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...	...	@@ -2,7 +2,7 @@
2	2	{{toc/}}
3	3	{{/box}}
4	4
5		-= Overview =
	5	+= **1. Overview** =
6	6
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:
8	8
...	...	@@ -10,6 +10,42 @@
10	10
11	11	== ==
12	12
13		-= Features for this firmware: =
	13	+= **2. Features for this firmware** =
14	14
	15	+
	16	+== **2.1  Overview** ==
	17	+
	18	+[[image:image-20220602111219-1.png]]
	19	+
	20	+
	21	+== **2.2. Configure** ==
	22	+
	23	+A's configuration:AT+GROUPMOD=0            B's configuration:AT+GROUPMOD=0
	24	+
	25	+AT+TXCHS=868700000                        AT+TXCHS=869000000
	26	+
	27	+AT+RXCHS=869000000                        AT+RXCHS=868700000
	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	+== **2.3.  Serial port display** ==
	43	+
	44	+[[image:image-20220602111219-2.png]]
	45	+
	46	+
	47	+[[image:image-20220602111219-3.png]]
	48	+
	49	+If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
	50	+
15	15