RINO XY3721-B3C WiFi Bluetooth Module
Ulwazi Lomkhiqizo
Umkhiqizo Uphelileview
I-XY3721-B3C iyimojuli ye-Wi-Fi eshumekiwe enamandla aphansi eyakhiwe yi-Shenzhen Xiyun Technology Co., LTD. Ifakwe i-Bluetooth 5.2 kanye ne-Wi-Fi 802.11nA chips, ezingasebenza ngokuzimela noma njengesigqila kwamanye ama-MCU. Imojuli ingaqaliswa ngokuqondile ku-Flash eyakhelwe ngaphakathi uma ifakwe izinhlelo zokusebenza zangaphandle futhi iyona kuphela iphrosesa yohlelo lokusebenza kudivayisi. Isebenzisa amandla aphansi, imvamisa enkulu engu-160MHz, eyakhelwe ngaphakathi engu-288KB RAM, i-flash engu-2Mbyte, kanye nezinsiza ezitholakala endaweni ezungezile. Imojuli ye-XY3721-B3C Wi-Fi isekela iphrothokholi ejwayelekile ye-IEEE 802.11b/g/n, BLE5.2, kanye nesitaki sephrothokholi ye-TCP/IP engasindi. Iphinde isekele imodi ye-STA, AP, AP+STA, evumela abasebenzisi ukuthi bengeze amandla okuxhumana kumadivayisi akhona noma bakhe isilawuli senethiwekhi esihlukile.
Izici
- Isekela iphrothokholi evamile ye-802.11b/g/n/BLE5.2
- Isitaki sephrothokholi eyakhelwe ngaphakathi engasindi ye-TCP/IP
- Iswishi ye-TR eyakhelwe ngaphakathi, i-Balun, i-LNA, i-PA, kanye nothi oluhlanganisiwe lwangaphakathi (luhambisana nothi lwangaphandle)
- I-MCU kufika ku-160M imvamisa yewashi +288KB RAM
- I-Flash eyakhelwe ngaphakathi engu-2Mbit
- Isekela ukuthuthukiswa kwe-firmware ekude ye-OTA, engaqalwa nge-APP yeselula noma umyalo we-AT
- Isekela imodi yokusebenza ye-STAAPAP+STA
- Isekela iphrothokholi yezokuphepha ye-WEP/TKIP/WPA/WPA2
- Isekela iphrothokholi ye-802.11e ne-WMM/WMM PS
- Isekela umsebenzi wokuxhumana ohlakaniphile we-Smart Link
- Isekela i-HT20
- Isekela i-6-way hardware PWM
- Amandla okukhipha aphezulu angu-+16dBm kumodi ye-Wi-Fi 802.11b
- I-Bluetooth Max okukhipha amandla +6dBm
- Voltagububanzi obungu-2.7V~3.6VDC, 3.3V 500mA ukunikezwa kwamandla okukodwa kuyanconywa
- I-antenna engaphakathi, iyahambisana nezimpondo zangaphandle
imibuzo ejwayelekile ukubuzwa
- Q: Yini i-voltagUbubanzi bemojuli?
- A: Imojuli isekela ivolumutagububanzi be-2.7V ~ 3.6VDC. Kunconywa ukuthi usebenzise ugesi owodwa ongu-3.3V onesilinganiso samanje esingu-500mA.
- Q: Ngingakwazi ukusebenzisa uthi lwangaphandle ngemojula?
- A: Yebo, imojula iyahambisana nezinti zangaphandle. Uma ukhetha ukusebenzisa uthi lwangaphandle, ungaluxhuma embobeni yothi lwemojuli.
- Q: Yiziphi izindawo eziyinhloko zesicelo sale mojuli?
- A: Izindawo eziyinhloko ezisetshenziswayo zale mojula zifaka ukukhanya okuhlakaniphile, ikhaya elihlakaniphile, izinzwa ezihlakaniphile, ihhovisi elihlakaniphile, isango elihlakaniphile, kanye nomkhakha ohlakaniphile.
Umkhiqizo Uphelileview
I-XY3721-B3C iyimojuli ye-Wi-Fi eshumekiwe enamandla aphansi eyakhiwe yi-Shenzhen Xiyun Technology Co., LTD. Ifakwe i-Bluetooth 5.2 kanye ne-Wi-Fi 802.11nA chips, ezingasebenza ngokuzimela noma njengesigqila kwenye i-MCUS.
