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...	...	@@ -16,45 +16,50 @@
16	16
17	17	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
18	18
	19	+
19	19	== Features ==
20	20
	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
21	21
	32	+
22	22	== Specification ==
23	23
24		-[[image:image-20220517072526-1.png]]
	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
25	25
26		-Input Power Range: 1.8v ~~ 3.7v
	53	+== AT Command ==
27	27
28		-Power Consumption: < 4uA.
	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.
29	29
30		-Frequency Range: 150 MHz ~~ 960 MHz
31	31
32		-Maximum Power +22 dBm constant RF output
	58	+== Dimension ==
33	33
34		-High sensitivity: -148 dBm
	60	+[[image:image-20220517072526-1.png]]
35	35
36		-Temperature:
37	37
38		-* Storage: -55 ~~ +125℃
39		-* Operating: -40 ~~ +85℃
40		-
41		-Humidity:
42		-
43		-* Storage: 5 ~~ 95% (Non-Condensing)
44		-* Operating: 10 ~~ 95% (Non-Condensing)
45		-
46		-LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
47		-
48		-LoRa Rx current: <9 mA
49		-
50		-I/O Voltage: 3.3v
51		-
52		-
53		-== AT Command ==
54		-
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.
56		-
57		-
58	58	== Pin Mapping ==
59	59
60	60	[[image:image-20220523101537-1.png]]
...	...	@@ -78,11 +78,52 @@
78	78	* **US915**: LoRaWAN US915 band
79	79	* **IN865**: LoRaWAN IN865 band
80	80	* **CN470**: LoRaWAN CN470 band
	86	+* **PP**: Peer to Peer LoRa Protocol
81	81
	88	+
	89	+
82	82	= LA66 LoRaWAN Shield =
83	83
84		-LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
	92	+== Overview ==
85	85
	94	+LA66 LoRaWAN Shield is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to  Arduino projects.
	95	+
	96	+
	97	+== Features ==
	98	+
	99	+* Arduino Shield base on LA66 LoRaWAN module
	100	+* Support LoRaWAN v1.0.4 protocol
	101	+* Support peer-to-peer protocol
	102	+* TCXO crystal to ensure RF performance on low temperature
	103	+* SMA connector
	104	+* Available in different frequency LoRaWAN frequency bands.
	105	+* World-wide unique OTAA keys.
	106	+* AT Command via UART-TTL interface
	107	+* Firmware upgradable via UART interface
	108	+* Ultra-long RF range
	109	+
	110	+
	111	+== Specification ==
	112	+
	113	+* CPU: 32-bit 48 MHz
	114	+* Flash: 256KB
	115	+* RAM: 64KB
	116	+* Input Power Range: 1.8v ~~ 3.7v
	117	+* Power Consumption: < 4uA.
	118	+* Frequency Range: 150 MHz ~~ 960 MHz
	119	+* Maximum Power +22 dBm constant RF output
	120	+* High sensitivity: -148 dBm
	121	+* Temperature:
	122	+** Storage: -55 ~~ +125℃
	123	+** Operating: -40 ~~ +85℃
	124	+* Humidity:
	125	+** Storage: 5 ~~ 95% (Non-Condensing)
	126	+** Operating: 10 ~~ 95% (Non-Condensing)
	127	+* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	128	+* LoRa Rx current: <9 mA
	129	+* I/O Voltage: 3.3v
	130	+
	131	+
86	86	== Pin Mapping & LED ==
87	87
88	88	== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==