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1		-XWiki.Edwin
	1	+XWiki.Xiaoling

Content

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21	21	= 2. How to use AT Commands or Downlink command =
22	22
23	23
24		-* **AT Command** : See Devices User Manual for how to connect to device via USB TTL adapter and use. The user manual can be found in each product page of **[[Dragino Products User Manual>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/]]**.
	24	+* **AT Command** : See Devices User Manual for how to connect to device via USB TTL adapter and use. The user manual can be found in each product page of [[Dragino Official Website>>url:http://www.dragino.com/]]
25	25
26	26	* **LoRaWAN Downlink Command**: The gateway transfer downlink command in HEX format. This page shows the Downlink Command In HEX format. Please note some LoRaWAN servers use base64 as downlink code so user need to convert HEX to Base64 and use. Below are references for how to use downlink command:
27	27	** Use HEX format to send a downlink: [[TTN v3>>Notes for TTN]]
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604	604
605	605	(% style="display:none" %) (%%)
606	606
607		-== 6.8 Send Text Data（Note: The format of this command of LA66 is subject to the manual） ==
	607	+== 6.8 Send Text Data ==
608	608
609	609
610	610	Feature: Send Text Data<port:data>.
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621	621
622	622	(% style="display:none" %) (%%)
623	623
624		-== 6.9 Send Hexadecimal Data（Note: The format of this command of LA66 is subject to the manual） ==
	624	+== 6.9 Send Hexadecimal Data ==
625	625
626	626
627	627	Feature: Send hexadecimal data along with the application port.
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1216	1216	AT+DDETECT=<Flag>,<ACK_Timout_1>,<ACK_Timout_2> (Default Value: AT+DDETECT=1,1440,2880)
1217	1217
1218	1218	* ACK_Timout_1: Unit: min
1219		-
1220	1220	* ACK_Timout_2: Unit: min
1221	1221
1222	1222	(% border="1" style="background-color:#f2f2f2; width:562px" %)
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1258	1258	* **Example 1:** Downlink Payload: 320105A00B40  ~/~/ Set AT+DDETECT=1,1440,2880
1259	1259
1260	1260	*
1261		-** 0x01** : Flag**
	1260	+** 0x01 : Flag
	1261	+** 0x05A0: ACK_Timout_1 : 1440minutes (24 hours)
	1262	+** 0x0B40: ACK_Timout_2 : 2880minutes (48 hours)
	1263	+** **Explain**: Enable Online Detect, if end node doesn't receive any downlink within ACK_Timout_1( 1440 minutes or 24 hours). End node will use confirmed uplink to send packets during ACK_Timout_1 (the 24th hour) to ACK_Timout_2 ( the 48th hour). If from the 24th to 48th hour, end node got an downlink from server, it will switch back to unconfirmed uplink. end node will restart ACK_Timout_1. If from the 24th to 48th hour, end node still not got any downlink, means device doesn't get ACK from server within last 48 hours. Device will process rejoin, rejoin request interval is AT+RJTDC period. For AU915/ US915, device will use the sub-band used for last join.
1262	1262
1263		- **0x05A0 **: ACK_Timout_1 : 1440minutes (24 hours)
1264		-
1265		- **0x0B40 **: ACK_Timout_2 : 2880minutes (48 hours)
1266		-
1267		-* **Explain**: Enable Online Detect, if end node doesn't receive any downlink within ACK_Timout_1( 1440 minutes or 24 hours). End node will use confirmed uplink to send packets during ACK_Timout_1 (the 24th hour) to ACK_Timout_2 ( the 48th hour). If from the 24th to 48th hour, end node got an downlink from server, it will switch back to unconfirmed uplink. end node will restart ACK_Timout_1. If from the 24th to 48th hour, end node still not got any downlink, means device doesn't get ACK from server within last 48 hours. Device will process rejoin, rejoin request interval is AT+RJTDC period. For AU915/ US915, device will use the sub-band used for last join.
1268		-
1269	1269	(% style="display:none" %) (%%)
1270	1270
1271	1271	== 7.26 Request the server to send an ACK ==
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1283	1283	OK
1284	1284	)))
1285	1285
1286		-(% style="display:none" %) (%%) (% style="color:blue" %)**Downlink Command: 0x34**
	1282	+(% style="display:none" %) (%%)
1287	1287
1288		-0X34 01  ~/~/Same As AT+PNACKMD=1
1289		-
1290		-0x34 00  ~/~/Same As AT+PNACKMD=0
1291		-
1292		-
1293	1293	== 7.27 Adjust network rejoining interval ==
1294	1294
1295	1295