Uma imojuli ifakwe izinhlelo zokusebenza zangaphandle futhi kuwukuphela kwephrosesa yohlelo lokusebenza kudivayisi, ingaqaliswa ngokuqondile ku-Flash eyakhelwe ngaphakathi; futhi Iqukethe ukusetshenziswa kwamandla okuphansi, imvamisa enkulu engu-160MHz, eyakhelwe ngaphakathi engu-288KB RAM, i-flash engu-2Mbyte kanye nezinsiza ezicebile ze-peripheral.
Imojuli ye-XY3721-B3 ye-WiFi isekela i-IEEE 802.11b /g/n indinganiso yephrothokholi, i-BLE5.2, nesitaki seProtocol ye-TCP/IP engasindi, futhi isekela imodi ye-STA, AP, AP+STA. Abasebenzisi bangasebenzisa le mojula ukwengeza amandla enethiwekhi kumadivayisi akhona, noma bangakha isilawuli senethiwekhi esihlukile. Ukuhlinzeka amakhasimende ngezingxenyekazi zekhompuyutha eziphelele, uhlelo lwereferensi yesofthiwe, ukuze unciphise umjikelezo wokuthuthukisa umkhiqizo wakho, ukuze wonge ukutshalwa kwezindleko.
Izici
- Isekela iphrothokholi evamile ye-802.11b /g/n/BLE5.2
- Isitaki sephrothokholi eyakhelwe ngaphakathi engasindi ye-TCP/IP
- Iswishi ye-TR eyakhelwe ngaphakathi, i-Balun, i-LNA, i-PA, kanye nothi oluhlanganisiwe lwangaphakathi (luhambisana nothi lwangaphandle)
- I-MCU kufika ku-160M imvamisa yewashi +288KB RAM
- I-Flash eyakhelwe ngaphakathi engu-2Mbit
- Isekela i-firmware ekude yokuthuthukiswa kwe-OTA, engaqalwa yi-APP yeselula, umyalo we-AT
- Sekela imodi yokusebenza ye-STAAPAP+STA
- Sekela iphrothokholi yezokuphepha ye-WEP/TKIP/WPA/WPA2
- Sekela iphrothokholi ye-802.11e ne-WMM/WMM PS
- Sekela umsebenzi wokuxhumana ohlakaniphile we-Smart Link
- Sekela i-HT20
- Isekela i-6-way hardware PWM
- Amandla okukhipha aphezulu angu-+16dBm kumodi ye-Wi-Fi 802.11b
- I-Bluetooth Max okukhipha amandla +6dBm
- Voltagububanzi obungu-2.7V~3.6VDC, 3.3V 500mA ukunikezwa kwamandla okukodwa kuyanconywa
- I-antenna engaphakathi, iyahambisana nezimpondo zangaphandle
Izindawo zokufaka izicelo eziyinhloko
- Ukukhanyisa okuhlakaniphile
- Ikhaya elihlakaniphile
- Inzwa Ehlakaniphile
- Smart Office
- I-Smart Gateway
- I-Smart indus
I-Module Interface
Iphakheji ye-Dimensional
Imojula ye-XY3721-B3C Wi-Fi inemigqa emi-3 yamaphini, isamba esingu-22, futhi isikhala sephini singu-2mm.
