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Last modified by Xiaoling on 2023/09/19 09:20
From version 66.1
edited by Edwin Chen
on 2022/07/02 23:32
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 -== Features ==
20 20  
51 +== 1.2  Features ==
21 21  
22 -== Specification ==
23 23  
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
63 +
64 +
65 +== 1.3  Specification ==
66 +
67 +
68 +* CPU: 32-bit 48 MHz
69 +* Flash: 256KB
70 +* RAM: 64KB
24 24  * Input Power Range: 1.8v ~~ 3.7v
25 25  * Power Consumption: < 4uA.
26 26  * Frequency Range: 150 MHz ~~ 960 MHz
... ... @@ -37,220 +37,176 @@
37 37  * I/O Voltage: 3.3v
38 38  
39 39  
40 -== AT Command ==
87 +== 1.4  AT Command ==
41 41  
42 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
43 43  
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]].
44 44  
45 -== Dimension ==
92 +== 1.5  Dimension ==
46 46  
47 -[[image:image-20220517072526-1.png]]
48 48  
95 +[[image:image-20220718094750-3.png]]
49 49  
50 -== Pin Mapping ==
51 51  
52 -[[image:image-20220523101537-1.png]]
98 +== 1.6  Pin Mapping ==
53 53  
54 -== Land Pattern ==
100 +[[image:image-20220720111850-1.png]]
55 55  
56 -[[image:image-20220517072821-2.png]]
57 57  
103 +== 1.7  Land Pattern ==
58 58  
59 -== Part Number ==
60 60  
61 -Part Number: **LA66-XXX**
106 +[[image:image-20220517072821-2.png]]
62 62  
63 -**XX**: The default frequency band
64 64  
65 -* **AS923**: LoRaWAN AS923 band
66 -* **AU915**: LoRaWAN AU915 band
67 -* **EU433**: LoRaWAN EU433 band
68 -* **EU868**: LoRaWAN EU868 band
69 -* **KR920**: LoRaWAN KR920 band
70 -* **US915**: LoRaWAN US915 band
71 -* **IN865**: LoRaWAN IN865 band
72 -* **CN470**: LoRaWAN CN470 band
109 += 2.  FAQ =
73 73  
74 -= LA66 LoRaWAN Shield =
111 +== 2.1  Where to find examples of how to use LA66? ==
75 75  
76 -LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
77 77  
78 -== Pin Mapping & LED ==
114 +(% class="wikigeneratedid" %)
115 +Below products are made by LA66. User can use their examples as reference:
79 79  
80 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
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]]
81 81  
82 -== Example: Join TTN network and send an uplink message, get downlink message. ==
83 83  
84 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
121 +== 2.2  How to Compile Source Code for LA66? ==
85 85  
86 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
87 87  
88 -=== what needs to be used ===
124 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
89 89  
90 -1.LA66 LoRaWAN Shield that needs to be upgraded
91 91  
92 -2.Arduino
127 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
93 93  
94 -3.USB TO TTL
95 95  
96 -[[image:image-20220602100052-2.png]]
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.
97 97  
98 -=== Wiring Schematic ===
99 99  
100 -[[image:image-20220602101311-3.png]]
133 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
101 101  
102 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
103 103  
104 -GND  >>>>>>>>>>>>GND
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]]
105 105  
106 -TXD  >>>>>>>>>>>>TXD
107 107  
108 -RXD  >>>>>>>>>>>>RXD
139 +== 2.5 How can i use J-LInk to debug LA66? ==
109 109  
110 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
111 111  
112 -Connect to the PC after connecting the wires
142 +(% style="color:#037691" %)**The steps are as follows:**
113 113  
114 -[[image:image-20220602102240-4.png]]
115 115  
116 -=== Upgrade steps ===
145 +(% style="color:blue" %)**1. Install J-Link software from**
117 117  
118 -==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
147 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
119 119  
120 -[[image:image-20220602102824-5.png]]
121 121  
122 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
150 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
123 123  
124 -[[image:image-20220602104701-12.png]]
125 125  
126 -==== Open the upgrade application software ====
153 +[[image:image-20230605151850-1.png||height="676" width="640"]]
127 127  
128 -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/]]
129 129  
130 -[[image:image-20220602103227-6.png]]
156 +[[image:image-20230605151850-2.png]]
131 131  
132 -[[image:image-20220602103357-7.png]]
158 +(% style="display:none" %) (%%)
133 133  
134 -===== Select the COM port corresponding to USB TTL =====
160 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
135 135  
136 -[[image:image-20220602103844-8.png]]
137 137  
138 -===== Select the bin file to burn =====
163 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
139 139  
140 -[[image:image-20220602104144-9.png]]
165 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
141 141  
142 -[[image:image-20220602104251-10.png]]
167 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
143 143  
144 -[[image:image-20220602104402-11.png]]
169 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
145 145  
146 -===== Click to start the download =====
171 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
147 147  
148 -[[image:image-20220602104923-13.png]]
173 +(% style="display:none" %) (%%)
149 149  
150 -===== The following figure appears to prove that the burning is in progress =====
175 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
151 151  
152 -[[image:image-20220602104948-14.png]]
177 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
153 153  
154 -===== The following picture appears to prove that the burning is successful =====
155 155  
156 -[[image:image-20220602105251-15.png]]
180 +**Add ASR6601 256KB Flash to Flash Download**
157 157  
158 -= LA66 USB LoRaWAN Adapter =
182 +[[image:image-20230605152412-12.png]]
159 159  
160 -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.
