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54	54	== **2.3 AT command** ==
55	55
56	56
	57	+(((
57	57	(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
	59	+)))
58	58
	61	+(((
59	59	(% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
	63	+)))
60	60
	65	+(((
61	61	(% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Counter Uplink
	67	+)))
62	62
	69	+(((
63	63	(% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
	71	+)))
64	64
	73	+(((
65	65	(% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
	75	+)))
66	66
	77	+(((
67	67	(% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
	79	+)))
68	68
	81	+(((
69	69	(% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
	83	+)))
70	70
	85	+(((
71	71	(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
	87	+)))
72	72
	89	+(((
73	73	(% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
	91	+)))
74	74
	93	+(((
75	75	(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
	95	+)))
76	76
	97	+(((
77	77	(% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
	99	+)))
78	78
	101	+(((
79	79	(% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
	103	+)))
80	80
	105	+(((
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)
	107	+)))
82	82
	109	+(((
83	83	(% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
	111	+)))
84	84
	113	+(((
85	85	(% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
	115	+)))
86	86
	117	+(((
87	87	(% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
	119	+)))
88	88
	121	+(((
89	89	(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
	123	+)))
90	90
91	91	(((
	126	+(((
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	93	)))
	129	+)))
94	94
	131	+(((
95	95	(% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
	133	+)))
96	96
	135	+(((
97	97	(% style="color:#037691" %)**AT+TRIG2 **(%%)**:            **Set or Get the DI2 pin interrupt trigger mode (default 0,0)
	137	+)))
98	98
	139	+(((
99	99	(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**:    **Set or get the mode in which DI1 maps to DO1 (default 0)
	141	+)))
100	100
	143	+(((
101	101	(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**:    **Set or get the mode in which DI1 maps to RO1(default 0)
	145	+)))
102	102
	147	+(((
103	103	(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:**  Set or get the mode in which DI2 maps to DO2(default 0)
	149	+)))
104	104
	151	+(((
105	105	(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**:    **Set or get the mode in which DI2 maps to RO2(default 0)
	153	+)))
106	106
	155	+(((
	156	+
	157	+)))
107	107
	159	+(((
	160	+
	161	+)))
108	108
	163	+(((
109	109	(% style="color:#4f81bd" %)**Example 1:**
	165	+)))
110	110
	167	+(((
111	111	**AT+SEND=01020304 **will send a payload of 01020304
	169	+)))
112	112
	171	+(((
	172	+
	173	+)))
113	113
	175	+(((
114	114	(% style="color:#4f81bd" %)**Example 2: **
	177	+)))
115	115
	179	+(((
116	116	**AT+TRIGx=a    **Trigger directly without triggering time
	181	+)))
117	117
	183	+(((
118	118	**AT+TRIGx=a,b**
	185	+)))
119	119
	187	+(((
120	120	a=0: falling edge;
	189	+)))
121	121
	191	+(((
122	122	a=1: rising edge;
	193	+)))
123	123
	195	+(((
124	124	a=2: falling edge or rising edge;
	197	+)))
125	125
	199	+(((
126	126	b:  triggering time in milliseconds.
	201	+)))
127	127
	203	+(((
128	128	AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
	205	+)))
129	129
	207	+(((
	208	+
	209	+)))
130	130
	211	+(((
131	131	(% style="color:#4f81bd" %)**Example 3: **
	213	+)))
132	132
	215	+(((
133	133	**AT+DI1TODO1= maps value**
	217	+)))
134	134
	219	+(((
135	135	**AT+DI1TORO1= maps value**
	221	+)))
136	136
	223	+(((
137	137	**AT+DI2TODO2= maps value**
	225	+)))
138	138
	227	+(((
139	139	**AT+DI2TORO2= maps value**
	229	+)))
140	140
	231	+(((
	232	+
	233	+)))
141	141
142	142	(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
143		-|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx
144		-|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action
145		-|(% style="width:102px" %)1|(% style="width:331px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:268px" %)(((
	236	+|=(% style="width: 102px;" %)(((
	237	+Maps value
	238	+)))|=(% style="width: 331px;" %)(((
	239	+DIx to DOx
	240	+)))|=(% style="width: 268px;" %)(((
	241	+DIx to ROx
	242	+)))
	243	+|(% style="width:102px" %)(((
	244	+0
	245	+)))|(% style="width:331px" %)(((
	246	+No Action
