RS485 Sensor LoRaWAN Cov Ntaub Ntawv Logger LS820
v 3.0
Khoom Tshajview
LS820 yog qhov ua tau zoo, kev siv hluav taws xob tsawg, kev ncua deb RS485 sensor cov ntaub ntawv logger ntaus ntawv. LS820 tuaj yeem txuas nrog max 3 MODBUS-RTU RS485 sensors thiab nquag siv cov RS485 sensors nyob rau lub sijhawm teeb tsa kom ua tiav qhov ntev, ultra-low fais fab wireless kis ntawm cov ntaub ntawv sensor mus rau LoRaWAN / LoRa network. LS820 muaj hnub ci vaj huam sib luag, Lithium roj teeb, GPS module thiab LoRa xov tooj cua board. Nws tuaj yeem txhawb nqa lub sensor rau siab, qib kua, kua ntws thiab lwm yam RS485 sensors. Cov txiaj ntsig los ntawm LoRa thiab IP66 tsim, cov cuab yeej no muaj kev ruaj ntseg thiab kev ntseeg tau thiab tuaj yeem npog ntau qhov sib kis tau ntev thaum khaws cia ultra-tsawg zog noj, zoo tagnrho rau siv sab nraum zoov.
- Ultra-tsawg zog noj thaum nws yog standby.
- Standby tam sim no tsawg dua 6uA.
- 2600mAh 12V lithium roj teeb ua hauv.
- GPS txoj hauj lwm muaj.
- Txhawb Modbus raws tu qauv thiab LoRaWAN network.
- Built-in loj muaj peev xwm lithium roj teeb thiab lub hnub ci vaj huam sib luag. Cov neeg siv tsis tas yuav them thiab hloov lub roj teeb.
- IP66 waterproof tsim, ntsia hlau qhov tsau rau ntawm phab ntsa, me me thiab yooj yim installation.
- Teeb lub sampling lub sij hawm thiab xa cov ntaub ntawv sensor periodically.
- Cov ntaub ntawv sensor tuaj yeem xa mus rau huab server / LoRaWAN server.
- Txhawb nqa siab ua kua theem sensors, av sensor, huab cua sensor thiab lwm yam RS485 sensors.
- Txhawb 3 MODBUS-RTU RS485 sensors rau ib qho LS820
Kev xa cov ntaub ntawv wireless siv LoRa, LoRaWAN thiab NB-IoT kev daws teeb meem:
LoRa Solution (LS820L): Semtech's low-power long-range LoRa kis spectrum wireless data transmission solution Sx1276, nrog lub teeb liab npog ntawm 1km.
NB-IoT kev daws teeb meem (LS820N): Raws li MTK kev ua haujlwm siab NB-IoT nti, tag nrho Netcom network tus qauv, hloov mus rau peb tus neeg siv xov tooj loj, tsim hluav taws xob tsawg, cov ntaub ntawv raug xa ncaj qha mus rau cov neeg siv huab platform los ntawm NB chaw nres tsheb. .
Technical Specifications
| Hom wireless | LoRa / LoRaWAN kev daws teeb meem | NB-IoT kev daws teeb meem |
| Ntau zaus | 433MHz, 490MHz, 868MHz, 915MHz | Txhua pawg |
| Ntau yam | 2 km rau 10km kab pom | Kev them nyiaj yug NB-IoT network |
| Hwj chim | 2600mAh lithium roj teeb (siab thiab kub tsis tshua muaj roj teeb yog xaiv tau) | |
| 5W them hnub ci vaj huam sib luag (them tam sim no max 300mA) | ||
| Chaw nres nkoj | RS485 chaw nres nkoj, liab yog VCC (12V). dub yog GND. Cov xim daj yog 485A, Ntsuab yog 485B. | |
| Hloov pauv txiaj | <130mA | |
| GPS paramter | Txhawb GSP thiab BD txoj hauj lwm qhov tseeb: ≤2.5m | |
| Standby txiaj | 6 ua | |
| Cov xwm txheej ua haujlwm | Sab nraum zoov, -20 ~ 55 ° C av noo 0-95%; | |
| Waterproof | IP66 | |
| Pw tsaug zog noj | 10 ua | |
| LED qhia | Nkag mus rau hom kev teeb tsa, xiav qeeb flashing (yog tias tsis muaj kev ua haujlwm, nws yuav cia li tawm tom qab 30 vib nas this thiab pib pw tsaug zog); Thaum xa cov ntaub ntawv, lub teeb xiav flashes. Tshawb xyuas txhua 10 vib nas this thiab lub teeb liab flashes ib zaug. Thaum lub hnub ci vaj huam sib luag tau them, lub teeb liab yog nyob rau, thiab lub teeb tawm tom qab them tag nrho. |
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| Parameter configuration | Txuas cov ntaub ntawv cable, cov hlau nplaum attracts Hall hloov mus rau lub configuration hom, configure qhov tsis thiab sau cov ntaub ntawv commands | |
| txoj kev ntawm sensor cov ntaub ntawv sau | Daim ntawv ceeb toom lub sij hawm, qhov tsawg kawg nkaus tuaj yeem teem caij rau 1 feeb, qhov ntev tshaj plaws yog 65536 feeb, yog tias tsis teem, nws yuav tsis qhia. | |
| Tswb pib | Lub tswb ntsuas tus nqi tuaj yeem teeb tsa. Thaum lub tswb tshwm sim, nws yuav raug tshaj tawm peb zaug hauv 1 feeb; yog tsis tau teem tseg, yuav tsis qhia. | |
| qhov loj thiab qhov hnyav | 200 * 180 * 30mm, 770g (nrog lithium roj teeb) | |
Dimension.
