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Last modified by Xiaoling on 2023/09/19 09:20
From version 64.1
edited by Edwin Chen
on 2022/07/02 21:03
Change comment: There is no comment for this version
To version 162.3
edited by Xiaoling
on 2023/06/05 15:35
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**"}}
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 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.
10 10  
11 -**LA66 **is a ready-to-use module that includes the 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 for developers to make a LoRaWAN End device. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
12 12  
9 += 1.  LA66 LoRaWAN Module =
13 13  
14 -LA66 is equipped with **TCXO crystal** which ensures the module can achieve the stable performance in extreme temperatures.
11 +== 1.1  What is LA66 LoRaWAN Module ==
15 15  
16 16  
17 -**Each LA66 **module includes a world-unique OTAA key for LoRaWAN registration.
14 +(((
15 +(((
16 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 +)))
18 18  
19 +(((
20 +
21 +)))
19 19  
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 +)))
20 20  
21 -== Specification ==
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 +)))
22 22  
23 -[[image:image-20220517072526-1.png]]
34 +(((
35 +(((
36 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 +)))
24 24  
25 -Input Power Range: 1.8v ~~ 3.7v
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 +)))
26 26  
27 -Power Consumption: < 4uA.
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 +)))
28 28  
29 -Frequency Range: 150 MHz ~~ 960 MHz
30 30  
31 -Maximum Power +22 dBm constant RF output
51 +== 1.2  Features ==
32 32  
33 -High sensitivity: -148 dBm
34 34  
35 -Temperature:
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
36 36  
37 -* Storage: -55 ~~ +125℃
38 -* Operating: -40 ~~ +85℃
39 39  
40 -Humidity:
41 41  
42 -* Storage: 5 ~~ 95% (Non-Condensing)
43 -* Operating: 10 ~~ 95% (Non-Condensing)
66 +== 1.3  Specification ==
44 44  
45 -LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
46 46  
47 -LoRa Rx current: <9 mA
69 +* CPU: 32-bit 48 MHz
70 +* Flash: 256KB
71 +* RAM: 64KB
72 +* Input Power Range: 1.8v ~~ 3.7v
73 +* Power Consumption: < 4uA.
74 +* Frequency Range: 150 MHz ~~ 960 MHz
75 +* Maximum Power +22 dBm constant RF output
76 +* High sensitivity: -148 dBm
77 +* Temperature:
78 +** Storage: -55 ~~ +125℃
79 +** Operating: -40 ~~ +85℃
80 +* Humidity:
81 +** Storage: 5 ~~ 95% (Non-Condensing)
82 +** Operating: 10 ~~ 95% (Non-Condensing)
83 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
84 +* LoRa Rx current: <9 mA
85 +* I/O Voltage: 3.3v
48 48  
49 -I/O Voltage: 3.3v
50 50  
51 51  
52 -== AT Command ==
89 +== 1.4  AT Command ==
53 53  
54 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
55 55  
92 +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]].
56 56  
57 -== Pin Mapping ==
58 58  
59 -[[image:image-20220523101537-1.png]]
95 +== 1.5  Dimension ==
60 60  
61 -== Land Pattern ==
62 62  
63 -[[image:image-20220517072821-2.png]]
98 +[[image:image-20220718094750-3.png]]
64 64  
65 65  
66 -== Part Number ==
101 +== 1.6  Pin Mapping ==
67 67  
68 -Part Number: **LA66-XXX**
103 +[[image:image-20220720111850-1.png]]
69 69  
70 -**XX**: The default frequency band
71 71  
72 -* **AS923**: LoRaWAN AS923 band
73 -* **AU915**: LoRaWAN AU915 band
74 -* **EU433**: LoRaWAN EU433 band
75 -* **EU868**: LoRaWAN EU868 band
76 -* **KR920**: LoRaWAN KR920 band
77 -* **US915**: LoRaWAN US915 band
78 -* **IN865**: LoRaWAN IN865 band
79 -* **CN470**: LoRaWAN CN470 band
106 +== 1.7  Land Pattern ==
80 80  
81 -= LA66 LoRaWAN Shield =
82 82  
83 -LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
109 +[[image:image-20220517072821-2.png]]
84 84  
85 -== Pin Mapping & LED ==
86 86  
87 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
112 += 2.  FAQ =
88 88  
89 -== Example: Join TTN network and send an uplink message, get downlink message. ==
114 +== 2.1  Where to find examples of how to use LA66? ==
90 90  
91 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
92 92  
93 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
117 +(% class="wikigeneratedid" %)
118 +Below products are made by LA66. User can use their examples as reference:
94 94  
95 -=== what needs to be used ===
120 +* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
121 +* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
96 96  
97 -1.LA66 LoRaWAN Shield that needs to be upgraded
98 98  
99 -2.Arduino
100 100  
101 -3.USB TO TTL
125 +== 2.2  How to Compile Source Code for LA66? ==
102 102  
103 -[[image:image-20220602100052-2.png]]
104 104  
105 -=== Wiring Schematic ===
128 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
106 106  
107 -[[image:image-20220602101311-3.png]]
108 108  
109 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
131 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
110 110  
111 -GND  >>>>>>>>>>>>GND
112 112  
113 -TXD  >>>>>>>>>>>>TXD
134 +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.
