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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
...	...	@@ -46,9 +46,7 @@
46	46
47	47	[[image:image-20220602111219-3.png]]
48	48
49		-(((
50	50	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.
51		-)))
52	52
53	53
54	54	== **2.3 AT command** ==
...	...	@@ -76,7 +76,7 @@
76	76
77	77	(% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
78	78
79		-(% 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)
80	80
81	81	(% 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)
82	82
...	...	@@ -84,13 +84,11 @@
84	84
85	85	(% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
86	86
87		-(% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
	86	+(% style="color:#037691" %)**AT+SEND **(%%)**:  **Set Custom sent hex data
88	88
89	89	(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
90	90
91		-(((
92	92	(% 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)
93		-)))
94	94
95	95	(% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
96	96
...	...	@@ -160,9 +160,7 @@
160	160
161	161	**AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
162	162
163		-(((
164	164	**AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
165		-)))
166	166
167	167	**AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
168	168
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196	196
197	197	(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
198	198
199		-(((
200	200	(% 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.
201		-)))
202	202
203	203	(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
204	204
205	205	(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
206	206
207		-(((
208	208	(% 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.
209		-)))
210	210
211	211	(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
212	212