XY3721-B3Wi-Fi usayizi wemojuli: 16
±0.35mm (W)×24±0.35mm (L) ×3.0±0.15mm(H), lapho ubukhulu be-PCB bungu-0.8mm± 0.1mm, iphakheji iboniswa kuMfanekiso 2.1:
Phina incazelo
Phina Inombolo Ye-serial / Uphawu / Uhlobo lwe-IO / Izici
|
1 |
I-RST |
I |
Iphinikhodi yokusetha kabusha izingxenyekazi zekhompyutha (iphansi esebenzayo), ehambisana ne-CEN ye-IC |
|
2 |
I-ADC |
I/O |
Imbobo ye-ADC, engasetshenziswa kabusha njenge
IO ejwayelekile, ehambelana ne-P28 ye-IC |
|
3 |
EN |
I |
Iphinikhodi yemojula, ukudonsa kwangaphakathi phezulu
ukucutshungulwa, okuhambisanayo nezinye i-docking design module |
|
4 |
P16 |
I/O |
Imbobo ye-I/O evamile, ehambisana ne-P16 ye-IC |
|
5 |
P26 |
I/O |
Imbobo ye-IO evamile, ingenza umshayeli we-LED ophumayo we-PWM, ohambisana ne-IC P26, PWM5 |
|
6 |
P24 |
I/O |
Ichweba elivamile le-IO, lingenza umshayeli we-LED PWM okukhiphayo, okuhambisana ne-IC P24, PWM4 |
| 7 | P6 | I/O | Imbobo ye-IO evamile, ingenza i-LED drive PWM |
| okukhiphayo, okuhambisana ne-IC P6, PWM0 | |||
|
8 |
VCC |
P |
Iphinikhodi yokunikeza amandla emojuli (inani elijwayelekile elingu-3.3V) |
| 9 | GND | P | Indawo yereferensi yamandla |
|
10 |
P9 |
I/O |
Ichweba elivamile le-IO, lingenza umshayeli we-LED PWM okukhiphayo, okuhambisana ne-IC P9, PWM3 |
|
11 |
TX2 |
I / 0 |
Imbobo ye-I/O evamile, elungiselelwe njengokuphuma kwe-UART_TXD2 yokususa iphutha ngokuzenzakalelayo,
ehambisana ne-P0 ye-IC |
|
12 |
CSN |
I/O |
Imbobo ye-I/O evamile, ehambisana ne-P21 ye-IC |
|
13 |
P8 |
I/O |
Imbobo ye-IO evamile, ingenza ukuphuma kwe-LED drive PWM, ehambisana ne-IC P8, PWM2 |
|
14 |
P7 |
I/O |
Imbobo ye-IO evamile, ingenza umshayeli we-LED ophumayo we-PWM, ohambisana ne-IC P7, PWM1 |
|
15 |
I-RXD |
I/O |
Imbobo yochungechunge ethola iphinikhodi engu-UART_RXD1, engasetshenziswa kabusha njengembobo ye-I/O evamile, ehambisana ne-P10 ye-IC |
|
16 |
I-TXD |
I/O |
Imbobo yochungechunge ethola iphinikhodi engu-UART_TXD1, engasetshenziswa kabusha njengembobo evamile ye-I/O, ehambisana ne-P11 ye-IC |
| 17 | P15 | I/O | Imbobo ye-IO evamile |
| 18 | P14 | I/O | Imbobo ye-IO evamile |
| 19 | P22 | I/O | Imbobo ye-IO evamile |
| 20 | P20 | I/O | Imbobo ye-I/O evamile - |
|
21 |
RX2 |
I/O |
Imbobo ye-I/O evamile. Inani elizenzakalelayo lingu-UART_RXD2, elihambisana ne-P1 ye-IC |
| 22 | P17 | I/O | Imbobo ye-IO evamile |
Incazelo: I-VCC imele i-power pin, i-I/O imele i-input/output pin, i-ADC imele i-analog input.
Imingcele kagesi
| Amapharamitha | Amanani ezinombolo |
| Imvamisa yokusebenza | Ibhendi ye-ISM engu-2.4GHz |
| Izindinganiso ezingenantambo | I-Wi-Fi 802.11n + BLE 5.2 |
| Uhlobo lwe-antenna | Ibhodi le-PCB antenna noma isixhumi esibonakalayo se-antenna ye-IPX |
| Izinga lokushisa lesitoreji | -55℃ ~ +125℃ |