Installation ntawm LS820
Thaum txhim kho LS820, sim ua kom lub kav hlau txais xov perpendicular mus rau lub dav hlau kab rov tav, thiab kev sib txuas lus wireless yog qhov zoo tshaj plaws.
Thaum txhim kho LS820, raws li qhia hauv daim duab hauv qab no, nws tuaj yeem ntsia tau ze rau ntawm phab ntsa nyob rau hauv parallel los yog tsau, los yog mus rau hauv av. Nws tuaj yeem qhib tau (hauv 1 meter) nyob ib puag ncig tus neeg sau khoom, tsis muaj kev cuam tshuam, thiab cov txiaj ntsig kev sib txuas lus wireless yog qhov zoo tshaj plaws.
a, Muaj peb feem ntawm lub bracket.
b, Nruab lub bracket ntawm lub hnub ci vaj huam sib luag
c, Nruab lub bracket rau ntawm phab ntsa
d, Txuas lub hnub ci lub ntsiab lub rooj tsavxwm nrog lub bracket, ntxig lub bracket rau hauv lub ntsiab qhov tseem ceeb thiab ceev lub zog.
Parameter configuration
Tom qab txuas cov khoom siv rau lub khoos phis tawj los ntawm RS485 cov ntaub ntawv cable, nkag mus rau hom kev teeb tsa los ntawm kev sib nqus tswj kev hloov pauv (kaw ib lub hlau nplaum ze rau ntawm qhov sib nqus tswj kev hloov, qhov taw qhia lub teeb yog ib txwm nyob, qhia tias hom kev teeb tsa tau nkag mus). Lub sijhawm no, tus neeg sau khoom yog nyob rau hauv lub xeev teeb tsa. "Sensor Terminal Configuration Tool", nyem "Serial Chaw nres nkoj" kom pop li "Serial Port Configuration Page", xaiv COM chaw nres nkoj ntawm cov khoom siv los txuas rau lub computer, siv tus nqi baud ntawm 9600, thiab qhib nrog NO.
- Lub sijhawm sau tuaj yeem kho tau. Thaum lub sijhawm no tas sijhawm, RS485 cov ntaub ntawv sensor raug sau thiab xa mus rau lub server.
- Cov cuab yeej muaj qhov ua haujlwm tsis siv neeg qhov chaw, thiab qhov chaw hloov tshiab ib hnub ib zaug.
- Sib nqus nqus nqus tuaj yeem ua rau kev sau cov ntaub ntawv thiab tshaj tawm cov ntaub ntawv.
- Cov ntaub ntawv tshaj tawm yog khaws cia hauv zos. Raws li kev thaub qab, tus neeg siv tuaj yeem nyeem cov ntaub ntawv khaws tseg hauv zos los ntawm lub zos los ntawm qhov chaw nres nkoj serial, lossis nkag mus rau cov ntaub ntawv khaws tseg.
- Tus neeg rau zaub mov lossis tus tswv cuab yeej tuaj yeem xa cov kev teeb tsa tsis raug ntawm LS820 (lub sijhawm ntsuas cov ntaub ntawv tau txais)
- Cov lus txib kom ua haujlwm lub sensor tuaj yeem teeb tsa.
