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Last modified by Xiaoling on 2023/09/19 09:20
From version 65.1
edited by Edwin Chen
on 2022/07/02 23:30
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 -(% 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.
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.
12 12  
13 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
9 += 1.  LA66 LoRaWAN Module =
14 14  
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.
11 +== 1.1  What is LA66 LoRaWAN Module ==
16 16  
17 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
18 18  
19 -== Features ==
14 +(((
15 +(((
16 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 +)))
20 20  
19 +(((
20 +
21 +)))
21 21  
22 -== Specification ==
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 +)))
23 23  
24 -[[image:image-20220517072526-1.png]]
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 +)))
25 25  
26 -Input Power Range: 1.8v ~~ 3.7v
34 +(((
35 +(((
36 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 +)))
27 27  
28 -Power Consumption: < 4uA.
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 +)))
29 29  
30 -Frequency Range: 150 MHz ~~ 960 MHz
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 +)))
31 31  
32 -Maximum Power +22 dBm constant RF output
33 33  
34 -High sensitivity: -148 dBm
51 +== 1.2  Features ==
35 35  
36 -Temperature:
37 37  
38 -* Storage: -55 ~~ +125℃
39 -* Operating: -40 ~~ +85℃
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 -Humidity:
42 42  
43 -* Storage: 5 ~~ 95% (Non-Condensing)
44 -* Operating: 10 ~~ 95% (Non-Condensing)
65 +== 1.3  Specification ==
45 45  
46 -LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
47 47  
48 -LoRa Rx current: <9 mA
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
49 49  
50 -I/O Voltage: 3.3v
51 51  
87 +== 1.4  AT Command ==
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.
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]].
56 56  
92 +== 1.5  Dimension ==
57 57  
58 -== Pin Mapping ==
59 59  
60 -[[image:image-20220523101537-1.png]]
95 +[[image:image-20220718094750-3.png]]
61 61  
62 -== Land Pattern ==
63 63  
64 -[[image:image-20220517072821-2.png]]
98 +== 1.6  Pin Mapping ==
65 65  
100 +[[image:image-20220720111850-1.png]]
66 66  
67 -== Part Number ==
68 68  
69 -Part Number: **LA66-XXX**
103 +== 1.7  Land Pattern ==
70 70  
71 -**XX**: The default frequency band
72 72  
73 -* **AS923**: LoRaWAN AS923 band
74 -* **AU915**: LoRaWAN AU915 band
75 -* **EU433**: LoRaWAN EU433 band
76 -* **EU868**: LoRaWAN EU868 band
77 -* **KR920**: LoRaWAN KR920 band
78 -* **US915**: LoRaWAN US915 band
79 -* **IN865**: LoRaWAN IN865 band
80 -* **CN470**: LoRaWAN CN470 band
106 +[[image:image-20220517072821-2.png]]
81 81  
82 -= LA66 LoRaWAN Shield =
83 83  
84 -LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
109 += 2.  FAQ =
85 85  
86 -== Pin Mapping & LED ==
111 +== 2.1  Where to find examples of how to use LA66? ==
87 87  
88 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
89 89  
90 -== Example: Join TTN network and send an uplink message, get downlink message. ==
114 +(% class="wikigeneratedid" %)
115 +Below products are made by LA66. User can use their examples as reference:
91 91  
92 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
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]]
93 93  
94 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
95 95  
96 -=== what needs to be used ===
121 +== 2.2  How to Compile Source Code for LA66? ==
97 97  
98 -1.LA66 LoRaWAN Shield that needs to be upgraded
99 99  
100 -2.Arduino
124 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
101 101  
102 -3.USB TO TTL
103 103  
104 -[[image:image-20220602100052-2.png]]
127 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
105 105  
106 -=== Wiring Schematic ===
107 107  
108 -[[image:image-20220602101311-3.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.