| Ukunikezwa kwevoltage | Ukusuka ku-2.7 kuya ku-3.6 V |
| Electrostatic release voltage (mannequin) | I-TAMB-25℃ 4KV |
| Electrostatic release voltage (imodeli yomshini) | TAMB-25 ° C 0.2KV |
| I-vol esebenzayotage | 3.3 V |
| Izinga lokushisa lokusebenza | -40℃ ~ +85℃ |
Amandla okukhipha i-RF
| Amapharamitha | Inani elincane | Inani elijwayelekile | Inani eliphezulu | Amayunithi |
| Imvamisa yokusebenza i-Wi-Fi | 2412 | 2462 | MHz | |
| Imvamisa yokusebenza BLE | 2402 | 2480 | MHz | |
| I-impedance yokokufaka | 50 |
Ω |
I-RX ithola ukuzwela
| Amapharamitha | Inani elincane | Inani elijwayelekile | Inani eliphezulu | Amayunithi |
| Ukuzwela (802.11b@11Mbps,CCK) | – 88. | dBm | ||
| Ukuzwela (802.11g@54Mbps,OFDM) | – 75. | dBm | ||
| Ukuzwela (802.11n@HT20,MCS7) | – 72. | dBm | ||
| Ukuzwela (BLE@1M) | – 92. | dBm |
Dlulisa amandla
| Amapharamitha | Inani elincane | Inani elijwayelekile | Inani eliphezulu | Amayunithi |
| Okukhipha amandla (802.11b@11Mbps) |
17.19 |
dBm | ||
| Amandla okukhiphayo e-BLE (802.11g@54Mbps) | 16.89 | dBm | ||
| Amandla okukhipha (802.11n@HT20,MCS7) | 15.42 | dBm | ||
| Amandla okukhipha (BLE@1M) | 3.37 | dBm |
Ukusetshenziswa kwamandla
Idatha elandelayo yokusetshenziswa kwamandla iyidatha elinganiselwe ngaphansi kokunikezwa kwamandla okungu-3.3V
| Isimo sokusebenza | Imodi | Linganisa | Qalisa umsebenzi Izinga/ukwamukela | Isilinganiso | Iziqongo (amanani ajwayelekile) | Amayunithi |
| thumela |
802.11 b |
11Mbps |
I-16dBm |
81 |
270 |
mA |
| Yethula |
802.11 g |
54Mbps |
I-15dBm |
82 |
260 |
mA |
| Yethula |
802.11 n |
MCS7 |
I-14dBm |
85 |
253 |
mA |
| Ukwamukela |
802.11 b |
11Mbps |
Qhubeka nathi reception |
73 |
73 |
mA |
| Ukwamukela |
802.11 g |
54Mbps |
Qhubeka nathi reception |
75 |
75 |
mA |
| Ukwamukela |
802.11 n |
MCS7 |
Qhubeka nathi reception |
75 |
75 |
mA |
Ulwazi lwe-Antenna
Izinhlobo ze-Antenna
- Imojula ye-Bluetooth ye-XY3721-B3C isebenzisa uthi lwe-PCB esebhodini noma isixhumi esibonakalayo se-antenna ye-IPX
Yehlisa ukuphazamiseka kwezimpondo
- Ukuqinisekisa ukusebenza kwe-RF okuphelele, kunconywa ukugcina ibanga phakathi kwengxenye yothi lwemojuli nezinye izingxenye zensimbi okungenani libe ngu-15mm. Uma usebenzisa imvelo.
- I-antenna izungezwe izinto zensimbi, ezinciphisa kakhulu isignali engenantambo futhi ziwohloze ukusebenza kwe-RF. Njengoba imojuli ifakwe njenge-plug-in, Qaphela ukushiya isikhala esanele sendawo yothi.
Iphakheji yemojuli
Phezulu view:
Qaphela: Imojuli ezenzakalelayo yokubekezelela ubukhulu bangaphandle ngu-±0.35mm, ukubekezelela kobukhulu obuyinhloko ngu-±0.1mm
Iphedi eyindilinga emaphakathi kwesokunxele semojuli iphoyinti lokuhlola le-RF lemojuli, futhi le ngxenye yephedi ayiboniswa emtatsheni wezincwadi wephakheji.