Muaj 4 qhov chaw ntawm lub cuab yeej RF. Sab laug cheeb tsam yog qhov parameter configuration thiab sab sauv ntawm sab laug yog serial chaw nres nkoj configuration cheeb tsam. Qhov nruab nrab sab laug yog qhov yooj yim parameter configuration cheeb tsam ntawm LS820. thiab cov hauv qab no yog qhov chaw thiab cov ntaub ntawv keeb kwm kev nyeem ntawv. Qhov seem dawb paug ntawm sab xis yog qhov chaw luam ntawv tso saib thaj chaw, uas yog qhov debugging cov ntaub ntawv tso tawm qhov rai. Tus neeg sau yuav tso tawm cov ntaub ntawv debugging tam sim no thaum lub sijhawm ua haujlwm, uas yooj yim rau cov neeg siv view.
| Parameter | Kev qhia meej | |||||||||
| Ntau zaus | 433MHz, 490MHz, 868MHz, 915MHz | |||||||||
| Ua tsis taus pa | 2,4,8,16,32,64ms (2Ms-5Kbps,4Ms-3Kbps,8Ms-1.7Kbps,16Ms-1Kbps, 32Ms-0.5Kbps,64Ms-0.3Kbps) | |||||||||
| Node ID | 0-65535 : kuv | |||||||||
| Net ID | 0-255 : kuv | |||||||||
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Tso zis zog |
Qib | 7 | 6 | 5 | 4 | 3 | 2 | 1 | ||
| dBm ib | 19.5-20 : kuv | 17.5-18 : kuv | 14.5-15.5 : kuv | 11.5-12.5 : kuv | 8.5-9.5 : kuv | 5.5-6.5 : kuv | 5.5-6.5 : kuv | |||
| mA | 110-120 : kuv | 90-100 : kuv | 60-70 : kuv | 45-55 : kuv | 40-45 : kuv | 30-40 : kuv | 30-40 : kuv | |||
| Sample
lub sij hawm |
0-65535mins, teeb "0" txhais tau tias LS820 raug kaw. | |||||||||
| Sensor hom | Muaj ib co txhais sensors los ntawm RF tool.0x00 yog tsis muaj txhais sensor.0x01 yog YD-10mh qib sensor. 0x02 yog BL-100. 0x02 yog L2MBV laser sensor | |||||||||
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Lub sijhawm nquag |
Qhov parameter no qhia txog lub sijhawm tos txais tom qab xa cov ntaub ntawv. Chav tsev yog xam nyob rau hauv vib nas this. Hauv lub sijhawm no, cov lus qhia tawm los ntawm tus neeg rau zaub mov tuaj yeem tau txais, txij li 0 txog 30 vib nas this |
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| Sensor Pwr | Nws qhia tias ntev npaum li cas LS820 pib sau cov ntaub ntawv tom qab muab lub zog rau lub sensor. Qhov ntau yog 0 txog 30 vib nas this, uas tuaj yeem teeb tsa | |||||||||
| Sensor Command | Hais kom xa thaum tau txais cov ntaub ntawv sensor | |||||||||
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SA lub sijhawm |
Qhia txog lub sijhawm ntawm cov ntaub ntawv sensor upload rau tus tswv. Nws yog tsim raws li feeb, qhov ntau yog 0 ~ 65535, thiab qhov chaw yog 0, uas txhais tau hais tias LS820 tsis ua haujlwm. | |||||||||
| Node ID | tus cim ID ntawm LS820, qhov ntau tuaj yeem teeb tsa los ntawm 0 ~ 4294967295. | |||||||||
| Sau Para | Sau qhov parameter. | |||||||||
| Nyeem Para | Nyeem qhov parameter. | |||||||||
| Nyeem Ver | Nyeem tus lej version ntawm LS820 | |||||||||
| Longitude thiab Latitude | Qhov parameter no yog cov ntaub ntawv qhia chaw ntawm cov khoom siv. Nws yog 0 thaum siv thawj zaug. Koj tuaj yeem teeb nws manually; Tus neeg sau hloov kho cov ntaub ntawv tso npe ib zaug txhua 24 teev thiab pib qhov chaw ib zaug 2 feeb tom qab thawj lub zog ntawm | |||||||||
Tso cov ntaub ntawv sensor los ntawm Rf tool
Lub tuam txhab muab RF1276T LoRa wireless data kis module RF1276T. Cov neeg siv yuav tsum tau teeb tsa RF1276T raws li Central hom, Ua tsis taus pa ntawm LS820 yuav tsum zoo ib yam li lub sijhawm sawv ntawm RF1276T. Qhov zaus thiab Net ID yuav tsum zoo ib yam rau LS820 thiab RF1276T. Tom qab kev teeb tsa tiav, RF1276T tuaj yeem siv los ua tus tswv tsev computer module los sib txuas lus nrog lub sensor thiab tso saib cov ntaub ntawv sensor ntawm RF cuab tam.
