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15	15	== 1. AT command： ==
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17	17
18		-**(% style="color:blue" %)1) Lora parameter configuration:**
	18	+(% style="color:blue" %)**1) Lora parameter configuration:**
19	19
20	20	AT+FRE: Get or Set TX and RX frequency
21	21
...	...	@@ -38,7 +38,7 @@
38	38	AT+SYNCWORD: Get or Set sync word
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40	40
41		-**(% style="color:blue" %)2) General configuration:**
	41	+(% style="color:blue" %)**2) General configuration:**
42	42
43	43	ATZ: Trig a reset of the MCU
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...	...	@@ -63,27 +63,27 @@
63	63	== 2. Serial port information ==
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65	65
66		-**(% style="color:blue" %)1) Information initialized at reset：**
	66	+(% style="color:blue" %)**1) Information initialized at reset：**
67	67
68	68	[[image:image-20220926112125-1.png]]
69	69
70	70
71		-**(% style="color:blue" %)2) In retransmission, the Uplinkcounter does not accumulate. The following figure shows that the third count packet is retransmitted twice when the ACK packet is not received.**
	71	+(% style="color:blue" %)**2) In retransmission, the Uplinkcounter does not accumulate. The following figure shows that the third count packet is retransmitted twice when the ACK packet is not received.**
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73	73
74	74	[[image:image-20220926112125-2.png]]
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76	76
77		-**(% style="color:blue" %)3) In the figure below, the receiver sends an ACK to the sender after receiving the packet, and the sender stops retransmission after receiving the ACK.**
	77	+(% style="color:blue" %)**3) In the figure below, the receiver sends an ACK to the sender after receiving the packet, and the sender stops retransmission after receiving the ACK.**
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79	79
80		-**(% style="color:red" %)Receiver: (configured as AT+RXMOD=65535,2)**
	80	+(% style="color:red" %)**Receiver: (configured as AT+RXMOD=65535,2)**
81	81
82	82	[[image:image-20220926112125-3.png]]
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85	85
86		-**(% style="color:red" %)Sender:**
	86	+(% style="color:red" %)**Sender:**
87	87
88	88	[[image:image-20220926112125-4.png]]
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105	105
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107	107
108		-
109	109	= AT Command Set. =
110	110
111	111	== Set TX and RX Bandwidth ==