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...	...	@@ -16,11 +16,25 @@
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
	35	+* CPU: 32-bit 48 MHz
	36	+* Flash: 256KB
	37	+* RAM: 64KB
24	24	* Input Power Range: 1.8v ~~ 3.7v
25	25	* Power Consumption: < 4uA.
26	26	* Frequency Range: 150 MHz ~~ 960 MHz
...	...	@@ -36,7 +36,6 @@
36	36	* LoRa Rx current: <9 mA
37	37	* I/O Voltage: 3.3v
38	38
39		-
40	40	== AT Command ==
41	41
42	42	AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
...	...	@@ -70,11 +70,52 @@
70	70	* **US915**: LoRaWAN US915 band
71	71	* **IN865**: LoRaWAN IN865 band
72	72	* **CN470**: LoRaWAN CN470 band
	86	+* **PP**: Peer to Peer LoRa Protocol
73	73
	88	+
	89	+
74	74	= LA66 LoRaWAN Shield =
75	75
76		-LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
	92	+== Overview ==
77	77
	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	+
78	78	== Pin Mapping & LED ==
79	79
80	80	== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==