Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 27.1 >
edited by Herong Lu
on 2022/06/02 10:44
To version < 69.1 >
edited by Edwin Chen
on 2022/07/02 23:51
>
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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 +* Support LoRaWAN v1.0.4 protocol
23 +* Support peer-to-peer protocol
24 +* TCXO crystal to ensure RF performance on low temperature
25 +* SMD Antenna pad and i-pex antenna connector
26 +* Available in different frequency LoRaWAN frequency bands.
27 +* World-wide unique OTAA keys.
28 +* AT Command via UART-TTL interface
29 +* Firmware upgradable via UART interface
30 +* Ultra-long RF range
22 22  
23 -Power Consumption: < 4uA.
24 24  
25 -Frequency Range: 150 MHz ~~ 960 MHz
33 +== Specification ==
26 26  
27 -Maximum Power +22 dBm constant RF output
35 +* CPU: 32-bit 48 MHz
36 +* Flash: 256KB
37 +* RAM: 64KB
38 +* Input Power Range: 1.8v ~~ 3.7v
39 +* Power Consumption: < 4uA.
40 +* Frequency Range: 150 MHz ~~ 960 MHz
41 +* Maximum Power +22 dBm constant RF output
42 +* High sensitivity: -148 dBm
43 +* Temperature:
44 +** Storage: -55 ~~ +125℃
45 +** Operating: -40 ~~ +85℃
46 +* Humidity:
47 +** Storage: 5 ~~ 95% (Non-Condensing)
48 +** Operating: 10 ~~ 95% (Non-Condensing)
49 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
50 +* LoRa Rx current: <9 mA
51 +* I/O Voltage: 3.3v
28 28  
29 -High sensitivity: -148 dBm
53 +== AT Command ==
30 30  
31 -Temperature:
55 +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:
58 +== Dimension ==
37 37  
38 -* Storage: 5 ~~ 95% (Non-Condensing)
39 -* Operating: 10 ~~ 95% (Non-Condensing)
60 +[[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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73 73  * **US915**: LoRaWAN US915 band
74 74  * **IN865**: LoRaWAN IN865 band
75 75  * **CN470**: LoRaWAN CN470 band
86 +* **PP**: Peer to Peer LoRa Protocol
76 76  
77 77  = LA66 LoRaWAN Shield =
78 78  
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118 118  
119 119  === Upgrade steps ===
120 120  
132 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
121 121  
134 +[[image:image-20220602102824-5.png]]
135 +
136 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
137 +
138 +[[image:image-20220602104701-12.png]]
139 +
140 +==== Open the upgrade application software ====
141 +
142 +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/]]
143 +
144 +[[image:image-20220602103227-6.png]]
145 +
146 +[[image:image-20220602103357-7.png]]
147 +
148 +===== Select the COM port corresponding to USB TTL =====
149 +
150 +[[image:image-20220602103844-8.png]]
151 +
152 +===== Select the bin file to burn =====
153 +
154 +[[image:image-20220602104144-9.png]]
155 +
156 +[[image:image-20220602104251-10.png]]
157 +
158 +[[image:image-20220602104402-11.png]]
159 +
160 +===== Click to start the download =====
161 +
162 +[[image:image-20220602104923-13.png]]
163 +
164 +===== The following figure appears to prove that the burning is in progress =====
165 +
166 +[[image:image-20220602104948-14.png]]
167 +
168 +===== The following picture appears to prove that the burning is successful =====
169 +
170 +[[image:image-20220602105251-15.png]]
171 +
122 122  = LA66 USB LoRaWAN Adapter =
123 123  
124 124  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.
125 125  
176 +Before use, please make sure that the computer has installed the CP2102 driver
177 +
126 126  == Pin Mapping & LED ==
127 127  
128 128  == Example Send & Get Messages via LoRaWAN in PC ==
129 129  
182 +Connect the LA66 LoRa Shield to the PC
183 +
184 +[[image:image-20220602171217-1.png||height="615" width="915"]]
185 +
186 +Open the serial port tool
187 +
188 +[[image:image-20220602161617-8.png]]
189 +
190 +[[image:image-20220602161718-9.png||height="529" width="927"]]
191 +
192 +Press the reset switch RST on the LA66 LoRa Shield.
193 +
194 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
195 +
196 +[[image:image-20220602161935-10.png]]
197 +
198 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
199 +
200 +example: AT+SENDB=01,02,8,05820802581ea0a5
201 +
202 +[[image:image-20220602162157-11.png]]
203 +
204 +Check to see if TTN received the message
205 +
206 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
207 +
130 130  == Example Send & Get Messages via LoRaWAN in RPi ==
131 131  
132 -=== Install USB Driver ===
210 +Connect the LA66 LoRa Shield to the RPI
133 133  
212 +[[image:image-20220602171233-2.png||height="592" width="881"]]
213 +
214 +Log in to the RPI's terminal and connect to the serial port
215 +
216 +[[image:image-20220602153146-3.png]]
217 +
218 +Press the reset switch RST on the LA66 LoRa Shield.
219 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
220 +
221 +[[image:image-20220602154928-5.png]]
222 +
223 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
224 +
225 +example: AT+SENDB=01,02,8,05820802581ea0a5
226 +
227 +[[image:image-20220602160339-6.png]]
228 +
229 +Check to see if TTN received the message
230 +
231 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
232 +
134 134  === Install Minicom ===
135 135  
136 -=== Use AT Command to send an uplink message. ===
235 +Enter the following command in the RPI terminal
137 137  
138 -=== Send CPU/RAM usage to TTN via a script. ===
237 +apt update
139 139  
239 +[[image:image-20220602143155-1.png]]
140 140  
241 +apt install minicom
242 +
243 +[[image:image-20220602143744-2.png]]
244 +
245 +=== Send PC's CPU/RAM usage to TTN via script. ===
246 +
247 +==== Take python as an example： ====
248 +
249 +===== Preconditions: =====
250 +
251 +1.LA66 USB LoRaWAN Adapter works fine
252 +
253 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
254 +
255 +===== Steps for usage =====
256 +
257 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
258 +
259 +2.Run the script and see the TTN
260 +
261 +[[image:image-20220602115852-3.png]]
262 +
263 +
264 +
141 141  == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
142 142  
143 143  
144 144  == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
269 +
270 +
CP210x_Universal_Windows_Driver.zip
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