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...	...	@@ -273,36 +273,69 @@
273	273
274	274	== 4.6 Alarm Base on Timeout ==
275	275
	276	+(((
276	276	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	+)))
277	277
278		-
	280	+(((
279	279	User configure this feature by using:
	282	+)))
280	280
	284	+(((
	285	+
	286	+)))
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	288	+(((
282	282	(% style="color:blue" %)**AT Command**(%%) to configure:
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283	283
284		-* **AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open
	292	+* (((
	293	+**AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open
	294	+)))
285	285
	296	+(((
286	286	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	+)))
287	287
288		-* **AT+TTIG=0,0**  **~-~->**  Default Value, disable timeout Alarm.
	300	+* (((
	301	+**AT+TTIG=0,0**  **~-~->**  Default Value, disable timeout Alarm.
	302	+)))
289	289
	304	+(((
290	290	(% style="color:blue" %)**Downlink Command**(%%) to configure:
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291	291
	308	+(((
292	292	**Command: 0xA9 aa bb cc**
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293	293
	312	+(((
294	294	A9: Command Type Code
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	316	+(((
296	296	aa: status to be monitor
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	320	+(((
298	298	bb cc: timeout.
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299	299
	324	+(((
	325	+
	326	+)))
300	300
	328	+(((
301	301	If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30
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302	302
	332	+(((
303	303	Or
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	336	+(((
305	305	0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm.
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...	...	@@ -315,7 +315,6 @@
315	315	|(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
316	316	|(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
317	317
318		-
319	319	= 5. Battery & How to replace =
320	320
321	321	== 5.1 Battery Type and replace ==
...	...	@@ -363,17 +363,20 @@
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364	364	LWL02 supports AT Command set. User can use a USB to TTL adapter to configure LWL02 via use AT command, as below.
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366		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
	398	+[[image:image-20220608160336-1.png]]
367	367
368		-USB to TTL <- -> LWL02
	400	+*
	401	+** (% style="background-color:yellow" %)USB to TTL <- -> LWL02
369	369
370		-RX <- -> TX
	403	+*
	404	+** (% style="background-color:yellow" %)RX <- -> TX
371	371
372		-TX <- -> RX
	406	+*
	407	+** (% style="background-color:yellow" %)TX <- -> RX
373	373
374		-GND <- -> GND
	409	+*
	410	+** (% style="background-color:yellow" %)GND <- -> GND
375	375
376		-
377	377	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:
378	378
379	379	The AT Access password is **123456**.