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Last modified by Xiaoling on 2023/09/19 09:20
From version 149.1
edited by Edwin Chen
on 2022/10/21 11:04
Change comment: There is no comment for this version
To version 62.1
edited by Herong Lu
on 2022/06/02 17:19
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.Edwin
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 -(% class="wikigeneratedid" %)
120 -== 2.1 Where to find examples of how to use LA66? ==
101 +=== Wiring Schematic ===
121 121  
122 -(% class="wikigeneratedid" %)
123 -Below products are made by LA66. User can use their examples as reference:
103 +[[image:image-20220602101311-3.png]]
124 124  
125 -* LA66 Shield for Arduino
126 -* LA66 USB Adapter
105 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
127 127  
107 +GND  >>>>>>>>>>>>GND
128 128  
109 +TXD  >>>>>>>>>>>>TXD
129 129  
130 -== 2.2  How to Compile Source Code for LA66? ==
111 +RXD  >>>>>>>>>>>>RXD
131 131  
113 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
132 132  
133 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
115 +Connect to the PC after connecting the wires
134 134  
117 +[[image:image-20220602102240-4.png]]
135 135  
119 +=== Upgrade steps ===
136 136  
137 -== 2.3 Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
121 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
138 138  
123 +[[image:image-20220602102824-5.png]]
139 139  
140 -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.
125 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
141 141  
127 +[[image:image-20220602104701-12.png]]
142 142  
129 +==== Open the upgrade application software ====
143 143  
144 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
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/]]
145 145  
133 +[[image:image-20220602103227-6.png]]
146 146  
147 -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 +[[image:image-20220602103357-7.png]]
148 148  
137 +===== Select the COM port corresponding to USB TTL =====
149 149  
139 +[[image:image-20220602103844-8.png]]
150 150  
151 -= 3.  Order Info =
141 +===== Select the bin file to burn =====
152 152  
143 +[[image:image-20220602104144-9.png]]
153 153  
154 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
145 +[[image:image-20220602104251-10.png]]
155 155  
147 +[[image:image-20220602104402-11.png]]
156 156  
157 -(% style="color:blue" %)**XXX**(%%): The default frequency band
149 +===== Click to start the download =====
158 158  
159 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
160 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
161 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
162 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
163 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
164 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
165 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
166 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
167 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
151 +[[image:image-20220602104923-13.png]]
168 168  
153 +===== The following figure appears to prove that the burning is in progress =====
169 169  
155 +[[image:image-20220602104948-14.png]]
170 170  
171 -= 4.  FCC Statement =
157 +===== The following picture appears to prove that the burning is successful =====
172 172  
159 +[[image:image-20220602105251-15.png]]
173 173  
174 -(% style="color:red" %)**FCC Caution:**
161 += LA66 USB LoRaWAN Adapter =
175 175  
176 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
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.
177 177  
178 -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.
165 +Before use, please make sure that the computer has installed the CP2102 driver
179 179  
167 +== Pin Mapping & LED ==
180 180  
181 -(% style="color:red" %)**IMPORTANT NOTE: **
169 +== Example Send & Get Messages via LoRaWAN in PC ==
182 182  
183 -(% 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:
171 +Connect the LA66 LoRa Shield to the PC
184 184  
185 -—Reorient or relocate the receiving antenna.
173 +[[image:image-20220602171217-1.png||height="615" width="915"]]
186 186  
187 -—Increase the separation between the equipment and receiver.
175 +Open the serial port tool
188 188  
189 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
177 +[[image:image-20220602161617-8.png]]
190 190  
191 -—Consult the dealer or an experienced radio/TV technician for help.
179 +[[image:image-20220602161718-9.png||height="529" width="927"]]
192 192  
181 +Press the reset switch RST on the LA66 LoRa Shield.
193 193  
194 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
183 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
195 195  
196 -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.
185 +[[image:image-20220602161935-10.png]]
186 +
187 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
188 +
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 +
249 +2.Run the script and see the TTN
250 +
251 +[[image:image-20220602115852-3.png]]
252 +
253 +
254 +
255 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
256 +
257 +
258 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
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