Last modified by Xiaoling on 2023/05/26 14:19
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From version < 41.1 >
edited by Herong Lu
on 2022/06/02 13:43
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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162 162  
163 163  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.
164 164  
163 +Before use, please make sure that the computer has installed the CP2102 driver
164 +
165 165  == Pin Mapping & LED ==
166 166  
167 167  == Example Send & Get Messages via LoRaWAN in PC ==
168 168  
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 +
169 169  == Example Send & Get Messages via LoRaWAN in RPi ==
170 170  
171 -=== Install USB Driver ===
197 +Connect the LA66 LoRa Shield to the RPI
172 172  
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 +
173 173  === Install Minicom ===
174 174  
175 -=== Use AT Command to send an uplink message. ===
222 +Enter the following command in the RPI terminal
176 176  
224 +apt update
225 +
226 +[[image:image-20220602143155-1.png]]
227 +
228 +apt install minicom
229 +
230 +[[image:image-20220602143744-2.png]]
231 +
177 177  === Send PC's CPU/RAM usage to TTN via script. ===
178 178  
179 179  ==== Take python as an example： ====
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180 180  
181 181  ===== Preconditions: =====
182 182  
183 -1.LA66 LoRa Shield works fine
238 +1.LA66 USB LoRaWAN Adapter works fine
184 184  
185 -2.LA66 LoRa Shield is registered with TTN
240 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
186 186  
187 187  ===== Steps for usage =====
188 188  
189 -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
244 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
190 190  
191 -[[image:image-20220602114148-1.png]]
192 -
193 193  2.Run the script and see the TTN
194 194  
195 195  [[image:image-20220602115852-3.png]]
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200 200  
201 201  
202 202  == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
256 +
257 +
CP210x_Universal_Windows_Driver.zip
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