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...	...	@@ -26,6 +26,7 @@
26	26	(% class="wikigeneratedid" id="H2.2.Configure" %)
27	27	(% style="color:blue" %)**Configure:**
28	28
	29	+
29	29	(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
30	30	|=**A's configuration**|=**B's configuration**
31	31	|AT+GROUPMOD=0|AT+GROUPMOD=0
...	...	@@ -38,7 +38,6 @@
38	38	|AT+DI2TODO2=2 |AT+DI2TODO2=2
39	39	|AT+DI2TORO2=2|AT+DI2TORO2=2
40	40
41		-
42	42	== **2.2  Point To Mult-Point ** ==
43	43
44	44
...	...	@@ -47,9 +47,7 @@
47	47
48	48	[[image:image-20220602111219-3.png]]
49	49
50		-(((
51	51	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.
52		-)))
53	53
54	54
55	55	== **2.3 AT command** ==
...	...	@@ -77,7 +77,7 @@
77	77
78	78	(% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
79	79
80		-(% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
	78	+(% style="color:#037691" %)**AT+BW **(%%)**:  **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
81	81
82	82	(% style="color:#037691" %)**AT+CR **(%%)**:        **Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1)
83	83
...	...	@@ -85,13 +85,11 @@
85	85
86	86	(% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
87	87
88		-(% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
	86	+(% style="color:#037691" %)**AT+SEND **(%%)**:  **Set Custom sent hex data
89	89
90	90	(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
91	91
92		-(((
93	93	(% style="color:#037691" %)**AT+GROUPID **(%%)**:      **Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678)
94		-)))
95	95
96	96	(% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
97	97
...	...	@@ -161,9 +161,7 @@
161	161
162	162	**AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
163	163
164		-(((
165	165	**AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
166		-)))
167	167
168	168	**AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
169	169
...	...	@@ -197,17 +197,13 @@
197	197
198	198	(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
199	199
200		-(((
201	201	(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered.
202		-)))
203	203
204	204	(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
205	205
206	206	(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
207	207
208		-(((
209	209	(% style="color:#037691" %)**The seventh byte**(%%)**:**  the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered.
210		-)))
211	211
212	212	(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
213	213