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4	4
5	5	= **1. Overview** =
6	6
7		-(((
8	8	Shipped LT-22222-L is base on LoRaWAN protocol. We also develop a open source Point to Point LoRa protocol for LT-22222-L. The source code and hex file can be found at:
9		-)))
10	10
11		-(((
12	12	[[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
13		-)))
14	14
15	15	== ==
16	16
...	...	@@ -19,30 +19,32 @@
19	19
20	20	== **2.1  Overview** ==
21	21
22		-
23	23	[[image:image-20220602111219-1.png]]
24	24
25	25
26	26	== **2.2. Configure** ==
27	27
	23	+A's configuration:AT+GROUPMOD=0            B's configuration:AT+GROUPMOD=0
28	28
29		-(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
30		-|=**A's configuration**|=**B's configuration**
31		-|AT+GROUPMOD=0|AT+GROUPMOD=0
32		-|AT+TXCHS=868700000|AT+TXCHS=869000000
33		-|AT+RXCHS=869000000|AT+RXCHS=868700000
34		-|AT+TRIG1=2,50|AT+TRIG1=2,50
35		-|AT+TRIG2=2,50|AT+TRIG2=2,50
36		-|AT+DI1TODO1=2|AT+DI1TODO1=2
37		-|AT+DI1TORO1=2|AT+DI1TORO1=2
38		-|AT+DI2TODO2=2 |AT+DI2TODO2=2
39		-|AT+DI2TORO2=2|AT+DI2TORO2=2
	25	+AT+TXCHS=868700000                        AT+TXCHS=869000000
40	40
	27	+AT+RXCHS=869000000                        AT+RXCHS=868700000
41	41
	29	+ AT+TRIG1=2,50                             AT+TRIG1=2,50
42	42
43		-== **2.3.  Serial port display** ==
	31	+ AT+TRIG2=2,50                           AT+TRIG2=2,50
44	44
	33	+ AT+DI1TODO1=2                            AT+DI1TODO1=2
45	45
	35	+AT+DI1TORO1=2                            AT+DI1TORO1=2
	36	+
	37	+ AT+DI2TODO2=2 AT+DI2TODO2=2
	38	+
	39	+AT+DI2TORO2=2                          AT+DI2TORO2=2
	40	+
	41	+
	42	+== **2.3.  Serial port display** ==
	43	+
46	46	[[image:image-20220602111219-2.png]]
47	47
48	48