109 109  
110 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
111 111  
112 -GND  >>>>>>>>>>>>GND
133 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
113 113  
114 -TXD  >>>>>>>>>>>>TXD
115 115  
116 -RXD  >>>>>>>>>>>>RXD
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]]
117 117  
118 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
119 119  
120 -Connect to the PC after connecting the wires
139 +== 2.5 How can i use J-LInk to debug LA66? ==
121 121  
122 -[[image:image-20220602102240-4.png]]
123 123  
124 -=== Upgrade steps ===
142 +(% style="color:#037691" %)**The steps are as follows:**
125 125  
126 -==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
127 127  
128 -[[image:image-20220602102824-5.png]]
145 +(% style="color:blue" %)**1. Install J-Link software from**
129 129  
130 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
147 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
131 131  
132 -[[image:image-20220602104701-12.png]]
133 133  
134 -==== Open the upgrade application software ====
150 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
135 135  
136 -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/]]
137 137  
138 -[[image:image-20220602103227-6.png]]
153 +[[image:image-20230605151850-1.png||height="676" width="640"]]
139 139  
140 -[[image:image-20220602103357-7.png]]
141 141  
142 -===== Select the COM port corresponding to USB TTL =====
156 +[[image:image-20230605151850-2.png]]
143 143  
144 -[[image:image-20220602103844-8.png]]
158 +(% style="display:none" %) (%%)
145 145  
146 -===== Select the bin file to burn =====
160 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
147 147  
148 -[[image:image-20220602104144-9.png]]
149 149  
150 -[[image:image-20220602104251-10.png]]
163 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
151 151  
152 -[[image:image-20220602104402-11.png]]
165 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
153 153  
154 -===== Click to start the download =====
167 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
155 155  
156 -[[image:image-20220602104923-13.png]]
169 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
157 157  
158 -===== The following figure appears to prove that the burning is in progress =====
171 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
159 159  
160 -[[image:image-20220602104948-14.png]]
173 +(% style="display:none" %) (%%)
161 161  
162 -===== The following picture appears to prove that the burning is successful =====
175 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
163 163  
164 -[[image:image-20220602105251-15.png]]
177 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
165 165  
166 -= LA66 USB LoRaWAN Adapter =
167 167  
168 -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.
180 +**Add ASR6601 256KB Flash to Flash Download**
169 169  
170 -Before use, please make sure that the computer has installed the CP2102 driver
182 +[[image:image-20230605152412-12.png]]
171 171  
172 -== Pin Mapping & LED ==
173 173  
174 -== Example Send & Get Messages via LoRaWAN in PC ==
185 +[[image:image-20230605151851-6.png]]
175 175  
176 -Connect the LA66 LoRa Shield to the PC
177 177  
178 -[[image:image-20220602171217-1.png||height="615" width="915"]]
188 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
179 179  
180 -Open the serial port tool
181 181  
182 -[[image:image-20220602161617-8.png]]
191 +[[image:image-20230605151851-7.png]]
183 183  
184 -[[image:image-20220602161718-9.png||height="529" width="927"]]
193 +[[image:image-20230605151851-8.png]]
185 185  
186 -Press the reset switch RST on the LA66 LoRa Shield.
187 187  
188 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
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.**
189 189  
190 -[[image:image-20220602161935-10.png]]
191 191  
192 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
199 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
193 193  
194 -example: AT+SENDB=01,02,8,05820802581ea0a5
195 195  
196 -[[image:image-20220602162157-11.png]]
202 +[[image:image-20230605151851-9.png]]
197 197  
198 -Check to see if TTN received the message
199 199  
200 -[[image:image-20220602162331-12.png||height="547" width="1044"]]
205 +(% style="color:blue" %)**Click Debug mode to debug.**
201 201  
202 -== Example Send & Get Messages via LoRaWAN in RPi ==
207 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
203 203  
204 -Connect the LA66 LoRa Shield to the RPI
205 205  
206 -[[image:image-20220602171233-2.png||height="592" width="881"]]
210 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
207 207  
208 -Log in to the RPI's terminal and connect to the serial port
212 +(% style="display:none" %) (%%)
209 209  
210 -[[image:image-20220602153146-3.png]]
214 += 3.  Order Info =
211 211  
212 -Press the reset switch RST on the LA66 LoRa Shield.
213 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
214 214  
215 -[[image:image-20220602154928-5.png]]
217 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
216 216  
217 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
219 +(% style="color:blue" %)**XXX**(%%): The default frequency band
218 218  
219 -example: AT+SENDB=01,02,8,05820802581ea0a5
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
220 220  
221 -[[image:image-20220602160339-6.png]]
222 222  
223 -Check to see if TTN received the message
232 += 4.  FCC Statement =
224 224  
225 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
226 226  
227 -=== Install Minicom ===
235 +(% style="color:red" %)**FCC Caution:**
228 228  
229 -Enter the following command in the RPI terminal
237 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
230 230  
231 -apt update
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.
232 232  
233 -[[image:image-20220602143155-1.png]]
234 234  
235 -apt install minicom
242 +(% style="color:red" %)**IMPORTANT NOTE: **
236 236  
237 -[[image:image-20220602143744-2.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:
238 238  
239 -=== Send PC's CPU/RAM usage to TTN via script. ===
246 +—Reorient or relocate the receiving antenna.
240 240  
241 -==== Take python as an example： ====
248 +—Increase the separation between the equipment and receiver.
242 242  
243 -===== Preconditions: =====
250 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
244 244  
245 -1.LA66 USB LoRaWAN Adapter works fine
252 +—Consult the dealer or an experienced radio/TV technician for help.
246 246  
247 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
248 248  
249 -===== Steps for usage =====
255 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
250 250  
251 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
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.
252 252  
253 -2.Run the script and see the TTN
254 -
255 -[[image:image-20220602115852-3.png]]
256 -
257 -
258 -
259 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
260 -
261 -
262 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
263 -
264 264  
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