Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 5.1 >
edited by Edwin Chen
on 2022/05/17 07:28
To version < 52.1 >
edited by Herong Lu
on 2022/06/02 16:07
>
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1 -XWiki.Edwin
1 +XWiki.Lu
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2 2  {{toc/}}
3 3  {{/box}}
4 4  
5 -= What is LA66 LoRaWAN Module =
5 += LA66 LoRaWAN Module =
6 6  
7 +== What is LA66 LoRaWAN Module ==
8 +
7 7  **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.
8 8  
9 9  **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.
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12 12  
13 13  
14 14  
15 -= Specification =
17 +== Specification ==
16 16  
17 17  [[image:image-20220517072526-1.png]]
18 18  
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43 43  I/O Voltage: 3.3v
44 44  
45 45  
46 -= AT Command =
48 +== AT Command ==
47 47  
48 48  AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
49 49  
50 50  
51 -= Pin Mapping =
53 +== Pin Mapping ==
52 52  
55 +[[image:image-20220523101537-1.png]]
53 53  
54 -= Land Pattern =
57 +== Land Pattern ==
55 55  
56 56  [[image:image-20220517072821-2.png]]
57 57  
58 58  
59 -= Part Number =
62 +== Part Number ==
60 60  
61 61  Part Number: **LA66-XXX**
62 62  
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70 70  * **US915**: LoRaWAN US915 band
71 71  * **IN865**: LoRaWAN IN865 band
72 72  * **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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