114 114  
115 -RXD  >>>>>>>>>>>>RXD
116 116  
117 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
137 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
118 118  
119 -Connect to the PC after connecting the wires
120 120  
121 -[[image:image-20220602102240-4.png]]
140 +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]]
122 122  
123 -=== Upgrade steps ===
124 124  
125 -==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
143 +== 2.5 How can i use J-LInk to debug LA66? ==
126 126  
127 -[[image:image-20220602102824-5.png]]
128 128  
129 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
146 +(% style="color:#037691" %)**The steps are as follows:**
130 130  
131 -[[image:image-20220602104701-12.png]]
132 132  
133 -==== Open the upgrade application software ====
149 +(% style="color:blue" %)**1. Install J-Link software from**
134 134  
135 -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/]]
151 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
136 136  
137 -[[image:image-20220602103227-6.png]]
138 138  
139 -[[image:image-20220602103357-7.png]]
154 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
140 140  
141 -===== Select the COM port corresponding to USB TTL =====
142 142  
143 -[[image:image-20220602103844-8.png]]
157 +[[image:image-20230605151850-1.png]]
144 144  
145 -===== Select the bin file to burn =====
146 146  
147 -[[image:image-20220602104144-9.png]]
160 +[[image:image-20230605151850-2.png]]
148 148  
149 -[[image:image-20220602104251-10.png]]
150 150  
151 -[[image:image-20220602104402-11.png]]
163 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
152 152  
153 -===== Click to start the download =====
165 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
154 154  
155 -[[image:image-20220602104923-13.png]]
167 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
156 156  
157 -===== The following figure appears to prove that the burning is in progress =====
169 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
158 158  
159 -[[image:image-20220602104948-14.png]]
171 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
160 160  
161 -===== The following picture appears to prove that the burning is successful =====
173 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
162 162  
163 -[[image:image-20220602105251-15.png]]
175 +(% style="display:none" %) (%%)
164 164  
165 -= LA66 USB LoRaWAN Adapter =
177 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
166 166  
167 -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.
179 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
168 168  
169 -Before use, please make sure that the computer has installed the CP2102 driver
170 170  
171 -== Pin Mapping & LED ==
182 +**Add ASR6601 256KB Flash to Flash Download**
172 172  
173 -== Example Send & Get Messages via LoRaWAN in PC ==
184 +[[image:image-20230605152412-12.png]]
174 174  
175 -Connect the LA66 LoRa Shield to the PC
176 176  
177 -[[image:image-20220602171217-1.png||height="615" width="915"]]
187 +[[image:image-20230605151851-6.png]]
178 178  
179 -Open the serial port tool
180 180  
181 -[[image:image-20220602161617-8.png]]
190 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
182 182  
183 -[[image:image-20220602161718-9.png||height="529" width="927"]]
184 184  
185 -Press the reset switch RST on the LA66 LoRa Shield.
193 +[[image:image-20230605151851-7.png]]
186 186  
187 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
195 +[[image:image-20230605151851-8.png]]
188 188  
189 -[[image:image-20220602161935-10.png]]
190 190  
191 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
198 +(% 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.**
192 192  
193 -example: AT+SENDB=01,02,8,05820802581ea0a5
194 194  
195 -[[image:image-20220602162157-11.png]]
201 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
196 196  
197 -Check to see if TTN received the message
198 198  
199 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
204 +[[image:image-20230605151851-9.png]]
200 200  
201 -== Example Send & Get Messages via LoRaWAN in RPi ==
202 202  
203 -Connect the LA66 LoRa Shield to the RPI
207 +(% style="color:blue" %)**Click Debug mode to debug.**
204 204  
205 -[[image:image-20220602171233-2.png||height="592" width="881"]]
209 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
206 206  
207 -Log in to the RPI's terminal and connect to the serial port
208 208  
209 -[[image:image-20220602153146-3.png]]
212 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
210 210  
211 -Press the reset switch RST on the LA66 LoRa Shield.
212 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
214 +(% style="display:none" %) (%%)
213 213  
214 -[[image:image-20220602154928-5.png]]
216 += 3.  Order Info =
215 215  
216 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
217 217  
218 -example: AT+SENDB=01,02,8,05820802581ea0a5
219 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
219 219  
220 -[[image:image-20220602160339-6.png]]
221 +(% style="color:blue" %)**XXX**(%%): The default frequency band
221 221  
222 -Check to see if TTN received the message
223 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
224 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
225 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
226 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
227 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
228 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
229 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
230 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
231 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
223 223  
224 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
225 225  
226 -=== Install Minicom ===
227 227  
228 -Enter the following command in the RPI terminal
235 += 4.  FCC Statement =
229 229  
230 -apt update
231 231  
232 -[[image:image-20220602143155-1.png]]
238 +(% style="color:red" %)**FCC Caution:**
233 233  
234 -apt install minicom
240 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
235 235  
236 -[[image:image-20220602143744-2.png]]
242 +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.
237 237  
238 -=== Send PC's CPU/RAM usage to TTN via script. ===
239 239  
240 -==== Take python as an example： ====
245 +(% style="color:red" %)**IMPORTANT NOTE: **
241 241  
242 -===== Preconditions: =====
247 +(% 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:
243 243  
244 -1.LA66 USB LoRaWAN Adapter works fine
249 +—Reorient or relocate the receiving antenna.
245 245  
246 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
251 +—Increase the separation between the equipment and receiver.
247 247  
248 -===== Steps for usage =====
253 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
249 249  
250 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
255 +—Consult the dealer or an experienced radio/TV technician for help.
251 251  
252 -2.Run the script and see the TTN
253 253  
254 -[[image:image-20220602115852-3.png]]
258 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
255 255  
260 +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 -
258 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
259 -
260 -
261 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
262 -
263 263  
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