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Version 162.4 by Xiaoling on 2023/06/05 15:36
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1
2
3 **Table of Contents:**
4
5 {{toc/}}
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7
8
9 = 1.  LA66 LoRaWAN Module =
10
11 == 1.1  What is LA66 LoRaWAN Module ==
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13
14 (((
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16 [[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
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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.
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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.
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36 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
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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.
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46 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
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48 )))
49
50
51 == 1.2  Features ==
52
53
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
66 == 1.3  Specification ==
67
68
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
86
87
88
89 == 1.4  AT Command ==
90
91
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]].
93
94
95 == 1.5  Dimension ==
96
97
98 [[image:image-20220718094750-3.png]]
99
100
101 == 1.6  Pin Mapping ==
102
103 [[image:image-20220720111850-1.png]]
104
105
106 == 1.7  Land Pattern ==
107
108
109 [[image:image-20220517072821-2.png]]
110
111
112 = 2.  FAQ =
113
114 == 2.1  Where to find examples of how to use LA66? ==
115
116
117 (% class="wikigeneratedid" %)
118 Below products are made by LA66. User can use their examples as reference:
119
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]]
122
123
124
125 == 2.2  How to Compile Source Code for LA66? ==
126
127
128 Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
129
130
131 == 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
132
133
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.
135
136
137 == 2.4  Where to find Peer-to-Peer firmware of LA66? ==
138
139
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]]
141
142
143 == 2.5 How can i use J-LInk to debug LA66? ==
144
145
146 (% style="color:#037691" %)**The steps are as follows:**
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148
149 (% style="color:blue" %)**1. Install J-Link software from**
150
151 [[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
152
153
154 (% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
155
156
157 [[image:image-20230605151850-1.png||height="676" width="640"]]
158
159
160 [[image:image-20230605151850-2.png]]
161
162 (% style="display:none" %) (%%)
163
164 (% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
165
166
167 **LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
168
169 **LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
170
171 **LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
172
173 **LA66 GND  < ~-~- > JLINK GND (Pin 8)**
174
175 [[image:image-20230605151850-3.png||height="629" width="1182"]]
176
177 (% style="display:none" %) (%%)
178
179 (% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
180
181 (% style="display:none" %) [[image:image-20230605151850-4.png]]
182
183
184 **Add ASR6601 256KB Flash to Flash Download**
185
186 [[image:image-20230605152412-12.png]]
187
188
189 [[image:image-20230605151851-6.png]]
190
191
192 (% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
193
194
195 [[image:image-20230605151851-7.png]]
196
197 [[image:image-20230605151851-8.png]]
198
199
200 (% 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.**
201
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203 (% style="color:blue" %)**6. Comment the low power function in main.c.**
204
205
206 [[image:image-20230605151851-9.png]]
207
208
209 (% style="color:blue" %)**Click Debug mode to debug.**
210
211 [[image:image-20230605151851-10.png||height="293" width="1275"]]
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213
214 [[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
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216 (% style="display:none" %) (%%)
217
218 = 3.  Order Info =
219
220
221 **Part Number:**  (% style="color:blue" %)**LA66-XXX**
222
223 (% style="color:blue" %)**XXX**(%%): The default frequency band
224
225 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
226 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
227 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
228 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
229 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
230 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
231 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
232 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
233 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
234
235
236
237 = 4.  FCC Statement =
238
239
240 (% style="color:red" %)**FCC Caution:**
241
242 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
243
244 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.
245
246
247 (% style="color:red" %)**IMPORTANT NOTE: **
248
249 (% 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:
250
251 —Reorient or relocate the receiving antenna.
252
253 —Increase the separation between the equipment and receiver.
254
255 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
256
257 —Consult the dealer or an experienced radio/TV technician for help.
258
259
260 (% style="color:red" %)**FCC Radiation Exposure Statement: **
261
262 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.
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264