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
206 206  
207 -Press the reset switch RST on the LA66 LoRa Shield.
208 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
212 +(% style="display:none" %) (%%)
209 209  
210 -[[image:image-20220602154928-5.png]]
214 += 3.  Order Info =
211 211  
212 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
213 213  
214 -example: AT+SENDB=01,02,8,05820802581ea0a5
217 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
215 215  
216 -[[image:image-20220602160339-6.png]]
219 +(% style="color:blue" %)**XXX**(%%): The default frequency band
217 217  
218 -Check to see if TTN received the message
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
219 219  
220 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
221 221  
222 -=== Install Minicom ===
232 += 4.  FCC Statement =
223 223  
224 -Enter the following command in the RPI terminal
225 225  
226 -apt update
235 +(% style="color:red" %)**FCC Caution:**
227 227  
228 -[[image:image-20220602143155-1.png]]
237 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
229 229  
230 -apt install minicom
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.
231 231  
232 -[[image:image-20220602143744-2.png]]
233 233  
234 -=== Send PC's CPU/RAM usage to TTN via script. ===
242 +(% style="color:red" %)**IMPORTANT NOTE: **
235 235  
236 -==== Take python as an example： ====
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:
237 237  
238 -===== Preconditions: =====
246 +—Reorient or relocate the receiving antenna.
239 239  
240 -1.LA66 USB LoRaWAN Adapter works fine
248 +—Increase the separation between the equipment and receiver.
241 241  
242 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
250 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
243 243  
244 -===== Steps for usage =====
252 +—Consult the dealer or an experienced radio/TV technician for help.
245 245  
246 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
247 247  
248 -2.Run the script and see the TTN
255 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
249 249  
250 -[[image:image-20220602115852-3.png]]
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.
251 251  
252 -
253 -
254 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
255 -
256 -
257 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
258 -
259 259  
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