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Author

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1		-XWiki.Bei
	1	+XWiki.Edwin

Content

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11	11
12	12
13	13	Shipped LT-22222-L is base on LoRaWAN protocol. We also develop a open source Point to Point LoRa protocol for LT-22222-L. The source code and hex file can be found at:
14		-)))
15	15
16		-(((
17		-[[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
	15	+* [[Source Code>>https://github.com/dragino/LT-22222-L]].
	16	+* [[Firmware>>https://github.com/dragino/LT-22222-L/releases]].
18	18	)))
19	19
20		-
21	21	= 2. Features for this firmware =
22	22
23	23	== 2.1  Point To Point ==
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43	43	|(% style="width:179px" %)AT+DI2TODO2=2 |(% style="width:177px" %)AT+DI2TODO2=2
44	44	|(% style="width:179px" %)AT+DI2TORO2=2|(% style="width:177px" %)AT+DI2TORO2=2
45	45
46		-
47	47	=== 2.2.3 Serial port display ===
48	48
49	49
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371	371	)))
372	372
373	373
374		-=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
	371	+=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3.2) ===
375	375
376	376
377	377	**AT+TRIGx=a          **Trigger transmit directly without triggering time
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403	403
404	404	**Command:**
405	405
406		-**AT+TRIG2=2,50,60**  Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO.
	403	+**AT+TRIG2=2,50,60**  Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO. After power off, power on, LT1 will send trigger without falling/rising edge, so the DI changes during power off will be sync as well.
407	407
408	408
409		-=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) ===
	406	+=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3.2) ===
410	410
411	411
412		-AT+DI1TODO1= maps value[,latch time]
	409	+AT+DI1TODO1= maps value[,latch time, timeout_state]
413	413
414		-AT+DI1TORO1= maps value[,latch time]
	411	+AT+DI1TORO1= maps value[,latch time, timeout_state]
415	415
416		-AT+DI2TODO2= maps value[,latch time]
	413	+AT+DI2TODO2= maps value[,latch time, timeout_state]
417	417
418		-AT+DI2TORO2= maps value[,latch time]
	415	+AT+DI2TORO2= maps value[,latch time, timeout_state]
419	419
420	420
421	421	(% border="1" style="background-color:#f7faff; color:black; width:774px" %)
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433	433	)))
434	434	|(% style="width:105px" %)3|(% style="width:415px" %)DOx state flip|(% style="width:249px" %)ROx state flip
435	435
436		-latch time, if latch time is defined, DO or RO will go back to the original status after latch time, if there is a new trigger comes, the LT2 will use the new latch time settings and ignore the old one.
	433	+**latch time**, if latch time is defined, DO or RO will go back to the original status after latch time, if there is a new trigger comes, the LT2 will use the new latch time settings and ignore the old one.
437	437
438	438
	436	+**Timeout_State**:
	437	+
	438	+0: **No change** after timeout
	439	+
	440	+1: Change to **DO:0** or **RO: Open** after timeout
	441	+
	442	+2: Change to **DO:1** or **RO: Close** after timeout
	443	+
	444	+3: Change **back to state** before last trigger arrive.
	445	+
	446	+
439	439	(% style="color:blue" %)**Case1**:
440	440
441	441	AT+DI1TODO1=1  ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, if DI1 of LT1 is trigger high, DO1 of LT2 will output low, if DI1 of LT1 is trigger low, DO2 of LT2 will output high.
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443	443
444	444	(% style="color:blue" %)**Case2**:
445	445
446		-AT+DI1TODO1=1,60  ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then go back to original state.
	454	+AT+DI1TODO1=1,60,1  ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then change to open.
447	447
448	448
449	449	=== 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) ===
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482	482
483	483	When DI2 is enabled as sleep pin, a falling trigger (with 500ms pulse) will set LT into sleep mode. A raising trigger will wake up it again.
484	484
	493	+In sleep mode, DORO will keep its initial state if AT+DOROSAVE=2, otherwise DORO will be in OFF state
485	485
	495	+
486	486	== 2.4 Data Format ==
487	487
488	488
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491	491	)))
492	492
493	493	(((
494		-(% style="color:blue" %)**Payload:**
	504	+(% style="color:blue" %)**Payload:Payload triggered by TDC or DI**
495	495	)))
496	496
497	497	(% border="1" style="background-color:#f7faff; color:black; width:825px" %)
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654	654
655	655	(((
656	656	(((
657		-(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DOI1, and the low four bits are the level of DOI1 when the interrupt is triggered.
	667	+(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DOI1, and the low four bits are the level of DOI2 when the interrupt is triggered.
658	658	)))
659	659	)))
660	660