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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 162.5
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**"}}
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:
65 +== 1.3  Specification ==
41 41  
42 -* Storage: 5 ~~ 95% (Non-Condensing)
43 -* Operating: 10 ~~ 95% (Non-Condensing)
44 44  
45 -LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
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
46 46  
47 -LoRa Rx current: <9 mA
48 48  
49 -I/O Voltage: 3.3v
87 +== 1.4  AT Command ==
50 50  
51 51  
52 -== AT Command ==
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]].
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.
92 +== 1.5  Dimension ==
55 55  
56 56  
57 -== Pin Mapping ==
95 +[[image:image-20220718094750-3.png]]
58 58  
59 -[[image:image-20220523101537-1.png]]
60 60  
61 -== Land Pattern ==
98 +== 1.6  Pin Mapping ==
62 62  
63 -[[image:image-20220517072821-2.png]]
100 +[[image:image-20220720111850-1.png]]
64 64  
65 65  
66 -== Part Number ==
103 +== 1.7  Land Pattern ==
67 67  
68 -Part Number: **LA66-XXX**
69 69  
70 -**XX**: The default frequency band
106 +[[image:image-20220517072821-2.png]]
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
80 80  
81 -= LA66 LoRaWAN Shield =
109 += 2.  FAQ =
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.
111 +== 2.1  Where to find examples of how to use LA66? ==
84 84  
85 -== Pin Mapping & LED ==
86 86  
87 -== 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:
88 88  
89 -== 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]]
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 ==
121 +== 2.2  How to Compile Source Code for LA66? ==
94 94  
95 -=== what needs to be used ===
96 96  
97 -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]]
98 98  
99 -2.Arduino
100 100  
101 -3.USB TO TTL
127 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
102 102  
103 -[[image:image-20220602100052-2.png]]
104 104  
105 -=== 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.
106 106  
107 -[[image:image-20220602101311-3.png]]
108 108  
109 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
133 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
110 110  
111 -GND  >>>>>>>>>>>>GND
112 112  
113 -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]]
114 114  
115 -RXD  >>>>>>>>>>>>RXD
116 116  
117 -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? ==
118 118  
119 -Connect to the PC after connecting the wires
120 120  
121 -[[image:image-20220602102240-4.png]]
142 +(% style="color:#037691" %)**The steps are as follows:**
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 ====
145 +(% style="color:blue" %)**1. Install J-Link software from**
126 126  
127 -[[image:image-20220602102824-5.png]]
147 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
128 128  
129 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
130 130  
131 -[[image:image-20220602104701-12.png]]
150 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
132 132  
133 -==== Open the upgrade application software ====
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/]]
153 +[[image:image-20230605151850-1.png||height="676" width="640"]]
136 136  
137 -[[image:image-20220602103227-6.png]]
138 138  
139 -[[image:image-20220602103357-7.png]]
156 +[[image:image-20230605151850-2.png]]
140 140  
141 -===== Select the COM port corresponding to USB TTL =====
158 +(% style="display:none" %) (%%)
142 142  
143 -[[image:image-20220602103844-8.png]]
160 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
144 144  
145 -===== Select the bin file to burn =====
146 146  
147 -[[image:image-20220602104144-9.png]]
163 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
148 148  
149 -[[image:image-20220602104251-10.png]]
165 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
150 150  
151 -[[image:image-20220602104402-11.png]]
167 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
152 152  
153 -===== Click to start the download =====
169 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
154 154  
155 -[[image:image-20220602104923-13.png]]
171 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
156 156  
157 -===== The following figure appears to prove that the burning is in progress =====
173 +(% style="display:none" %) (%%)
158 158  
159 -[[image:image-20220602104948-14.png]]
175 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
160 160  
161 -===== The following picture appears to prove that the burning is successful =====
177 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
162 162  
163 -[[image:image-20220602105251-15.png]]
164 164  
165 -= LA66 USB LoRaWAN Adapter =
180 +**Add ASR6601 256KB Flash to Flash Download**
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.
182 +[[image:image-20230605152412-12.png]]
168 168  
169 -Before use, please make sure that the computer has installed the CP2102 driver
170 170  
171 -== Pin Mapping & LED ==
185 +[[image:image-20230605151851-6.png]]
172 172  
173 -== Example Send & Get Messages via LoRaWAN in PC ==
174 174  
175 -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.**
176 176  
177 -[[image:image-20220602171217-1.png||height="615" width="915"]]
178 178  
179 -Open the serial port tool
191 +[[image:image-20230605151851-7.png]]
180 180  
181 -[[image:image-20220602161617-8.png]]
193 +[[image:image-20230605151851-8.png]]
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.
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.**
186 186  
187 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
188 188  
189 -[[image:image-20220602161935-10.png]]
199 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
190 190  
191 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
192 192  
193 -example: AT+SENDB=01,02,8,05820802581ea0a5
202 +[[image:image-20230605151851-9.png]]
194 194  
195 -[[image:image-20220602162157-11.png]]
196 196  
197 -Check to see if TTN received the message
205 +(% style="color:blue" %)**Click Debug mode to debug.**
198 198  
199 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
207 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
200 200  
201 -== Example Send & Get Messages via LoRaWAN in RPi ==
202 202  
203 -Connect the LA66 LoRa Shield to the RPI
210 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
204 204  
205 -[[image:image-20220602171233-2.png||height="592" width="881"]]
212 +(% style="display:none" %) (%%)
206 206  
207 -Log in to the RPI's terminal and connect to the serial port
214 += 3.  Order Info =
208 208  
209 -[[image:image-20220602153146-3.png]]
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
217 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
213 213  
214 -[[image:image-20220602154928-5.png]]
219 +(% style="color:blue" %)**XXX**(%%): The default frequency band
215 215  
216 -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
217 217  
218 -example: AT+SENDB=01,02,8,05820802581ea0a5
219 219  
220 -[[image:image-20220602160339-6.png]]
232 += 4.  FCC Statement =
221 221  
222 -Check to see if TTN received the message
223 223  
224 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
235 +(% style="color:red" %)**FCC Caution:**
225 225  
226 -=== 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.
227 227  
228 -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.
229 229  
230 -apt update
231 231  
232 -[[image:image-20220602143155-1.png]]
242 +(% style="color:red" %)**IMPORTANT NOTE: **
233 233  
234 -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:
235 235  
236 -[[image:image-20220602143744-2.png]]
246 +—Reorient or relocate the receiving antenna.
237 237  
238 -=== Send PC's CPU/RAM usage to TTN via script. ===
248 +—Increase the separation between the equipment and receiver.
239 239  
240 -==== Take python as an example： ====
250 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
241 241  
242 -===== Preconditions: =====
252 +—Consult the dealer or an experienced radio/TV technician for help.
243 243  
244 -1.LA66 USB LoRaWAN Adapter works fine
245 245  
246 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
255 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
247 247  
248 -===== 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.
249 249  
250 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
251 -
252 -2.Run the script and see the TTN
253 -
254 -[[image:image-20220602115852-3.png]]
255 -
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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