Muaj ntau dua thiab ntau dua ntawm kev sib txuas ntau yam khoom siv Bluetooth hauv lub neej niaj hnub. Hauv qab no yog cov lus qhia txog kev paub txog ntau yam kev sib txuas rau koj siv.
Kev sib txuas ntawm Bluetooth ib leeg
Bluetooth ib qho kev sib txuas, tseem hu ua point-to-point kev twb kev txuas, yog qhov feem ntau Bluetooth txuas scenario, xws li xov tooj ntawm tes <-> tsheb on-board Bluetooth. Zoo li feem ntau cov txheej txheem kev sib txuas lus, Bluetooth RF kev sib txuas lus kuj tau muab faib ua tus tswv / qhev, uas yog Master / qhev (tseem hu ua HCI Master / HCI qhev). Peb tuaj yeem nkag siab HCI Master li "RF Clock providers", thiab 2.4G wireless kev sib txuas lus ntawm Master / qhev nyob rau hauv huab cua yuav tsum yog raws li lub moos muab los ntawm Master.
Bluetooth ntau txoj kev sib txuas
Muaj ntau txoj hauv kev kom ua tiav Bluetooth ntau qhov kev sib txuas, thiab cov hauv qab no yog kev taw qhia rau 3.
1: Point-rau-Multi Point
Qhov xwm txheej no kuj muaj ntau heev (xws li lub tshuab luam ntawv BT826 module), qhov twg ib lub module tuaj yeem txuas mus txog 7 lub xov tooj ntawm tes (7 ACL txuas). Hauv Point to Multi Point scenario, Point device (BT826) xav tau hloov pauv ntawm HCI-Role mus rau HCI-Master. Tom qab ua tiav kev hloov pauv, Point ntaus ntawv muab lub moos Baseband RF rau lwm yam khoom siv Multi Point kom ntseeg tau tias lub moos yog qhov tshwj xeeb. Yog tias qhov hloov pauv tsis ua haujlwm, nws nkag mus rau Scatternet scenario (scenario b hauv daim duab hauv qab no)
2: Scatternet (c hauv daim duab saum toj no)
Yog hais tias qhov kev sib txuas ntawm ntau qhov xwm txheej yog qhov nyuaj, ntau cov nodes xav tau nyob rau hauv nruab nrab rau relay. Rau cov relay nodes, lawv yuav tsum tau ua hauj lwm raws li HCI Master / qhev (raws li qhia nyob rau hauv lub liab node nyob rau hauv daim duab saum toj no).
Hauv qhov xwm txheej Scatternet, vim muaj ntau HCI Masters, tej zaum yuav muaj ntau lub RF moos muab kev pabcuam, ua rau muaj kev sib txuas tsis ruaj khov thiab tsis muaj peev xwm tiv thaiv kev cuam tshuam.
Lus Cim: Hauv kev siv cov xwm txheej, qhov muaj nyob ntawm Scatternet yuav tsum zam kom ntau li ntau tau
BLE MESH
BLE Mesh tam sim no yog qhov kev daws teeb meem siv dav tshaj plaws hauv Bluetooth kev sib txuas (xws li hauv thaj chaw ntawm cov tsev ntse)
Kev sib txuas lus mesh tuaj yeem ua tiav kev sib txuas lus ntawm ntau lub nodes, uas yog txoj kev sib txuas sib txuas nrog ntau cov ntsiab lus tshwj xeeb uas tuaj yeem nug ncaj qha txog.
3: Kev pom zoo kev sib txuas ntau
Peb pom zoo kom muaj lub zog qis (BLE) 5.2 module uas txhawb nqa Class 1 Bluetooth modules. FSC-BT671C siv Silicon Labs EFR32BG21 chipset, suav nrog 32-ntsis 80 MHz ARM Cortex-M33 microcontroller uas tuaj yeem muab lub zog siab tshaj plaws ntawm 10dBm. Nws tuaj yeem siv rau Bluetooth Mesh daim ntawv thov kev sib tham thiab tau siv dav hauv cov teb xws li kev tswj teeb pom kev zoo thiab cov tshuab ntse hauv tsev.
Related cov khoom
FSC-BT671C nta:
- Tsis tshua muaj fais fab Bluetooth (BLE) 5.2
- Integrated MCU Bluetooth raws tu qauv pawg
- Chav Kawm 1 (lub zog hluav taws xob mus txog + 10dBm)
- Bluetooth BLE mesh sib txuas
- Lub neej ntawd UART baud tus nqi yog 115.2Kbps, uas tuaj yeem txhawb 1200bps rau 230.4Kbps
- UART, I2C, SPI, 12 ntsis ADC (1Msps) cov ntaub ntawv sib txuas
- Qhov loj me: 10mm * 11.9mm * 1.8mm
- Muab customized firmware
- Txhawb tshaj huab cua (OTA) firmware hloov tshiab
- Ua haujlwm kub: -40 ° C ~ 105 ° C
Ntsiab lus
Bluetooth kev sib txuas ntau tau nrawm nrawm ntawm kev yooj yim hauv lub neej. Kuv ntseeg tias yuav muaj ntau daim ntawv thov kev sib txuas ntawm Bluetooth hauv lub neej. Yog tias koj xav paub ntxiv, koj tuaj yeem tiv tauj pab pawg Feasycom!