161 161  
162 -Before use, please make sure that the computer has installed the CP2102 driver
185 +[[image:image-20230605151851-6.png]]
163 163  
164 -== Pin Mapping & LED ==
165 165  
166 -== Example Send & Get Messages via LoRaWAN in PC ==
188 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
167 167  
168 -Connect the LA66 LoRa Shield to the PC
169 169  
170 -[[image:image-20220602171217-1.png||height="615" width="915"]]
191 +[[image:image-20230605151851-7.png]]
171 171  
172 -Open the serial port tool
193 +[[image:image-20230605151851-8.png]]
173 173  
174 -[[image:image-20220602161617-8.png]]
175 175  
176 -[[image:image-20220602161718-9.png||height="529" width="927"]]
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.**
177 177  
178 -Press the reset switch RST on the LA66 LoRa Shield.
179 179  
180 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
199 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
181 181  
182 -[[image:image-20220602161935-10.png]]
183 183  
184 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
202 +[[image:image-20230605151851-9.png]]
185 185  
186 -example: AT+SENDB=01,02,8,05820802581ea0a5
187 187  
188 -[[image:image-20220602162157-11.png]]
205 +(% style="color:blue" %)**Click Debug mode to debug.**
189 189  
190 -Check to see if TTN received the message
207 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
191 191  
192 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
193 193  
194 -== Example Send & Get Messages via LoRaWAN in RPi ==
210 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
195 195  
196 -Connect the LA66 LoRa Shield to the RPI
212 +(% style="display:none" %) (%%)
197 197  
198 -[[image:image-20220602171233-2.png||height="592" width="881"]]
214 += 3.  Order Info =
199 199  
200 -Log in to the RPI's terminal and connect to the serial port
201 201  
202 -[[image:image-20220602153146-3.png]]
217 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
203 203  
204 -Press the reset switch RST on the LA66 LoRa Shield.
205 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
219 +(% style="color:blue" %)**XXX**(%%): The default frequency band
206 206  
207 -[[image:image-20220602154928-5.png]]
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
208 208  
209 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
210 210  
211 -example: AT+SENDB=01,02,8,05820802581ea0a5
232 += 4.  FCC Statement =
212 212  
213 -[[image:image-20220602160339-6.png]]
214 214  
215 -Check to see if TTN received the message
235 +(% style="color:red" %)**FCC Caution:**
216 216  
217 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
237 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
218 218  
219 -=== 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.
220 220  
221 -Enter the following command in the RPI terminal
222 222  
223 -apt update
242 +(% style="color:red" %)**IMPORTANT NOTE: **
224 224  
225 -[[image:image-20220602143155-1.png]]
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:
226 226  
227 -apt install minicom
246 +—Reorient or relocate the receiving antenna.
228 228  
229 -[[image:image-20220602143744-2.png]]
248 +—Increase the separation between the equipment and receiver.
230 230  
231 -=== Send PC's CPU/RAM usage to TTN via script. ===
250 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
232 232  
233 -==== Take python as an example： ====
252 +—Consult the dealer or an experienced radio/TV technician for help.
234 234  
235 -===== Preconditions: =====
236 236  
237 -1.LA66 USB LoRaWAN Adapter works fine
255 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
238 238  
239 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
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.
240 240  
241 -===== Steps for usage =====
242 -
243 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
244 -
245 -2.Run the script and see the TTN
246 -
247 -[[image:image-20220602115852-3.png]]
248 -
249 -
250 -
251 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
252 -
253 -
254 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
255 -
256 256  
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