Appconwireless muab USB-TTL USB adapter cable, uas tuaj yeem txuas TTL tus tswv lub khoos phis tawj module rau lub khoos phis tawj USB interface rau kev teeb tsa lossis cov ntaub ntawv tau txais.
Tus tswv cuab yeej muaj kev mob siab rau kev teeb tsa software, thiab cov tsis muaj wireless (xa zaus, lub sijhawm ua pa, chaw nyob hauv network) yuav tsum tau teeb tsa kom ua raws li RS485 sensor.
Thaum lub sensor nyob hauv lub xeev ua haujlwm, cov ntaub ntawv sensor yuav raug tshaj tawm tsis tu ncua raws li lub sijhawm sau cov khoom suav nrog ID ntaus ntawv, lub sijhawm upload, roj teeb lub zog, siab, theem, xwm txheej, thiab lwm yam.
Lub sensor yuav ua qhov ntsuas kub thiab av noo txhua 20 vib nas this. Yog tias ib qho ntaub ntawv tshaj li qhov teeb tsa lub tswb, cov ntaub ntawv kub thiab av noo (nrog rau cov lus ceeb toom xwm txheej) yuav raug tshaj tawm. Lub voj voog ntawm kev yuav khoom yuav rov ua dua.
Cov txheej txheem ntawm LS820.
LS820 muaj lub uplink thiab downlink raws tu qauv uas haum rau tag nrho cov RS485 sensing li. Cov pob ntawv cov ntaub ntawv kuj tau muab faib ua cov ntaub ntawv uplink thiab cov ntaub ntawv downlink. Uplink cov ntaub ntawv qhia tias cov ntaub ntawv sau los ntawm LS820 raug xa mus rau tus tswv ntaus ntawv. LS820 nquag xa cov ntaub ntawv mus rau tus tswv ntaus ntawv. Cov ntaub ntawv Downlink txhais tau hais tias tus tswv cuab yeej xa cov ntaub ntawv mus rau LS820. LS820 qhib qhov rais txais tom qab xa cov ntaub ntawv sensor rau tus tswv, thiab muaj lub sijhawm txwv (lub sijhawm teem los ntawm lub cuab yeej rf, qhov siab tshaj plaws yog 30S), Lub sijhawm no, tus tswv ntaus ntawv tuaj yeem xa cov ntaub ntawv mus rau LS820.
Cov ntaub ntawv pob ntawv ntawm LS820.
