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...	...	@@ -273,69 +273,36 @@
273	273
274	274	== 4.6 Alarm Base on Timeout ==
275	275
276		-(((
277	277	LWL02 can monitor the timeout for a status change, this feature can be used to monitor some event such as open fridge too long etc.
278		-)))
279	279
280		-(((
	278	+
281	281	User configure this feature by using:
282		-)))
283	283
284		-(((
285		-
286		-)))
287	287
288		-(((
289	289	(% style="color:blue" %)**AT Command**(%%) to configure:
290		-)))
291	291
292		-* (((
293		-**AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open
294		-)))
	284	+* **AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open
295	295
296		-(((
297	297	status for more than 30 seconds. LWL02 will send an uplink packet, the Alarm bit (the lowest bit of 10^^th^^ byte of payload) on this uplink packet is set to 1.
298		-)))
299	299
300		-* (((
301		-**AT+TTIG=0,0**  **~-~->**  Default Value, disable timeout Alarm.
302		-)))
	288	+* **AT+TTIG=0,0**  **~-~->**  Default Value, disable timeout Alarm.
303	303
304		-(((
305	305	(% style="color:blue" %)**Downlink Command**(%%) to configure:
306		-)))
307	307
308		-(((
309	309	**Command: 0xA9 aa bb cc**
310		-)))
311	311
312		-(((
313	313	A9: Command Type Code
314		-)))
315	315
316		-(((
317	317	aa: status to be monitor
318		-)))
319	319
320		-(((
321	321	bb cc: timeout.
322		-)))
323	323
324		-(((
325		-
326		-)))
327	327
328		-(((
329	329	If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30
330		-)))
331	331
332		-(((
333	333	Or
334		-)))
335	335
336		-(((
337	337	0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm.
338		-)))
339	339
340	340
341	341
...	...	@@ -348,6 +348,7 @@
348	348	|(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
349	349	|(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
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	318	+
351	351	= 5. Battery & How to replace =
352	352
353	353	== 5.1 Battery Type and replace ==
...	...	@@ -397,18 +397,15 @@
397	397
398	398	[[image:image-20220608160336-1.png]]
399	399
400		-*
401		-** (% style="background-color:yellow" %)USB to TTL <- -> LWL02
	368	+USB to TTL <- -> LWL02
402	402
403		-*
404		-** (% style="background-color:yellow" %)RX <- -> TX
	370	+RX <- -> TX
405	405
406		-*
407		-** (% style="background-color:yellow" %)TX <- -> RX
	372	+TX <- -> RX
408	408
409		-*
410		-** (% style="background-color:yellow" %)GND <- -> GND
	374	+GND <- -> GND
411	411
	376	+
412	412	In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **115200** to access to access serial console of LWL02. Below is the output for reference:
413	413
414	414	The AT Access password is **123456**.
...	...	@@ -489,4 +489,3 @@
489	489	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
490	490	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
491	491
492		-