Version 162.5 by Xiaoling on 2023/09/18 16:35
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1
2
3 **Table of Contents:**
4
5 {{toc/}}
6
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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19 (((
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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 == 1.3  Specification ==
66
67
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
85
86
87 == 1.4  AT Command ==
88
89
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]].
91
92 == 1.5  Dimension ==
93
94
95 [[image:image-20220718094750-3.png]]
96
97
98 == 1.6  Pin Mapping ==
99
100 [[image:image-20220720111850-1.png]]
101
102
103 == 1.7  Land Pattern ==
104
105
106 [[image:image-20220517072821-2.png]]
107
108
109 = 2.  FAQ =
110
111 == 2.1  Where to find examples of how to use LA66? ==
112
113
114 (% class="wikigeneratedid" %)
115 Below products are made by LA66. User can use their examples as reference:
116
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]]
119
120
121 == 2.2  How to Compile Source Code for LA66? ==
122
123
124 Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
125
126
127 == 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
128
129
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.
131
132
133 == 2.4  Where to find Peer-to-Peer firmware of LA66? ==
134
135
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]]
137
138
139 == 2.5 How can i use J-LInk to debug LA66? ==
140
141
142 (% style="color:#037691" %)**The steps are as follows:**
143
144
145 (% style="color:blue" %)**1. Install J-Link software from**
146
147 [[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
148
149
150 (% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
151
152
153 [[image:image-20230605151850-1.png||height="676" width="640"]]
154
155
156 [[image:image-20230605151850-2.png]]
157
158 (% style="display:none" %) (%%)
159
160 (% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
161
162
163 **LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
164
165 **LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
166
167 **LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
168
169 **LA66 GND  < ~-~- > JLINK GND (Pin 8)**
170
171 [[image:image-20230605151850-3.png||height="629" width="1182"]]
172
173 (% style="display:none" %) (%%)
174
175 (% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
176
177 (% style="display:none" %) [[image:image-20230605151850-4.png]]
178
179
180 **Add ASR6601 256KB Flash to Flash Download**
181
182 [[image:image-20230605152412-12.png]]
183
184
185 [[image:image-20230605151851-6.png]]
186
187
188 (% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
189
190
191 [[image:image-20230605151851-7.png]]
192
193 [[image:image-20230605151851-8.png]]
194
195
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.**
197
198
199 (% style="color:blue" %)**6. Comment the low power function in main.c.**
200
201
202 [[image:image-20230605151851-9.png]]
203
204
205 (% style="color:blue" %)**Click Debug mode to debug.**
206
207 [[image:image-20230605151851-10.png||height="293" width="1275"]]
208
209
210 [[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
211
212 (% style="display:none" %) (%%)
213
214 = 3.  Order Info =
215
216
217 **Part Number:**  (% style="color:blue" %)**LA66-XXX**
218
219 (% style="color:blue" %)**XXX**(%%): The default frequency band
220
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
230
231
232 = 4.  FCC Statement =
233
234
235 (% style="color:red" %)**FCC Caution:**
236
237 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
238
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.
240
241
242 (% style="color:red" %)**IMPORTANT NOTE: **
243
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:
245
246 —Reorient or relocate the receiving antenna.
247
248 —Increase the separation between the equipment and receiver.
249
250 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
251
252 —Consult the dealer or an experienced radio/TV technician for help.
253
254
255 (% style="color:red" %)**FCC Radiation Exposure Statement: **
256
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.
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259

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