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Version 162.2 by Xiaoling on 2023/06/05 15:32
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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 ==
12
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 == 1.3  Specification ==
65
66
67 * CPU: 32-bit 48 MHz
68 * Flash: 256KB
69 * RAM: 64KB
70 * Input Power Range: 1.8v ~~ 3.7v
71 * Power Consumption: < 4uA.
72 * Frequency Range: 150 MHz ~~ 960 MHz
73 * Maximum Power +22 dBm constant RF output
74 * High sensitivity: -148 dBm
75 * Temperature:
76 ** Storage: -55 ~~ +125℃
77 ** Operating: -40 ~~ +85℃
78 * Humidity:
79 ** Storage: 5 ~~ 95% (Non-Condensing)
80 ** Operating: 10 ~~ 95% (Non-Condensing)
81 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
82 * LoRa Rx current: <9 mA
83 * I/O Voltage: 3.3v
84
85 == 1.4  AT Command ==
86
87
88 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]].
89
90
91 == 1.5  Dimension ==
92
93
94 [[image:image-20220718094750-3.png]]
95
96
97 == 1.6  Pin Mapping ==
98
99 [[image:image-20220720111850-1.png]]
100
101
102 == 1.7  Land Pattern ==
103
104
105 [[image:image-20220517072821-2.png]]
106
107
108 = 2.  FAQ =
109
110 == 2.1  Where to find examples of how to use LA66? ==
111
112
113 (% class="wikigeneratedid" %)
114 Below products are made by LA66. User can use their examples as reference:
115
116 * [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
117 * [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
118
119 == 2.2  How to Compile Source Code for LA66? ==
120
121
122 Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
123
124
125 == 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
126
127
128 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.
129
130
131 == 2.4  Where to find Peer-to-Peer firmware of LA66? ==
132
133
134 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]]
135
136
137 == 2.5 How can i use J-LInk to debug LA66? ==
138
139
140 (% style="color:#037691" %)**The steps are as follows:**
141
142
143 (% style="color:blue" %)**1. Install J-Link software from**
144
145 [[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
146
147
148 (% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
149
150
151 [[image:image-20230605151850-1.png]]
152
153
154 [[image:image-20230605151850-2.png]]
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156
157 (% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
158
159 **LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
160
161 **LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
162
163 **LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
164
165 **LA66 GND  < ~-~- > JLINK GND (Pin 8)**
166
167 [[image:image-20230605151850-3.png||height="629" width="1182"]]
168
169 (% style="display:none" %) (%%)
170
171 (% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
172
173 (% style="display:none" %) [[image:image-20230605151850-4.png]]
174
175
176 (% style="color:blue" %)**Add ASR6601 256KB Flash to Flash Download**
177
178 [[image:image-20230605152412-12.png]]
179
180
181 [[image:image-20230605151851-6.png]]
182
183
184 (% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
185
186 [[image:image-20230605151851-7.png]]
187
188 [[image:image-20230605151851-8.png]]
189
190
191 (% 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
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194 (% style="color:blue" %)**6. Comment the low power function in main.c.**
195
196
197 [[image:image-20230605151851-9.png]]
198
199
200 (% style="color:blue" %)**Click Debug mode to debug.**
201
202 [[image:image-20230605151851-10.png||height="293" width="1275"]]
203
204
205 [[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
206
207 (% style="display:none" %) (%%)
208
209 = 3.  Order Info =
210
211
212 **Part Number:**  (% style="color:blue" %)**LA66-XXX**
213
214 (% style="color:blue" %)**XXX**(%%): The default frequency band
215
216 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
217 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
218 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
219 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
220 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
221 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
222 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
223 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
224 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
225
226 = 4.  FCC Statement =
227
228
229 (% style="color:red" %)**FCC Caution:**
230
231 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
232
233 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.
234
235
236 (% style="color:red" %)**IMPORTANT NOTE: **
237
238 (% 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:
239
240 —Reorient or relocate the receiving antenna.
241
242 —Increase the separation between the equipment and receiver.
243
244 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
245
246 —Consult the dealer or an experienced radio/TV technician for help.
247
248
249 (% style="color:red" %)**FCC Radiation Exposure Statement: **
250
251 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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253