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From version < 14.1 >
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on 2022/05/31 10:05
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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.
... ... @@ -88,27 +88,169 @@
88 88  
89 89  == Upgrade Firmware of LA66 LoRaWAN Shield ==
90 90  
102 +=== what needs to be used ===
91 91  
104 +1.LA66 LoRaWAN Shield that needs to be upgraded
92 92  
106 +2.Arduino
107 +
108 +3.USB TO TTL
109 +
110 +[[image:image-20220602100052-2.png]]
111 +
112 +=== Wiring Schematic ===
113 +
114 +[[image:image-20220602101311-3.png]]
115 +
116 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
117 +
118 +GND  >>>>>>>>>>>>GND
119 +
120 +TXD  >>>>>>>>>>>>TXD
121 +
122 +RXD  >>>>>>>>>>>>RXD
123 +
124 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
125 +
126 +Connect to the PC after connecting the wires
127 +
128 +[[image:image-20220602102240-4.png]]
129 +
130 +=== Upgrade steps ===
131 +
132 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
133 +
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 +
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  
176 +Before use, please make sure that the computer has installed the CP2102 driver
177 +
97 97  == Pin Mapping & LED ==
98 98  
99 99  == Example Send & Get Messages via LoRaWAN in PC ==
100 100  
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 +
101 101  == Example Send & Get Messages via LoRaWAN in RPi ==
102 102  
103 -=== Install USB Driver ===
210 +Connect the LA66 LoRa Shield to the RPI
104 104  
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 +
105 105  === Install Minicom ===
106 106  
107 -=== Use AT Command to send an uplink message. ===
235 +Enter the following command in the RPI terminal
108 108  
109 -=== Send CPU/RAM/Flash usage to TTN via a script. ===
237 +apt update
110 110  
239 +[[image:image-20220602143155-1.png]]
111 111  
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 +
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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