Thaum koj tuaj hla aBluetooth Module, Txawm hais tias koj yog tus saib xyuas cov khoom lag luam, tus kws tshaj lij lossis tus neeg txaus siab, koj tuaj yeem ntsuas seb nws puas tsim nyog rau koj cov phiaj xwm los ntawm cov hauv qab no qhov ntev. Qhov no zoo li xaiv tus khub "wireless txuas ntxiv" rau koj lub cuab yeej, uas yuav tsum muaj kev tshawb nrhiav.
Koj tuaj yeem faib cov kev ntsuas no ua peb hom loj:
1. Cov qeb ua haujlwm yooj yim (uas txiav txim seb nws tuaj yeem ua tau),
2. Kev kho vajtse interface chav kawm (uas txiav txim siab yuav ua li cas txuas nws),
3. Kev loj hlob thiab cov chav kawm ua haujlwm (uas txiav txim siab yuav ua li cas muaj teeb meem nws yog siv nws).
I. Cov kev ua tau zoo (kev txiav txim siab Module Capability)
Cov no yog cov "kev rov ua" ntawm cov qauv, uas qhia ncaj qha rau lawv cov peev txheej sib txuas lus.
1, Bluetooth Version
Dab tsi yog nws: xws li 4.2, 5.0, 5.1, 5.3, 5.4.
Vim li cas cov teeb meem: cov qauv tshiab feem ntau txhais tau tias kev noj hluav taws xob qis, nrawm dua, ntev dua thiab ntau dua.
Yuav Xaiv Li Cas
Blean 5.0 / 5.1: Tam sim no cov kev xaiv tseem ceeb rau Is Taws Nem ntawm yam khoom siv, nrog kev ua tau zoo siab.
Ble 5.2 / 5.3: Cov ntawv thov nrog cov yuav tsum muaj rau kev sib txuas ruaj khov, latency thiab kev ruaj ntseg.
Bluetooth 5.4: qhov tseeb ntawm cov ntsiab lus tshaj tawm nrog cov lus teb ua haujlwm, haum rau cov nqi nqe cim npe, khoom taug qab, thiab lwm yam.
Dual - Hom hom version: Yog tias nws yog ib qho tsim nyog los txhawb nqa ob qho kev sib kis tau zoo li qub, ib qho me me bluetoothingly, ib qho dual} hom module yuav tsum tau xaiv.
2, Raws li cov qauv thiab qauv
Dab tsi yog nws: tsawg {{{- fais fab bluetooth, classic Bluetooth lossis dual {hom Bluetooth.
Vim li cas tseem ceeb: Qhov no txiav txim siab cov "ua haujlwm xwm" ntawm cov qauv.
Yuav Xaiv Li Cas
Tsawg - fais fab bluetooth: Qhov kev xaiv ntawm feem ntau ntawm cov khoom siv iot, xws li sensors thiab cov khoom siv hnav tau, yog tus cwj pwm los ntawm kev siv tsawg heev.
Classic Bluetooth: Feem ntau yog siv rau cov suab streaming (cov neeg hais lus, lub mloog pob ntseg) thiab siab}} ceev cov ntaub ntawv kis.
Dual - hom Bluetooth: Nws muaj cov nuj nqis zoo, tab sis nws cov nqi thiab kev siv hluav taws xob yog tus siab.
3, kis nrug deb
Dab tsi yog nws: feem ntau ntsuas hauv meters, xws li 50 meters, 100 meters, 200 meters.
Vim li cas tseem ceeb: nws txiav txim siab cov kev sib txuas lus zoo ntawm cov khoom siv.
Nco tseg: Qhov kev ncua deb no feem ntau yog cov ntaub ntawv hauv qhov chaw qhib zoo tagnrho qhib. Hauv kev siv tiag tiag, muaj cov teeb meem xws li phab ntsa thiab tib neeg lub cev tuaj yeem ua rau qhov deb. Them sai sai rau nws qhov kis tau tus mob thiab tau txais kev rhiab. Qhov siab dua ob qhov tseem ceeb yog, qhov ntau dua theoretical deb.,
4, kis tus nqi
Dab tsi yog nws: chav tsev yog KBPS lossis MBPS.
Vim li cas tseem ceeb: nws txiav txim siab tias cov ntaub ntawv ntau npaum li cas tuaj yeem kis tau ib ob.
Yuav Xaiv Li Cas
Kis cov ntaub ntawv sensor (xws li qhov kub thiab av noo): ob peb kbps txaus.
Kis cov kwj ntws tawm: Yuav tsum tau ntau pua Kbps lossis ntau dua.
Hloov cov ntaub ntawv lossis siab -}} Zoo Suab: MBPS qib yog xav tau.
5, hluav taws xob noj
Nws yog dab tsi: feem ntau, cov nqi tam sim no raws li kev ua haujlwm sib txawv (~
Vim li cas tseem ceeb: Rau roj teeb -} powered cov cuab yeej (xws li wristerb thiab chaw taws teeb), qhov no yog ib qho kev txiav txim siab ncaj qha uas cuam tshuam rau lub roj teeb lub neej.
Yuav ua li cas saib nws: tsom rau ncov tam sim no thiab pw tam sim no.
Ii. Cov khoom kho vajtse thiab interface tsis yog (kev txiav txim siab yuav ua li cas sib xyaw)
Cov kev ntsuas no qhia koj yuav ua li cas "nruab" tus qauv no rau hauv koj cov khoom.
