Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 45.1 >
edited by Herong Lu
on 2022/06/02 14:37
To version < 68.1 >
edited by Edwin Chen
on 2022/07/02 23:42
>
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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.
22 22  
23 -Power Consumption: < 4uA.
24 24  
25 -Frequency Range: 150 MHz ~~ 960 MHz
26 26  
27 -Maximum Power +22 dBm constant RF output
28 28  
29 -High sensitivity: -148 dBm
32 +== Specification ==
30 30  
31 -Temperature:
34 +* CPU: 32-bit 48 MHz
35 +* Flash: 256KB
36 +* RAM: 64KB
37 +* Input Power Range: 1.8v ~~ 3.7v
38 +* Power Consumption: < 4uA.
39 +* Frequency Range: 150 MHz ~~ 960 MHz
40 +* Maximum Power +22 dBm constant RF output
41 +* High sensitivity: -148 dBm
42 +* Temperature:
43 +** Storage: -55 ~~ +125℃
44 +** Operating: -40 ~~ +85℃
45 +* Humidity:
46 +** Storage: 5 ~~ 95% (Non-Condensing)
47 +** Operating: 10 ~~ 95% (Non-Condensing)
48 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
49 +* LoRa Rx current: <9 mA
50 +* I/O Voltage: 3.3v
32 32  
33 -* Storage: -55 ~~ +125℃
34 -* Operating: -40 ~~ +85℃
52 +== AT Command ==
35 35  
36 -Humidity:
54 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
37 37  
38 -* Storage: 5 ~~ 95% (Non-Condensing)
39 -* Operating: 10 ~~ 95% (Non-Condensing)
40 40  
41 -LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
57 +== Dimension ==
42 42  
43 -LoRa Rx current: <9 mA
59 +[[image:image-20220517072526-1.png]]
44 44  
45 -I/O Voltage: 3.3v
46 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
85 +* **PP**: Peer to Peer LoRa Protocol
76 76  
87 +
77 77  = LA66 LoRaWAN Shield =
78 78  
79 79  LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
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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  
176 +Before use, please make sure that the computer has installed the CP2102 driver
177 +
165 165  == Pin Mapping & LED ==
166 166  
167 167  == Example Send & Get Messages via LoRaWAN in PC ==
168 168  
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 +
169 169  == Example Send & Get Messages via LoRaWAN in RPi ==
170 170  
171 -=== Install USB Driver ===
210 +Connect the LA66 LoRa Shield to the RPI
172 172  
173 -Download Link:[[click here>>attach:CP210x_Universal_Windows_Driver.zip]]
212 +[[image:image-20220602171233-2.png||height="592" width="881"]]
174 174  
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 +
175 175  === Install Minicom ===
176 176  
177 -=== Use AT Command to send an uplink message. ===
235 +Enter the following command in the RPI terminal
178 178  
237 +apt update
238 +
239 +[[image:image-20220602143155-1.png]]
240 +
241 +apt install minicom
242 +
243 +[[image:image-20220602143744-2.png]]
244 +
179 179  === Send PC's CPU/RAM usage to TTN via script. ===
180 180  
181 181  ==== Take python as an example： ====
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182 182  
183 183  ===== Preconditions: =====
184 184  
185 -1.LA66 LoRa Shield works fine
251 +1.LA66 USB LoRaWAN Adapter works fine
186 186  
187 -2.LA66 LoRa Shield is registered with TTN
253 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
188 188  
189 189  ===== Steps for usage =====
190 190  
191 -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
257 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
192 192  
193 -[[image:image-20220602114148-1.png]]
194 -
195 195  2.Run the script and see the TTN
196 196  
197 197  [[image:image-20220602115852-3.png]]
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202 202  
203 203  
204 204  == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
269 +
270 +
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