1. module Bluetooth Serial port
Interface-ka taxan waxa loo soo gaabiyaa deked taxane ah, oo sidoo kale loo yaqaano interface isgaadhsiineed, guud ahaan sidoo kalena loo yaqaanno dekedda COM. Kani waa erey guud, interfaces-yada isticmaala isgaadhsiinta serial-ka waxa loo yaqaan serial ports. Deked taxane ah waa is dhexgal qalabeed.
UART waa soo gaabinta Universal Asynchronous Receiver/Guddiye, oo macneheedu yahay Qaadiyaasha Asynchronous Universal.
UART waxaa ku jira deked taxane ah oo TTL ah iyo RS-232 oo ah deked taxane ah, iyo labada aaladood ee isticmaalaya isgaarsiinta UART waxay u baahan yihiin inay u hoggaansamaan nidaamka UART.
2. Bluetooth module UART borotokoolka
Marka loo eego qaababka borotokoolka ee kala duwan, waxa loo sii kala qaybin karaa laba qaab oo borotokool ah: H4 (TX/RX/CTS/RTS/GND) iyo H5 (TX/RX/GND)
H4: Isgaarsiintu kuma jiraan dib u gudbinta, marka CTS/RTS waa in ay isticmaalaan. Isgaadhsiinta UART waxay ku jirtaa qaabka "gudbinta hufan", taas oo ah, xogta lagu kormeero falanqeeyaha macquulka ah waa xogta isgaarsiinta dhabta ah ee jihada Madaxa DataType Host -> Kontaroolaha 0x01 HCI Command Host -> Kormeeraha 0x02 ACL Baakidhka Host -> Kontaroolaha 0x03 SCO -> Martigeliyaha 0x04 HCI Xakamaynta Dhacdada -> Martigeliyaha 0x02 ACL Xidhmada Xidhmada -> Martigeliyaha 0x03 SCO
H5: (sidoo kale loo yaqaan 3-fire), taageerada dib u gudbinta awgeed, CTS/RTS waa ikhtiyaari. Xirmooyinka xogta isgaarsiinta H5 waxay ku bilowdaan kuna dhamaadaan 0xC0, taas oo ah, 0xC0... loadload 0xC0. Haddii culeysku ka kooban yahay 0xC0, waxaa loo beddelaa 0xDB 0xDC; Haddii culeysku ka kooban yahay 0xDB, waxaa loo beddelaa 0xDB 0xDD
3. Bluetooth module dekedda serial
Inta badan qalabka Bluetooth HCI waxay taageeraan qaabka H5,
Qayb yar (sida BW101/BW104/BW151) kaliya waxay taageertaa qaabka H4 (tusaale CTS/RTS ayaa loo baahan yahay)
Haddi ay ahaan lahayd H4 ama H5, inta lagu guda jiro bilowga Bluetooth, xidhmada borotokoolka waxa ay ku xidhaa moduleka xadiga baud ee 115200bps. Ka dib markii xiriirku guulaysto, wuxuu u boodaa heerka baud sare (>=921600bps). Inta badan la isticmaalo waa 921600/1M/1.5M/2M/3M
Fiiro gaar ah: Habaynta dekeda H4 ee taxanaha ah kuma jiraan waxoogaa hubin; H5 badanaa waxay isticmaashaa xitaa jeeg. Xusuusnow inaad dejiso qaabka marka aad qabsanayso baakadaha xogta dekedda ee taxane ah oo leh falanqeeye Logic.
4. Dacwad
Xeerarka aasaasiga ah
FSC-DB004-BT826 waxay isku daraysaa moduleka BT826 Bluetooth iyo DB004 pin interface board, waxay taageertaa Bluetooth 4.2 dual mode borotokool (BR/EDR/LE), wuxuu isku daraa kontoroolka saldhiga, Cortex-M3 CPU, anteenada PCB
- Protocol: SPP, HID, GATT, iwm
- · Cabbirka xirmada: 13 * 26.9 * 2mm
- Heerka awooda 1.5
- Sicirka baud ee dekeda taxan ee caadiga ah: 115.2kbps kala duwanaanshaha heerka Baud: 1200bps ~ 921kbps
- Taageero cusboonaysiinta OTA
- BQB, MFI
- U hoggaansan tilmaamaha ROHS
5. Summary
Isgaadhsiinta taxanaha ah ee Bluetooth waa aqoon aad u fudud oo aasaasi ah. Guud ahaan, markaad qaladka samaynayso, si taxadar leh u akhri qeexida cutubka, oo fiiro gaar ah u yeelo arrimaha qaarkood markaad isticmaalayso falanqeeyaha macquulka ah. Haddii aadan wax kale fahmin, waxaad la xiriiri kartaa kooxda Feasycom!