1, interface hom
Dab tsi yog nws: txoj kev lub cev uas ib tus module sib txuas lus nrog lub ntsiab tswj nti (xws li MCU).
Vim li cas cov teeb meem: nws txiav txim siab qhov nyuaj ntawm koj cov khoom tsim kho vajtse thiab txoj kev koj sib txuas lus.
Hom Hom Hom Hom
UAT: Feem ntau siv, yooj yim siv, nws paub tias "kev tsim tawm thiab cov neeg tsim khoom lag luam tsis tas yuav muaj kev nkag siab tob ntawm Bluetooth Stack.
USB: Nws feem ntau siv nyob rau hauv Bluetooth adapters lossis cov khoom siv uas xav tau siab {}} ceev cov ntaub ntawv hloov chaw.
SPI / I2C: Nws yog qhov tseem ceeb thiab yog siv rau kev sib txuas lus nrog sensors lossis lwm daim chips.
I2S: tshwj xeeb tsim rau kev xa cov ntaub ntawv suab.
2, kav hlau txais xov
Dab tsi yog nws: "pob ntseg" rau kev kis tus mob thiab txais tos.
Vim li cas tseem ceeb: Nws cuam tshuam cov teeb liab lub zog, deb thiab khoom tsos.
Hom Hom Hom Hom
PCB ntawm - board kav hlau txais xov: tus nqi qis, me me, tab sis luv nrug.
Ceramic Antennas: Me me thiab zoo dua hauv kev ua tau zoo rau ntawm - board kav hlau txais xov.
Cov kav hlau txais xov sab nraud Nws yog thawj qhov kev xaiv rau high-}} cov khoom kawg.
3, Ua haujlwm voltage thiab IO chaw nres nkoj theem
Dab tsi yog nws: xws li 3.3V, 1.8V rau 3.6V.
Vim li cas tseem ceeb: nws yuav tsum phim lub voltage ntawm koj lub ntsiab tswj McU; Txwv tsis pub, theem kev hloov dua tshiab Circuit Court yog qhov yuav tsum tau ua, nce kev ywj pheej thiab tus nqi.
4, qhov loj thiab ntim
Dab tsi yog nws: lub cev loj ntawm cov qauv thiab tus pin soldering txoj kev.
Vim li cas cov teeb meem: nws txiav txim siab ntau npaum li cas qhov chaw nws yuav siv rau koj lub tuam txhab PCB thiab cov txheej txheem ntau lawm.
Hom Hom: Qhov chaw sib txawv ntawm thaj tsam (SMD, cov hom phiaj xwm tshaj tawm (rau kev ruaj ntseg ntau (feem ntau siv nyob rau hauv cov chaw tsim khoom).
III. Kev loj hlob, ntawv pov thawj thiab cov tsis muaj kev ua haujlwm (kev txiav txim siab siv tau thiab ua raws li)
Cov kev ntsuas no cuam tshuam nrog qhov nyuaj, voj voog ntawm koj txoj kev txhim kho khoom thiab txawm tias nws tuaj yeem muag tau raug muag.
1, kev txhim kho software software
Dab tsi yog nws: software peev txheej muab los ntawm cov neeg muab khoom.
Vim li cas tseem ceeb: Nws txiav txim siab ncaj qha rau kev txhim kho kev txhim kho thiab kev nyuaj.
Mloog rau
SDK: software txhim kho cov khoom siv. Puas yog ua tiav thiab nkag siab yooj yim?
Ntawm kev qhia teeb tsa: Yog tias ntawm cov lus qhia siv, nws puas meej thiab ncaj?
Kev Txhawb Nqa: Cov khoom xa tuaj yeem muab cov kev pab txhawb cov kev pab cuam raws sijhawm?
2, ntawv pov thawj
Dab tsi yog nws: kev ua haujlwm lossis kev lag luam yuav tsum muaj ntawv pov thawj.
Vim li cas Tseem Ceeb: Nws yog "Pass" rau cov khoom yuav tsum tau tsim thiab muag ntawm kev ua lag luam.
Cov ntawv pov thawj tseem ceeb
BQB ntawv pov thawj: kev ua pov thawj los ntawm Bluetooth cov kev nyiam tshwj xeeb, nws yog lub hauv paus rau ua kom pom kev zoo. Siv cov qauv uas tau dhau cov ntawv pov thawj BQB, koj cov ntawv pov thawj cov khoom yuav tsum tau yooj yim dua.
Xov tooj cua Hom Xov Xwm Pom Zoo: Xws li FCC hauv Tebchaws Meskas, CE hauv European Union, thiab SRRC hauv Suav teb. Yog tias tus qauv tau dhau mus ua pov thawj no, nws tuaj yeem yooj yim yooj yim ntawm cov txheej txheem nkag mus rau hauv koj cov khoom.
3, kev ua haujlwm kub ntau yam
Dab tsi yog nws: xws li -40℃rau +85 degree.
Vim li cas Tseem Ceeb: Yog tias koj cov khoom yuav tsum tau siv nyob rau hauv ib puag ncig muaj kev lag luam, tsheb lossis sab nraud, koj yuav tsum xyuam xim rau qhov ntsuas no. Cov neeg tau txais kev pab -} qib ib txwm ua haujlwm ntawm qhov kub kub txij li -20℃rau {}}} degree.
