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Last modified by Xiaoling on 2023/09/19 09:20
From version 148.6
edited by Xiaoling
on 2022/10/10 11:31
Change comment: There is no comment for this version
To version 63.1
edited by Herong Lu
on 2022/06/02 17:23
Change comment: There is no comment for this version

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1 -LA66 LoRaWAN Module User Manual
1 +LA66 LoRaWAN Module
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1 -XWiki.Xiaoling
1 +XWiki.Lu
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1 -
1 +{{box cssClass="floatinginfobox" title="**Contents**"}}
2 +{{toc/}}
3 +{{/box}}
2 2  
3 -**Table of Contents:**
5 += LA66 LoRaWAN Module =
4 4  
5 -{{toc/}}
7 +== What is LA66 LoRaWAN Module ==
6 6  
9 +**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 LoRa 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 program, create and connect your things everywhere.
7 7  
11 +**LA66 **is a ready-to-use module which includes the LoRaWAN v1.0.4 protocol. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
8 8  
9 -= 1.  LA66 LoRaWAN Module =
13 +**Each LA66 **module includes a world unique OTAA key for LoRaWAN registration.
10 10  
11 11  
12 -== 1.1  What is LA66 LoRaWAN Module ==
13 13  
17 +== Specification ==
14 14  
15 -(((
16 -(((
17 -[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 -)))
19 +[[image:image-20220517072526-1.png]]
19 19  
20 -(((
21 -
22 -)))
21 +Input Power Range: 1.8v ~~ 3.7v
23 23  
24 -(((
25 -(% 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.
26 -)))
27 -)))
23 +Power Consumption: < 4uA.
28 28  
29 -(((
30 -(((
31 -(% 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.
32 -)))
33 -)))
25 +Frequency Range: 150 MHz ~~ 960 MHz
34 34  
35 -(((
36 -(((
37 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
38 -)))
27 +Maximum Power +22 dBm constant RF output
39 39  
40 -(((
41 -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.
42 -)))
43 -)))
29 +High sensitivity: -148 dBm
44 44  
45 -(((
46 -(((
47 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 -)))
49 -)))
31 +Temperature:
50 50  
33 +* Storage: -55 ~~ +125℃
34 +* Operating: -40 ~~ +85℃
51 51  
36 +Humidity:
52 52  
53 -== 1.2  Features ==
38 +* Storage: 5 ~~ 95% (Non-Condensing)
39 +* Operating: 10 ~~ 95% (Non-Condensing)
54 54  
41 +LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
55 55  
56 -* Support LoRaWAN v1.0.3 protocol
57 -* Support peer-to-peer protocol
58 -* TCXO crystal to ensure RF performance on low temperature
59 -* SMD Antenna pad and i-pex antenna connector
60 -* Available in different frequency LoRaWAN frequency bands.
61 -* World-wide unique OTAA keys.
62 -* AT Command via UART-TTL interface
63 -* Firmware upgradable via UART interface
64 -* Ultra-long RF range
43 +LoRa Rx current: <9 mA
65 65  
45 +I/O Voltage: 3.3v
66 66  
67 -== 1.3  Specification ==
68 68  
48 +== AT Command ==
69 69  
70 -* CPU: 32-bit 48 MHz
71 -* Flash: 256KB
72 -* RAM: 64KB
73 -* Input Power Range: 1.8v ~~ 3.7v
74 -* Power Consumption: < 4uA.
75 -* Frequency Range: 150 MHz ~~ 960 MHz
76 -* Maximum Power +22 dBm constant RF output
77 -* High sensitivity: -148 dBm
78 -* Temperature:
79 -** Storage: -55 ~~ +125℃
80 -** Operating: -40 ~~ +85℃
81 -* Humidity:
82 -** Storage: 5 ~~ 95% (Non-Condensing)
83 -** Operating: 10 ~~ 95% (Non-Condensing)
84 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
85 -* LoRa Rx current: <9 mA
86 -* I/O Voltage: 3.3v
50 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
87 87  
88 88  
89 -== 1.4  AT Command ==
53 +== Pin Mapping ==
90 90  
55 +[[image:image-20220523101537-1.png]]
91 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]].
57 +== Land Pattern ==
93 93  
59 +[[image:image-20220517072821-2.png]]
94 94  
95 95  
96 -== 1.5  Dimension ==
62 +== Part Number ==
97 97  
64 +Part Number: **LA66-XXX**
98 98  
99 -[[image:image-20220718094750-3.png]]
66 +**XX**: The default frequency band
100 100  
68 +* **AS923**: LoRaWAN AS923 band
69 +* **AU915**: LoRaWAN AU915 band
70 +* **EU433**: LoRaWAN EU433 band
71 +* **EU868**: LoRaWAN EU868 band
72 +* **KR920**: LoRaWAN KR920 band
73 +* **US915**: LoRaWAN US915 band
74 +* **IN865**: LoRaWAN IN865 band
75 +* **CN470**: LoRaWAN CN470 band
101 101  
77 += LA66 LoRaWAN Shield =
102 102  
103 -== 1.6  Pin Mapping ==
79 +LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
104 104  
105 -[[image:image-20220720111850-1.png]]
81 +== Pin Mapping & LED ==
106 106  
83 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
107 107  
85 +== Example: Join TTN network and send an uplink message, get downlink message. ==
108 108  
109 -== 1.7  Land Pattern ==
87 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
110 110  
89 +== Upgrade Firmware of LA66 LoRaWAN Shield ==
111 111  
112 -[[image:image-20220517072821-2.png]]
91 +=== what needs to be used ===
113 113  
93 +1.LA66 LoRaWAN Shield that needs to be upgraded
114 114  
95 +2.Arduino
115 115  
116 -= 2.  FAQ =
97 +3.USB TO TTL
117 117  
99 +[[image:image-20220602100052-2.png]]
118 118  
119 -== 2.1  How to Compile Source Code for LA66? ==
101 +=== Wiring Schematic ===
120 120  
103 +[[image:image-20220602101311-3.png]]
121 121  
122 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
105 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
123 123  
107 +GND  >>>>>>>>>>>>GND
124 124  
109 +TXD  >>>>>>>>>>>>TXD
125 125  
126 -== 2.2 Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
111 +RXD  >>>>>>>>>>>>RXD
127 127  
113 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
128 128  
129 -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.