Ncoma isithando somlilo
Sicela usebenzise isiqeshana se-SMT ngokwegrafu yokugeleza kabusha, izinga lokushisa eliphakeme lingu-245℃, futhi ijika lokushisa lokugeleza kabusha liboniswa esithombeni esingezansi: Bheka izinga le-IPC/JEDEC; Izinga Lokushisa Eliphakeme:<250 ° C; Inombolo Yezikhathi: ≤2 izikhathi
Isithasiselo
Isithasiselo: Umdwebo wohlelo
I-MOQ yemojuli enolwazi lokupakisha
| Inombolo Yemodeli Yomkhiqizo | I-MOQ (PCS) | Indlela yokupakisha yokuthumela | Inani lokupakishwa kokuthumela | Inani lamaroli okupakisha ngebhokisi ngalinye |
| XY3721-B3C | 3600 | Phatha ama-tape reels | 900 | 4 |
IZITATIMENDE ZE-FCC
8 Uhlu lwemithetho ye-FCC esebenzayo Ingxenye 15 Ingxenye Encane C 15.247 & 15.209
Izimo zokusebenzisa eziqondile
Imojula ingasetshenziselwa izinhlelo zokusebenza zeselula ezinothi oluphezulu lwe-2.54dBi. Umkhiqizi ofaka le mojula emkhiqizweni wakhe kufanele aqinisekise ukuthi umkhiqizo wokugcina owenziwe yi-FCC uthobelana nezidingo ze-FCC ngokuhlolwa kobuchwepheshe noma ukuhlolwa kwemithetho ye-FCC, okuhlanganisa nokusebenza komthumeli. Umkhiqizi womsingathi kufanele aqaphele ukuthi anganikezi ulwazi kumsebenzisi wokugcina mayelana nendlela yokufaka noma ukususa le mojula ye-RF kumanuwali yabasebenzisi yomkhiqizo wokugcina ohlanganisa le mojula. Imanuwali yomsebenzisi wokugcina izofaka yonke imininingwane edingekayo yokulawula / ukufudumeza njengoba kubonisiwe kule manuwali.
Izinqubo zemojula ezinomkhawulo. Akufaneleki.
Imojula iyimojula Eyodwa futhi ithobelana nemfuneko ye-FCC ingxenye 15.212.
Landelela imiklamo ye-antenna .Ayisebenzi.
Imojula njenge-antenna yayo, futhi ayidingi ibhodi le-sprinted board microstrip trace antenna njll.
Ukucatshangelwa kokuchayeka kwe-RF
Imojula kufanele ifakwe emshinini wokusingathwa ukuze kugcinwe okungenani u-20cm phakathi kwe-antenna nomzimba ” wabasebenzisi, futhi uma isitatimende sokuchayeka ku-RF noma isakhiwo semojula sishintshwa, khona-ke umenzi womkhiqizo ongumsingathi kudingeka athathe isibopho semojuli ngoshintsho. ku-ID ye-FCC noma kuhlelo lokusebenza olusha. I-ID ye-FCC yemojula ayikwazi ukusetshenziswa emkhiqizweni wokugcina Kulesi simo, umkhiqizi womsingathi uzoba nesibopho sokuhlola umkhiqizo wokugcina ( kuhlanganisa nomdluliseli ) kanye nokuthola ukugunyazwa kwe-FCC okuhlukile.
I-Antennas: Ukucaciswa kwe-antenna imi kanje:
- Uhlobo: I-PCB Antenna
- Zuza: 2.54dBi Max
Le divayisi ihloselwe abakhiqizi abasingathi kuphela ngaphansi kwezimo ezilandelayo:Imojula izosetshenziswa kuphela nezinti zangaphakathi ) ezihlolwe ekuqaleni futhi zaqinisekiswa ngale mojula. I-antenna kufanele inanyathiselwe unomphela noma isebenzise i-coupler ye-antenna eyingqayizivele .Inqobo nje uma izimo ezingenhla zihlangatshezwana, ukuhlolwa okwengeziwe kwesithumeli ngeke kudingeke Nokho, umkhiqizi womsingathi usenomthwalo wemfanelo wokuhlola umkhiqizo wakhe wokuphela ukuze athole noma yiziphi izimfuneko zokuthobela ezengeziwe ezidingekayo imojuli yakhe efakelwe i-example , ukukhishwa kwedivayisi yedijithali , izidingo ze-PC peripheral, njll :)
Ilebula nolwazi lokuhambisana
Abakhiqizi bomkhiqizo osokhaya badinga ukuhlinzeka ngelebula elingokoqobo noma le-e-mail ” Iqukethe i-FCC ID:2A9TO-XY3721-B3C nomkhiqizo wabo oqediwe.
Ulwazi lwamamodi kanye nezidingo zokuhlola ezengeziwe
Umsingathi we-Manacor u-ms pa orm s we-aiad & mission oced kanye nokukhishwa okungamanga kumamodi wokuhlola we-ac wesitendi - sodwa umsingathi we-modular transmiter, kanye namamojula amaningi we-silenus ramming noma amanye ama-transmitter emkhiqizweni osingethe. Kuphela uma yonke imiphumela yokuhlolwa yezindlela zokuhlola zithobelana nezimfuneko ze-FCC, khona-ke umkhiqizo wokugcina ungathengiswa ngokusemthethweni.