8.1 Uplink cov ntaub ntawv pob ntawv hom
Daim duab 1, hom ntawv ntawm cov ntaub ntawv uplink
| taub hau | Node ID | Xov tooj cua hom | Function code | Ntev ntawm payload | payload | CRC | Xaus byte |
| 1byte ib | 4byte ib | 1byte ib | 1byte ib | 1byte ib | N ib bytes | 1byte ib | 1byte ib |
| 5E | 05 E8 25 61 | C3 | 01 | 0N | Kos daim duab 2 | Tshawb xyuas | 16 |
Daim duab 2, Payload format
| Voltage roj teeb | GPS_E | GPS_N | Cov ntaub ntawv sensor | Lub sij hawm ntawm kev hnov | Lub sijhawm ua haujlwm | Tus lej version | SN ntawm pob ntawv | Hnub ci nqi |
| VCC_ADC | Ntev | Latitude | DATA | SA Lub Sijhawm | Lub sijhawm nquag | Version | Tsis muaj. | On/off |
| 2 bytes | 8 bytes | 8byte ib | N ib bytes | 2 bytes | 2 bytes | 1 byte ib | 2 bytes | 1 byte ib |
| Ib exampLe ntawm LS820 tau txais cov ntaub ntawv pob
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| Lub taub hau | 0 x5e | Lub header ntawm cov ntaub ntawv hom, Tus nqi yog tsau li 0x5E |
| Node ID | 0 x 00 0 x 00 0 x 00 0 x 09 |
Cov node ID yog tus ntaus ntawv ID. Nws tuaj yeem tsim los ntawm RF cuab yeej. Nws muaj ob bytes. |
| Xov tooj cua hom | 0 xc3 | 0XC3 yog lora xov tooj cua. |
| Sensor hom | 0 x 00 | Nws sawv cev rau hom sensor. Muaj ib co txhais sensors los ntawm RF tool.0x00 yog tsis muaj txhais sensor.0x01 yog YD-10mh qib sensor. 0x02 yog BL-100. 0x02 yog L2MBV laser sensor. |
| Qhov ntev ntawm
payload |
0 x 23 | Tus nqi qhia cov ntaub ntawv ntev ntawm cov ntaub ntawv payload. 0X23 txhais tau tias 35 bytes ntawm cov ntaub ntawv them nyiaj |
| Roj teeb voltage | 0 x 04 0 x 54 |
Tus nqi qhia tias lub roj teeb voltagib ls820. Cov neeg siv yuav tsum hloov tus nqi hex mus rau tus lej lej. Thiab faib nrog 100 yog tus nqi tiag tiag ntawm voltage. "0x04 0x54" sawv cev rau voltage11.08v ua. |
| Ntev | 0 x 42 0xE3 0xE0 0 x 89 0 x 00 0 x 00 0 x 00 0 x 00 |
Longitude thiab latitude yog floating point kab cov ntaub ntawv. Nyob rau hauv qhov kev pab cuam, lub floating point kab occupies 4 bytes ntawm lub cim xeeb. Hauv cov txheej txheem, longitude thiab latitude muab 8 bytes cov ntaub ntawv. Tab sis plaub bytes kawg tau tseg thiab tsuas yog thawj plaub bytes siv tau. Cov plaub bytes no yog ntab taw tes kab cov ntaub ntawv pov rau plaub bytes. |
| Latitude | 0 x 41 0 xb4 0 x5f 0 x 68 0 x 00 |
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| 0 x 00 0 x 00 0 x 00 |
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| Cov ntaub ntawv sensor | 0 x 33 0 x 33 0 x 33 0 x 33 0 x 33 0 x 33 0 x 33 0 x 33 0 x0d 0 x0a |
Cov ntaub ntawv sensor yog cov ntaub ntawv raw ntawm sensor. Cov sensors sib txawv muaj cov ntaub ntawv sib txawv sensor. Thov xyuas qhov specification ntawm txhua lub sensor. Yog tias tsis muaj lub sensor txuas nrog LS820. Cov ntaub ntawv sensor yog 0xFF 0xFF. LS820 txhawb nqa max 3 sensors txuas nrog. Hauv RF cuab yeej, muaj "hais 1", "command 2", "command 3" .. Cov ntaub ntawv sensor tso saib nrog cov kab ke ntawm "command 1, command 2 and command 3" . Thaum cov neeg siv txais 3 tib lub sensors nrog LS820. Cov sensors ib txwm txhawb nqa tus ID txhawm rau txheeb xyuas nrog txhua lub sensor. |
| SA lub sijhawm | 0 x 00 0 x 01 |
Lub sijhawm SA yog lub sijhawm ntev npaum li cas uas sensor ua haujlwm kom tau txais cov ntaub ntawv. Nws chav tsev yog feeb.Yog tias nws yog "0x00 0x00", lub sensor tsis ua haujlwm. "0x00 0x01" yog 1 min. |
| Lub sijhawm nquag | 0 x 05 | Lub sijhawm nquag qhia txog lub sijhawm tos txais tom qab xa cov ntaub ntawv. Chav tsev yog xam nyob rau hauv vib nas this. Hauv lub sijhawm no, cov lus qhia tawm los ntawm lub server tuaj yeem tau txais. Chav tsev yog thib ob, nws qhov ntau yog los ntawm 0 txog 30 vib nas this. 0x05 ua 5s. |
| Version Tsis. | 0 x 12 | Nws qhia tus naj npawb ntawm LS820, 0x12 yog V1.7 |
| SN ntawm cov ntaub ntawv pob | 0 x 00
0 x9e |
Nws qhia txog tus naj npawb ntawm cov ntaub ntawv pob khoom. Nws yog tus nqi sib npaug, los ntawm 0 txog 46. Cov khoom tau txais tuaj yeem xa tus lej xa tuaj
hais kom ua kom lub sensor rov qab ntim cov ntaub ntawv SN tau teev tseg. |
| Kev them nyiaj raws li txoj cai | 0 x 00 | Lub byte qhia txog lub hnub ci them nyiaj. 0x00 txhais tau tias tsis muaj hnub ci them. 0x01 txhais tau tias lub hnub ci them nyiaj muaj. |
| CRC | 0 x 44 | CRC yog checksum byte. Nws yog ob qhov kawg me ntsis txog cov lej ntawm cov ntaub ntawv dhau los. |
| Xaus byte | 0 x 16 | Qhov kawg cim ntawm cov ntaub ntawv pob. Tus nqi ruaj khov yog 0x16 |
"CRC" yog ob qhov kawg ntawm cov lej ntawm cov ntaub ntawv dhau los.
