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4	4
5	5	= **1. Overview** =
6	6
	7	+(((
7	7	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	+)))
8	8
	11	+(((
9	9	[[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
	13	+)))
10	10
11	11	== ==
12	12
...	...	@@ -20,27 +20,23 @@
20	20
21	21	== **2.2. Configure** ==
22	22
23		-A's configuration:AT+GROUPMOD=0            B's configuration:AT+GROUPMOD=0
	27	+(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
	28	+|=**A's configuration**|=**B's configuration**
	29	+|AT+GROUPMOD=0|AT+GROUPMOD=0
	30	+|AT+TXCHS=868700000|AT+TXCHS=869000000
	31	+|AT+RXCHS=869000000|AT+RXCHS=868700000
	32	+|AT+TRIG1=2,50|AT+TRIG1=2,50
	33	+|AT+TRIG2=2,50|AT+TRIG2=2,50
	34	+|AT+DI1TODO1=2|AT+DI1TODO1=2
	35	+|AT+DI1TORO1=2|AT+DI1TORO1=2
	36	+|AT+DI2TODO2=2 |AT+DI2TODO2=2
	37	+|AT+DI2TORO2=2|AT+DI2TORO2=2
24	24
25		-AT+TXCHS=868700000                        AT+TXCHS=869000000
26	26
27		-AT+RXCHS=869000000                        AT+RXCHS=868700000
28	28
29		- AT+TRIG1=2,50                             AT+TRIG1=2,50
30		-
31		- AT+TRIG2=2,50                           AT+TRIG2=2,50
32		-
33		- AT+DI1TODO1=2                            AT+DI1TODO1=2
34		-
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	42	== **2.3.  Serial port display** ==
43	43
	43	+
44	44	[[image:image-20220602111219-2.png]]
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46	46