Ukuhlola okwengeziwe, Ingxenye 15 ingxenye B yomshwana wokuzihlangula. I-modular transmitter igunyazwe i-FCC kuphela ye-FCC Part 15 Subpart c 15.247 & 15. 209 nokuthi umkhiqizi womkhiqizo osingethe unesibopho sokuthobela noma yimiphi eminye imithetho ye-FCC esebenza kumsingathi ongakhaviwe yi-modular transmitter grant of cerification.
Uma onikezwayo amaketha umkhiqizo wakhe njengokuthobelana kwe-art 15 Subpart B lapho futhi iqukethe i-radiator yedijithali ye-radiator engahlosiwe, khona-ke onikezwayo uzohlinzeka ngesaziso esisho ukuthi umkhiqizo wokugcina wokuba usokhaya usadinga ukuhlolwa kokuthobelana kwe-art 15 Ingxenye Engaphansi B.
ISEXWAYISO: Noma yiziphi izinguquko noma ukuguqulwa okungagunyazwanga ngokucacile kungasusa igunya lomsebenzisi lokusebenzisa okokusebenza.
Noma yiziphi izinguquko noma ukuguqulwa okungagunyazwanga ngokucacile inhlangano enesibopho sokuthobela imithetho kungasusa igunya lomsebenzisi lokusebenzisa okokusebenza. Le divayisi ithobela Ingxenye 15 Yemithetho ye-FCC. Ukusebenza kungaphansi kwemibandela emibili elandelayo:
- lolu cingo kungenzeka lungabangeli ukuphazamiseka okuyingozi
- lolu cingo kufanele lwamukele noma yikuphi ukuphazamiseka okutholiwe, okuhlanganisa ukuphazamiseka okungase kubangele ukusebenza okungafuneki.
Qaphela: Lesi sixhobo sihloliwe futhi kwatholakala ukuthi sithobela imikhawulo ngokulandela Ingxenye 15 Yemithetho Ye-FCC. Le mikhawulo iklanyelwe ukuhlinzeka ngokuvikeleka okufanele ekuphazanyisweni okuyingozi ekufakweni kwendawo yokuhlala. Lesi sixhobo sikhiqiza, sisebenzise, futhi sikhanyisa amandla efrikhwensi yomsakazo, futhi uma singafakiwe futhi sisetshenziswa ngokuhambisana nemiyalelo, singadala ukuphazamiseka okuyingozi ezokuxhumana ngomsakazo. Nokho, asikho isiqinisekiso sokuthi ukuphazamiseka ngeke kwenzeke ekufakweni okuthile. Uma lesi sisetshenziswa sidala ukuphazamiseka okuyingozi emsakazweni noma kumabonakude, okunganqunywa ngokucisha nokuvula okokusebenza, umsebenzisi uyakhuthazwa ukuthi azame ukulungisa ukuphazamiseka ngesinyathelo esisodwa noma ngaphezulu kwezilandelayo:
- Hlela kabusha noma hambisa uthi olwamukelayo.
- Khulisa ukuhlukana phakathi kwesisetshenziswa nomamukeli.
- Xhuma okokusebenza endaweni yokuphuma kuyisekethe ehlukile kuleyo lapho umamukeli axhumeke khona.
- Xhumana nomthengisi noma uchwepheshe werediyo/TV onesipiliyoni ukuze uthole usizo.
Lokhu okokusebenza kuthobelana nemikhawulo yokuchayeka emisebeni ye-FCC ebekwe endaweni engalawuleki. Lo mshini kufanele ufakwe futhi usebenze ngebanga elincane elingama-20cm phakathi kwe-radiator nomzimba wakho. Lesi sithumeli akumele sibekwe endaweni eyodwa noma sisebenze ngokuhlangana nanoma iyiphi enye i-antenna noma isidluliseli.
Amadokhumenti / Izinsiza
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RINO XY3721-B3C WiFi Bluetooth Module [pdf] Umhlahlandlela Womsebenzisi 2-XY3721-B3C, 2A9TO2-XY3721-B3C, 2A9TO2XY3721B3C, XY3721-B3C, XY3721-B3C WiFi Bluetooth Module, WiFi Bluetooth Module, Bluetooth Module, Module |