115 +Connect to the PC after connecting the wires
130 130  
117 +[[image:image-20220602102240-4.png]]
131 131  
119 +=== Upgrade steps ===
132 132  
133 -== 2.3  Where to find Peer-to-Peer firmware of LA66? ==
121 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
134 134  
123 +[[image:image-20220602102824-5.png]]
135 135  
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]]
125 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
137 137  
127 +[[image:image-20220602104701-12.png]]
138 138  
129 +==== Open the upgrade application software ====
139 139  
140 -= 3.  Order Info =
131 +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/]]
141 141  
133 +[[image:image-20220602103227-6.png]]
142 142  
143 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
135 +[[image:image-20220602103357-7.png]]
144 144  
137 +===== Select the COM port corresponding to USB TTL =====
145 145  
146 -(% style="color:blue" %)**XXX**(%%): The default frequency band
139 +[[image:image-20220602103844-8.png]]
147 147  
148 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
149 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
150 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
151 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
152 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
153 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
154 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
155 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
156 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
141 +===== Select the bin file to burn =====
157 157  
143 +[[image:image-20220602104144-9.png]]
158 158  
145 +[[image:image-20220602104251-10.png]]
159 159  
160 -= 4.  FCC Statement =
147 +[[image:image-20220602104402-11.png]]
161 161  
149 +===== Click to start the download =====
162 162  
163 -**(% style="color:red" %)FCC Caution:**
151 +[[image:image-20220602104923-13.png]]
164 164  
153 +===== The following figure appears to prove that the burning is in progress =====
165 165  
166 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
155 +[[image:image-20220602104948-14.png]]
167 167  
157 +===== The following picture appears to prove that the burning is successful =====
168 168  
169 -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.
159 +[[image:image-20220602105251-15.png]]
170 170  
161 += LA66 USB LoRaWAN Adapter =
171 171  
172 -**(% style="color:red" %)IMPORTANT NOTE: **
163 +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.
173 173  
165 +Before use, please make sure that the computer has installed the CP2102 driver
174 174  
175 -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:
167 +== Pin Mapping & LED ==
176 176  
169 +== Example Send & Get Messages via LoRaWAN in PC ==
177 177  
178 -—Reorient or relocate the receiving antenna.
171 +Connect the LA66 LoRa Shield to the PC
179 179  
173 +[[image:image-20220602171217-1.png||height="615" width="915"]]
180 180  
181 -—Increase the separation between the equipment and receiver.
175 +Open the serial port tool
182 182  
177 +[[image:image-20220602161617-8.png]]
183 183  
184 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
179 +[[image:image-20220602161718-9.png||height="529" width="927"]]
185 185  
181 +Press the reset switch RST on the LA66 LoRa Shield.
186 186  
187 -—Consult the dealer or an experienced radio/TV technician for help.
183 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
188 188  
185 +[[image:image-20220602161935-10.png]]
189 189  
190 -**(% style="color:red" %)FCC Radiation Exposure Statement: **
187 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
191 191  
192 -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.
189 +example: AT+SENDB=01,02,8,05820802581ea0a5
190 +
191 +[[image:image-20220602162157-11.png]]
192 +
193 +Check to see if TTN received the message
194 +
195 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
196 +
197 +== Example Send & Get Messages via LoRaWAN in RPi ==
198 +
199 +Connect the LA66 LoRa Shield to the RPI
200 +
201 +[[image:image-20220602171233-2.png||height="592" width="881"]]
202 +
203 +Log in to the RPI's terminal and connect to the serial port
204 +
205 +[[image:image-20220602153146-3.png]]
206 +
207 +Press the reset switch RST on the LA66 LoRa Shield.
208 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
209 +
210 +[[image:image-20220602154928-5.png]]
211 +
212 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
213 +
214 +example: AT+SENDB=01,02,8,05820802581ea0a5
215 +
216 +[[image:image-20220602160339-6.png]]
217 +
218 +Check to see if TTN received the message
219 +
220 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
221 +
222 +=== Install Minicom ===
223 +
224 +Enter the following command in the RPI terminal
225 +
226 +apt update
227 +
228 +[[image:image-20220602143155-1.png]]
229 +
230 +apt install minicom
231 +
232 +[[image:image-20220602143744-2.png]]
233 +
234 +=== Send PC's CPU/RAM usage to TTN via script. ===
235 +
236 +==== Take python as an example： ====
237 +
238 +===== Preconditions: =====
239 +
240 +1.LA66 USB LoRaWAN Adapter works fine
241 +
242 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
243 +
244 +===== Steps for usage =====
245 +
246 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
247 +
248 +2.Run the script and see the TTN
249 +
250 +[[image:image-20220602115852-3.png]]
251 +
252 +
253 +
254 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
255 +
256 +
257 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
258 +
259 +
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