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244	244	User need to configure SDI-12-LB to communicate with SDI-12 sensors otherwise the uplink payload will only include a few bytes.
245	245
246	246
247		-=== 2.3.1 Basic SDI-12 debug command ===
	247	+=== 2.3.1 ​​​​​​​Basic SDI-12 debug command ===
248	248
249	249
250	250	User can run some basic SDI-12 command to debug the connection to the SDI-12 sensor. These commands can be sent via AT Command or LoRaWAN downlink command.
...	...	@@ -419,38 +419,34 @@
419	419	[[image:image-20230201092355-16.png]]
420	420
421	421
422		-​​​​​​​[[image:image-20230201092355-17.png||height="426" width="1135"]]
	422	+[[image:image-20230201092355-17.png||height="426" width="1135"]]
423	423
	424	+1.
	425	+11.
	426	+111. Convert ASCII to String
424	424
425		-​​​​​​​
426		-
427		-=== 2.3.3 Convert ASCII to String ===
428		-
429		-
430	430	This command is used to convert between ASCII and String format.
431	431
	430	+
432	432	AT+CONVFORM ( Max length: 80 bytes)
433	433
	433	+Example:
434	434
435		-**Example:**
	435	+1)AT+CONVFORM=0,string   Convert String from String to ASCII
436	436
437		-1) AT+CONVFORM=0, string Convert String from String to ASCII
	437	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
438	438
439		-[[image:1675214845056-885.png]]
440	440
	440	+2)AT+CONVFORM=1,ASCII   Convert ASCII to String.
441	441
442		-2) AT+CONVFORM=1, ASCII Convert ASCII to String.
	442	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
443	443
444		-[[image:1675214856590-846.png]]
445	445
446	446
	446	+1.
	447	+11.
	448	+111. Define periodically SDI-12 commands and uplink.
447	447
448		-
449		-​​​​​​​
450		-
451		-=== 2.3.4 Define periodically SDI-12 commands and uplink. ===
452		-
453		-
454	454	AT+COMMANDx & AT+DATACUTx
455	455
456	456	User can define max 15 SDI-12 Commands (AT+COMMAND1 ~~ AT+COMMANDF). On each uplink period (TDC time, default 20 minutes), SDI-12-LB will send these SDI-12 commands and wait for return from SDI-12 sensors. SDI-12-LB will then combine these returns and uplink via LoRaWAN.
...	...	@@ -460,21 +460,21 @@
460	460
461	461	**AT+COMMANDx=var1,var2,var3,var4.**
462	462
463		-**var1**: SDI-12 command , for example: 0RC0!
	459	+var1: SDI-12 command , for example: 0RC0!
464	464
465		-**var2**: Wait timeout for return. (unit: second)
	461	+var2: Wait timeout for return. (unit: second)
466	466
467		-**var3**: Whether to send //addrD0!// to get return after var2 timeout. 0: Don't Send //addrD0! //; 1: Send //addrD0!//.
	463	+var3: Whether to send //addrD0!// to get return after var2 timeout. 0: Don’t Send //addrD0!//; 1: Send //addrD0!//.
468	468
469		-**var4**: validation check for return. If return invalid, SDI-12-LB will resend this command. Max 2 retries.
	465	+var4: validation check for return. If return invalid, SDI-12-LB will resend this command. Max 2 retries.
470	470
471		-**0 ** No validation check;
	467	+0  No validation check;
472	472
473		-**1**  Check if return chars are printable char(0x20 ~~ 0x7E);
	469	+1  Check if return chars are printable char(0x20 ~~ 0x7E);
474	474
475		-**2**  Check if there is return from SDI-12 sensor
	471	+2  Check if there is return from SDI-12 sensor
476	476
477		-**3**  Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
	473	+3  Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
478	478
479	479
480	480	Each AT+COMMANDx is followed by a **AT+DATACUT** command. AT+DATACUT command is used to take the useful string from the SDI-12 sensor so the final payload will have the minimum length to uplink.
...	...	@@ -482,15 +482,14 @@
482	482
483	483	**AT+DATACUTx** : This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
484	484
485		-(% border="1" style="background-color:#f7faff; width:436px" %)
486		-|(% style="width:433px" %)(((
	481	+|(((
487	487	AT+DATACUTx=a,b,c
488	488
489		-**a**:  length for the return of AT+COMMAND
	484	+a: length for the return of AT+COMMAND
490	490
491		-**b**: 1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
	486	+b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
492	492
493		-**c**:  define the position for valid value.
	488	+c: define the position for valid value.
494	494	)))
495	495
496	496	For example, if return from AT+COMMAND1 is “013METER   TER12 112T12-00024895” ,. Below AT+DATACUT1 will get different result to combine payload:

image-20230201094129-18.png

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1		-XWiki.Xiaoling

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