Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 56.1 >
edited by Herong Lu
on 2022/06/02 16:21
To version < 5.1 >
edited by Edwin Chen
on 2022/05/17 07:28
>
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1 -XWiki.Lu
1 +XWiki.Edwin
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2 2  {{toc/}}
3 3  {{/box}}
4 4  
5 -= LA66 LoRaWAN Module =
5 += What is LA66 LoRaWAN Module =
6 6  
7 -== What is LA66 LoRaWAN Module ==
8 -
9 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.
10 10  
11 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.
... ... @@ -14,7 +14,7 @@
14 14  
15 15  
16 16  
17 -== Specification ==
15 += Specification =
18 18  
19 19  [[image:image-20220517072526-1.png]]
20 20  
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45 45  I/O Voltage: 3.3v
46 46  
47 47  
48 -== AT Command ==
46 += AT Command =
49 49  
50 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.
51 51  
52 52  
53 -== Pin Mapping ==
51 += Pin Mapping =
54 54  
55 -[[image:image-20220523101537-1.png]]
56 56  
57 -== Land Pattern ==
54 += Land Pattern =
58 58  
59 59  [[image:image-20220517072821-2.png]]
60 60  
61 61  
62 -== Part Number ==
59 += Part Number =
63 63  
64 64  Part Number: **LA66-XXX**
65 65  
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73 73  * **US915**: LoRaWAN US915 band
74 74  * **IN865**: LoRaWAN IN865 band
75 75  * **CN470**: LoRaWAN CN470 band
76 -
77 -= LA66 LoRaWAN Shield =
78 -
79 -LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
80 -
81 -== Pin Mapping & LED ==
82 -
83 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
84 -
85 -== Example: Join TTN network and send an uplink message, get downlink message. ==
86 -
87 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
88 -
89 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
90 -
91 -=== what needs to be used ===
92 -
93 -1.LA66 LoRaWAN Shield that needs to be upgraded
94 -
95 -2.Arduino
96 -
97 -3.USB TO TTL
98 -
99 -[[image:image-20220602100052-2.png]]
100 -
101 -=== Wiring Schematic ===
102 -
103 -[[image:image-20220602101311-3.png]]
104 -
105 -LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
106 -
107 -GND  >>>>>>>>>>>>GND
108 -
109 -TXD  >>>>>>>>>>>>TXD
110 -
111 -RXD  >>>>>>>>>>>>RXD
112 -
113 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
114 -
115 -Connect to the PC after connecting the wires
116 -
117 -[[image:image-20220602102240-4.png]]
118 -
119 -=== Upgrade steps ===
120 -
121 -==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
122 -
123 -[[image:image-20220602102824-5.png]]
124 -
125 -==== Press the RST switch on the LA66 LoRaWAN Shield once ====
126 -
127 -[[image:image-20220602104701-12.png]]
128 -
129 -==== Open the upgrade application software ====
130 -
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/]]
132 -
133 -[[image:image-20220602103227-6.png]]
134 -
135 -[[image:image-20220602103357-7.png]]
136 -
137 -===== Select the COM port corresponding to USB TTL =====
138 -
139 -[[image:image-20220602103844-8.png]]
140 -
141 -===== Select the bin file to burn =====
142 -
143 -[[image:image-20220602104144-9.png]]
144 -
145 -[[image:image-20220602104251-10.png]]
146 -
147 -[[image:image-20220602104402-11.png]]
148 -
149 -===== Click to start the download =====
150 -
151 -[[image:image-20220602104923-13.png]]
152 -
153 -===== The following figure appears to prove that the burning is in progress =====
154 -
155 -[[image:image-20220602104948-14.png]]
156 -
157 -===== The following picture appears to prove that the burning is successful =====
158 -
159 -[[image:image-20220602105251-15.png]]
160 -
161 -= LA66 USB LoRaWAN Adapter =
162 -
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.
164 -
165 -Before use, please make sure that the computer has installed the CP2102 driver
166 -
167 -== Pin Mapping & LED ==
168 -
169 -== Example Send & Get Messages via LoRaWAN in PC ==
170 -
171 -== Example Send & Get Messages via LoRaWAN in RPi ==
172 -
173 -Connect the LA66 LoRa Shield to the RPI
174 -
175 -[[image:image-20220602153333-4.png]]
176 -
177 -Log in to the RPI's terminal and connect to the serial port
178 -
179 -[[image:image-20220602153146-3.png]]
180 -
181 -Press the reset switch RST on the LA66 LoRa Shield.
182 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
183 -
184 -[[image:image-20220602154928-5.png]]
185 -
186 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
187 -
188 -example: AT+SENDB=01,02,8,05820802581ea0a5
189 -
190 -[[image:image-20220602160339-6.png]]
191 -
192 -Check to see if TTN received the message
193 -
194 -[[image:image-20220602160627-7.png||height="468" width="1013"]]
195 -
196 -=== Install Minicom ===
197 -
198 -Enter the following command in the RPI terminal
199 -
200 -apt update
201 -
202 -[[image:image-20220602143155-1.png]]
203 -
204 -apt install minicom
205 -
206 -[[image:image-20220602143744-2.png]]
207 -
208 -=== Use AT Command to send an uplink message. ===
209 -
210 -=== Send PC's CPU/RAM usage to TTN via script. ===
211 -
212 -==== Take python as an example： ====
213 -
214 -===== Preconditions: =====
215 -
216 -1.LA66 LoRa Shield works fine
217 -
218 -2.LA66 LoRa Shield is registered with TTN
219 -
220 -===== Steps for usage =====
221 -
222 -1.After connecting the line, connect it to the PC, turn SW1 to FLASH, and press the RST switch. As shown in the figure below
223 -
224 -[[image:image-20220602114148-1.png]]
225 -
226 -2.Run the script and see the TTN
227 -
228 -[[image:image-20220602115852-3.png]]
229 -
230 -
231 -
232 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
233 -
234 -
235 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
CP210x_Universal_Windows_Driver.zip
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