	247	+)))|(% style="width:268px" %)(((
	248	+No Action
	249	+)))
	250	+|(% style="width:102px" %)(((
	251	+1
	252	+)))|(% style="width:331px" %)(((
	253	+If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level
	254	+)))|(% style="width:268px" %)(((
	255	+(((
146	146	If DIx is high, control ROx to close,
	257	+)))
147	147
	259	+(((
148	148	if DIx is low, control ROx to open
149	149	)))
150		-|(% style="width:102px" %)2|(% style="width:331px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:268px" %)(((
	262	+)))
	263	+|(% style="width:102px" %)(((
	264	+2
	265	+)))|(% style="width:331px" %)(((
	266	+If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level
	267	+)))|(% style="width:268px" %)(((
	268	+(((
151	151	If DIx is high, control ROx to open,
	270	+)))
152	152
	272	+(((
153	153	if DIx is low, control ROx to close
154	154	)))
155		-|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip
	275	+)))
	276	+|(% style="width:102px" %)(((
	277	+3
	278	+)))|(% style="width:331px" %)(((
	279	+DOx state flip
	280	+)))|(% style="width:268px" %)(((
	281	+ROx state flip
	282	+)))
156	156
	284	+(((
157	157	(% style="color:#4f81bd" %)**Example 4: **
	286	+)))
158	158
	288	+(((
159	159	**AT+GROUPMOD=0**  Set to point to point mode
	290	+)))
160	160
	292	+(((
161	161	**AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
	294	+)))
162	162
163	163	(((
	297	+(((
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	165	)))
	300	+)))
166	166
	302	+(((
167	167	**AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
	304	+)))
168	168
	306	+(((
169	169	**AT+GROUPMOD=1,1**  Set the RX group numbered 1
	308	+)))
170	170
	310	+(((
171	171	**AT+GROUPMOD=1,2**  Set the RX group numbered 2
	312	+)))
172	172
173	173
174	174	== **2.4 Data Format** ==
175	175
	317	+(((
176	176	8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
	319	+)))
177	177
	321	+(((
	322	+
	323	+)))
178	178
	325	+(((
179	179	(% style="color:#4f81bd" %)**Payload:**
	327	+)))
180	180
181	181	(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
182		-|=(% style="width: 123px;" %)**Size (bytes)**|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1
183		-|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)(((
	330	+|=(% style="width: 123px;" %)(((
	331	+**Size (bytes)**
	332	+)))|=(% style="width: 107px;" %)(((
	333	+1
	334	+)))|=(% style="width: 107px;" %)(((
	335	+1
	336	+)))|=(% style="width: 107px;" %)(((
	337	+1
	338	+)))|=(% style="width: 107px;" %)(((
	339	+1
	340	+)))|=(% style="width: 107px;" %)(((
	341	+1
	342	+)))|=(% style="width: 107px;" %)(((
	343	+1
	344	+)))|=(% style="width: 107px;" %)(((
	345	+1
	346	+)))|=(% style="width: 107px;" %)(((
	347	+1
	348	+)))|=(% style="width: 107px;" %)(((
	349	+1
	350	+)))
	351	+|(% style="width:123px" %)(((
	352	+**Value**
	353	+)))|(% style="width:38px" %)(((
	354	+address
	355	+)))|(% style="width:70px" %)(((
	356	+request
	357	+)))|(% style="width:52px" %)(((
	358	+ACK
	359	+)))|(% style="width:127px" %)(((
	360	+(((
184	184	DI1&
	362	+)))
185	185
	364	+(((
186	186	DI1 level
187		-)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)(((
	366	+)))
	367	+)))|(% style="width:101px" %)(((
	368	+DI1TODO1
	369	+)))|(% style="width:91px" %)(((
	370	+DI1TORO1
	371	+)))|(% style="width:111px" %)(((
	372	+(((
188	188	DI2&
	374	+)))
189	189
	376	+(((
190	190	DI2 level
191		-)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2
	378	+)))
	379	+)))|(% style="width:105px" %)(((
	380	+DI2TODO2
	381	+)))|(% style="width:106px" %)(((
	382	+DI2TORO2
	383	+)))
192	192
	385	+(((
193	193	(% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
	387	+)))
194	194
	389	+(((
195	195	(% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
	391	+)))
196	196
	393	+(((
197	197	(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
	395	+)))
198	198
199	199	(((
	398	+(((
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	201	)))
	401	+)))
202	202
	403	+(((
203	203	(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
	405	+)))
204	204
	407	+(((
205	205	(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
	409	+)))
206	206
207	207	(((
	412	+(((
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	209	)))
	415	+)))
210	210
	417	+(((
211	211	(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
	419	+)))
212	212
	421	+(((
213	213	(% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
	423	+)))
214	214
215	215