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...	...	@@ -62,9 +62,6 @@
62	62	* Firmware upgradable via UART interface
63	63	* Ultra-long RF range
64	64
65		-
66		-
67		-
68	68	== 1.3  Specification ==
69	69
70	70	* CPU: 32-bit 48 MHz
...	...	@@ -85,9 +85,6 @@
85	85	* LoRa Rx current: <9 mA
86	86	* I/O Voltage: 3.3v
87	87
88		-
89		-
90		-
91	91	== 1.4  AT Command ==
92	92
93	93
...	...	@@ -170,9 +170,6 @@
170	170	* Firmware upgradable via UART interface
171	171	* Ultra-long RF range
172	172
173		-
174		-
175		-
176	176	== 2.3  Specification ==
177	177
178	178	* CPU: 32-bit 48 MHz
...	...	@@ -193,73 +193,43 @@
193	193	* LoRa Rx current: <9 mA
194	194	* I/O Voltage: 3.3v
195	195
196		-
197		-
198		-
199	199	== 2.4  LED ==
200	200
201		-
202	202	~1. The LED lights up red when there is an upstream data packet
203	203	2. When the network is successfully connected, the green light will be on for 5 seconds
204	204	3. Purple light on when receiving downlink data packets
205	205
206	206
207		-
208	208	== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
209	209
	196	+Show connection diagram：
210	210
211		-**Show connection diagram：**
212		-
213		-
214	214	[[image:image-20220723170210-2.png||height="908" width="681"]]
215	215
	200	+1.open Arduino IDE
216	216
217		-
218		-**1.  open Arduino IDE**
219		-
220		-
221	221	[[image:image-20220723170545-4.png]]
222	222
	204	+2.Open project
223	223
224		-
225		-**2.  Open project**
226		-
227		-
228		-LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0>>https://www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0]]
229		-
230	230	[[image:image-20220723170750-5.png||height="533" width="930"]]
231	231
	208	+3.Click the button marked 1 in the figure to compile, and after the compilation is complete, click the button marked 2 in the figure to upload
232	232
233		-
234		-**3.  Click the button marked 1 in the figure to compile, and after the compilation is complete, click the button marked 2 in the figure to upload**
235		-
236		-
237	237	[[image:image-20220723171228-6.png]]
238	238
	212	+4.After the upload is successful, open the serial port monitoring and send the AT command
239	239
240		-
241		-**4.  After the upload is successful, open the serial port monitoring and send the AT command**
242		-
243		-
244	244	[[image:image-20220723172235-7.png||height="480" width="1027"]]
245	245
246		-
247		-
248	248	== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
249	249
	218	+1.Open project
250	250
251		-**1.  Open project**
252		-
253		-
254		-Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0>>https://www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0]]
255		-
256	256	[[image:image-20220723172502-8.png]]
257	257
	222	+2.Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
258	258
259		-
260		-2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
261		-
262		-
263	263	[[image:image-20220723172938-9.png||height="652" width="1050"]]
264	264
265	265