1. Bluetooth modul Serial ọdụ ụgbọ mmiri
A na-abiri interface serial dị ka ọdụ ụgbọ mmiri, nke a makwaara dị ka interface nkwurịta okwu serial, nke a na-akpọkarịkwa ọdụ ụgbọ mmiri COM. Nke a bụ okwu n'ozuzu, na interfaces na-eji usoro nzikọrịta ozi na-akpọ serial ports. Ọdụ ụgbọ mmiri serial bụ interface ngwaike.
UART bụ mbiri maka Universal Asynchronous Receiver/ Transmitter, nke pụtara Universal Asynchronous Receiver/ Transmitter.
UART gụnyere ọdụ ụgbọ mmiri dị larịị TTL na ọdụ ụgbọ mmiri RS-232, yana ngwaọrụ abụọ na-eji nkwukọrịta UART kwesịrị ịgbaso ụkpụrụ UART.
2. Bluetooth modul UART protocol
Dị ka usoro protocol dị iche iche si dị, enwere ike kewaa ya gaa n'ụdị protocol abụọ: H4 (TX/RX/CTS/RTS/GND) na H5 (TX/RX/GND)
H4: Nzikọrịta ozi anaghị agụnye nnyefe ọzọ, yabụ CTS/RTS ga-ejirịrị. Nkwukọrịta UART dị na ọnọdụ "nfefe transperent", ya bụ, data a na-enyocha site na nyocha Logic bụ data nzikọrịta ozi Direction Head DataType Host -> Onye njikwa 0x01 HCI Command Host -> Onye njikwa 0x02 ACL Packet Host -> Onye njikwa 0x03 SCO Packet Controller -> Onye njikwa ihe omume 0x04 HCI -> Onye njikwa ngwugwu 0x02 ACL -> Onye ọbịa 0x03 SCO ngwugwu
H5: (nke a makwaara dị ka 3-waya), n'ihi nkwado maka mbugharị, CTS/RTS bụ nhọrọ. Ihe ngwugwu data nzikọrịta ozi H5 na-amalite ma kwụsị na 0xC0, ya bụ, 0xC0... payload 0xC0. Ọ bụrụ na ugwo ahụ nwere 0xC0, a na-atụgharị ya na 0xDB 0xDC; Ọ bụrụ na ugwo ahụ nwere 0xDB, a ga-atụgharị ya ka ọ bụrụ 0xDB 0xDD
3. Bluetooth modul Oghere Usoro ọdụ ụgbọ mmiri
Ọtụtụ modul Bluetooth HCI na-akwado ọnọdụ H5,
Obere akụkụ (dị ka BW101/BW104/BW151) na-akwado naanị ọnọdụ H4 (ya bụ, achọrọ CTS/RTS)
Ma H4 ma ọ bụ H5, n'oge mmalite Bluetooth, nchịkọta protocol na-ejikọta na modul na ọnụego baud nke 115200bps. Mgbe njikọ ahụ gachara, ọ na-awụlikwa elu na ọnụ ọgụgụ baud dị elu (>=921600bps). A na-ejikarị 921600/1M/1.5M/2M/3M
Rịba ama: Nhazi ọdụ ụgbọ mmiri H4 anaghị agụnye ntakịrị nlele; H5 na-ejikarị elele anya. Cheta ịtọọ usoro ahụ mgbe ị na-ejide ngwugwu data ọdụ ụgbọ mmiri na Logic analyzer.
4. Ikpe
Ntọala iri
FSC-DB004-BT826 jikọtara BT826 Bluetooth modul na DB004 pin interface board, na-akwado Bluetooth 4.2 dual mode protocol (BR/EDR/LE), jikọtara baseband njikwa, Cortex-M3 CPU, PCB antenna
- · Protocol: SPP, HID, GATT, wdg
- Ihe ngwugwu: 13 * 26.9 * 2mm
- · Ọkwa ike 1.5
- Ọnụego baud ọdụ ụgbọ mmiri nke ndabara: 115.2kbps Baud ọnụego nso: 1200bps ~ 921kbps
- Kwado nkwalite OTA
- BQB, MFI
- · Dabara na nkọwapụta ROHS
5. nchịkọta
Bluetooth Oghere Usoro nkwurịta okwu bụ nnọọ mfe na isi ihe ọmụma. N'ozuzu, mgbe ị na-emezigharị, gụọ nkọwapụta modul nke ọma, ma tinye uche n'ihe ụfọdụ mgbe ị na-eji ihe nyocha Logic. Ọ bụrụ na ị ghọtaghị ihe ọ bụla ọzọ, ị nwere ike ịkpọtụrụ Feasycom otu!