Rau example, kev teeb tsa cov lus txib yog "‟ 0xAE 0xAE 0x00 0x00 0xAE 0x80 0x03 0x02 0x00 0x00 CRC 0x0D 0x0A" Cov lej ntawm cov ntaub ntawv ua ntej CS yog "0xAE+0xAE+0x00+0x00+0x0+ 80 x 0 = 03 x0f. CRC yog qhov tsawg ntawm cov lej. CRC = 02 x 0 F.
8.2 Downlink cov ntaub ntawv pob ntawv hom
Teeb lub sampLub sijhawm LS820
| taub hau | Ntaus ntawv ID | Xov tooj cua hom | Function code | Ntev ntawm payload | Cov ntaub ntawv payload | CRC | Xaus code |
| 1byte ib | 4byte ib | 1byte ib | 1byte ib | 1byte ib | Sampling lub sij hawm | 2byte ib | 1byte ib |
| 5E | 05E8 25 61 | C3 | A4 | Nn | 2byte ib | Kev kuaj xyuas | 16 |
Nyeem cov ntaub ntawv keeb kwm sensor
| taub hau | Ntaus ID | Xov tooj cua hom | Function code | ntev ntawm payload | Cov ntaub ntawv payload | CRC | Xaus code |
| 1byte ib | 4byte ib | 1byte ib | 1byte ib | 1byte ib | Pob ntawv No. | 2byte ib | 1byte ib |
| 5E | 05E8 25 61 | C2 | A6 | Nn | 2byte ib | Kev kuaj xyuas | 16 |
| APPCON WIRELESS TECHNOLOGY CO., LTD Ntxiv: 28 #, Longjin txoj kev, Xili cheeb tsam, Nanshan District Shenzhen PRC (518043) Xovtooj: +86-185 0309 2598 Tus Fax: + 86-755-83405160 Email: sales@appconwireless.com Web: http://www.appconwireless.com |
AppconWireless thev naus laus zis muaj txoj cai los kho, hloov kho, txhim kho thiab lwm yam kev hloov pauv rau nws cov khoom thiab cov kev pabcuam txhua lub sijhawm thiab txiav txhua yam khoom lossis kev pabcuam yam tsis muaj ntawv ceeb toom. Cov neeg siv khoom yuav tsum tuaj xyuas webcov chaw kom tau txais cov ntaub ntawv khoom tshiab tshaj plaws ua ntej muab xaj. Cov khoom no tsis yog tsim los siv rau hauv cov khoom siv txhawb nqa lub neej, cov khoom siv lossis lwm yam khoom siv uas ua haujlwm tsis zoo ntawm cov khoom no yuav ua rau tus kheej raug mob. Cov neeg siv khoom siv cov khoom no hauv cov ntawv thov no ua rau lawv tus kheej txaus ntshai thiab pom zoo kom them nyiaj rau AppconWireless thev naus laus zis rau txhua qhov kev puas tsuaj los ntawm kev siv tsis raug. |
Cov ntaub ntawv / Cov ntaub ntawv
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Appcon Wireless LS820 Sensor LoRaWAN Cov Ntaub Ntawv Logger [ua pdf] Phau ntawv qhia LS820 Sensor LoRaWAN Cov Ntaub Ntawv Logger, LS820, Sensor LoRaWAN Cov Ntaub Ntawv Logger, LoRaWAN Cov Ntaub Ntawv Logger, Cov Ntaub Ntawv Logger, Logger |