Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 16.1 >
edited by Herong Lu
on 2022/06/02 09:58
To version < 67.1 >
edited by Edwin Chen
on 2022/07/02 23:33
>
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1 -XWiki.Lu
1 +XWiki.Edwin
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6 6  
7 7  == What is LA66 LoRaWAN Module ==
8 8  
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.
9 +(% 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.
10 10  
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.
11 +(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.4 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.
12 12  
13 -**Each LA66 **module includes a world unique OTAA key for LoRaWAN registration.
13 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
14 14  
15 +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.
15 15  
17 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
16 16  
17 -== Specification ==
18 18  
19 -[[image:image-20220517072526-1.png]]
20 +== Features ==
20 20  
21 -Input Power Range: 1.8v ~~ 3.7v
22 22  
23 -Power Consumption: < 4uA.
24 24  
25 -Frequency Range: 150 MHz ~~ 960 MHz
24 +== Specification ==
26 26  
27 -Maximum Power +22 dBm constant RF output
26 +* Input Power Range: 1.8v ~~ 3.7v
27 +* Power Consumption: < 4uA.
28 +* Frequency Range: 150 MHz ~~ 960 MHz
29 +* Maximum Power +22 dBm constant RF output
30 +* High sensitivity: -148 dBm
31 +* Temperature:
32 +** Storage: -55 ~~ +125℃
33 +** Operating: -40 ~~ +85℃
34 +* Humidity:
35 +** Storage: 5 ~~ 95% (Non-Condensing)
36 +** Operating: 10 ~~ 95% (Non-Condensing)
37 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
38 +* LoRa Rx current: <9 mA
39 +* I/O Voltage: 3.3v
28 28  
29 -High sensitivity: -148 dBm
41 +== AT Command ==
30 30  
31 -Temperature:
43 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
32 32  
33 -* Storage: -55 ~~ +125℃
34 -* Operating: -40 ~~ +85℃
35 35  
36 -Humidity:
46 +== Dimension ==
37 37  
38 -* Storage: 5 ~~ 95% (Non-Condensing)
39 -* Operating: 10 ~~ 95% (Non-Condensing)
48 +[[image:image-20220517072526-1.png]]
40 40  
41 -LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
42 42  
43 -LoRa Rx current: <9 mA
44 -
45 -I/O Voltage: 3.3v
46 -
47 -
48 -== AT Command ==
49 -
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 -
52 -
53 53  == Pin Mapping ==
54 54  
55 55  [[image:image-20220523101537-1.png]]
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88 88  
89 89  == Upgrade Firmware of LA66 LoRaWAN Shield ==
90 90  
89 +=== what needs to be used ===
91 91  
91 +1.LA66 LoRaWAN Shield that needs to be upgraded
92 92  
93 +2.Arduino
94 +
95 +3.USB TO TTL
96 +
97 +[[image:image-20220602100052-2.png]]
98 +
99 +=== Wiring Schematic ===
100 +
101 +[[image:image-20220602101311-3.png]]
102 +
103 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
104 +
105 +GND  >>>>>>>>>>>>GND
106 +
107 +TXD  >>>>>>>>>>>>TXD
108 +
109 +RXD  >>>>>>>>>>>>RXD
110 +
111 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
112 +
113 +Connect to the PC after connecting the wires
114 +
115 +[[image:image-20220602102240-4.png]]
116 +
117 +=== Upgrade steps ===
118 +
119 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
120 +
121 +[[image:image-20220602102824-5.png]]
122 +
123 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
124 +
125 +[[image:image-20220602104701-12.png]]
126 +
127 +==== Open the upgrade application software ====
128 +
129 +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/]]
130 +
131 +[[image:image-20220602103227-6.png]]
132 +
133 +[[image:image-20220602103357-7.png]]
134 +
135 +===== Select the COM port corresponding to USB TTL =====
136 +
137 +[[image:image-20220602103844-8.png]]
138 +
139 +===== Select the bin file to burn =====
140 +
141 +[[image:image-20220602104144-9.png]]
142 +
143 +[[image:image-20220602104251-10.png]]
144 +
145 +[[image:image-20220602104402-11.png]]
146 +
147 +===== Click to start the download =====
148 +
149 +[[image:image-20220602104923-13.png]]
150 +
151 +===== The following figure appears to prove that the burning is in progress =====
152 +
153 +[[image:image-20220602104948-14.png]]
154 +
155 +===== The following picture appears to prove that the burning is successful =====
156 +
157 +[[image:image-20220602105251-15.png]]
158 +
93 93  = LA66 USB LoRaWAN Adapter =
94 94  
95 95  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.
96 96  
163 +Before use, please make sure that the computer has installed the CP2102 driver
164 +
97 97  == Pin Mapping & LED ==
98 98  
99 99  == Example Send & Get Messages via LoRaWAN in PC ==
100 100  
169 +Connect the LA66 LoRa Shield to the PC
170 +
171 +[[image:image-20220602171217-1.png||height="615" width="915"]]
172 +
173 +Open the serial port tool
174 +
175 +[[image:image-20220602161617-8.png]]
176 +
177 +[[image:image-20220602161718-9.png||height="529" width="927"]]
178 +
179 +Press the reset switch RST on the LA66 LoRa Shield.
180 +
181 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
182 +
183 +[[image:image-20220602161935-10.png]]
184 +
185 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
186 +
187 +example: AT+SENDB=01,02,8,05820802581ea0a5
188 +
189 +[[image:image-20220602162157-11.png]]
190 +
191 +Check to see if TTN received the message
192 +
193 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
194 +
101 101  == Example Send & Get Messages via LoRaWAN in RPi ==
102 102  
103 -=== Install USB Driver ===
197 +Connect the LA66 LoRa Shield to the RPI
104 104  
199 +[[image:image-20220602171233-2.png||height="592" width="881"]]
200 +
201 +Log in to the RPI's terminal and connect to the serial port
202 +
203 +[[image:image-20220602153146-3.png]]
204 +
205 +Press the reset switch RST on the LA66 LoRa Shield.
206 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
207 +
208 +[[image:image-20220602154928-5.png]]
209 +
210 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
211 +
212 +example: AT+SENDB=01,02,8,05820802581ea0a5
213 +
214 +[[image:image-20220602160339-6.png]]
215 +
216 +Check to see if TTN received the message
217 +
218 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
219 +
105 105  === Install Minicom ===
106 106  
107 -=== Use AT Command to send an uplink message. ===
222 +Enter the following command in the RPI terminal
108 108  
109 -=== Send CPU/RAM usage to TTN via a script. ===
224 +apt update
110 110  
226 +[[image:image-20220602143155-1.png]]
111 111  
228 +apt install minicom
229 +
230 +[[image:image-20220602143744-2.png]]
231 +
232 +=== Send PC's CPU/RAM usage to TTN via script. ===
233 +
234 +==== Take python as an example： ====
235 +
236 +===== Preconditions: =====
237 +
238 +1.LA66 USB LoRaWAN Adapter works fine
239 +
240 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
241 +
242 +===== Steps for usage =====
243 +
244 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
245 +
246 +2.Run the script and see the TTN
247 +
248 +[[image:image-20220602115852-3.png]]
249 +
250 +
251 +
112 112  == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
113 113  
114 114  
CP210x_Universal_Windows_Driver.zip
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