1. Kōwae Nihokikorangi Tauranga Rangatū
Ko te atanga rangatū ka whakapotohia hei tauranga rangatū, e mohiotia ana ano he atanga korero rangatū, e kiia ana ko te tauranga COM. He kupu whanui tenei, a ko nga atanga e whakamahi ana i nga korero rangatū ka kiia ko nga tauranga rangatū. Ko te tauranga rangatū he atanga taputapu.
Ko te UART te whakapoto mo te Universal Asynchronous Receiver/Transmitter, te tikanga o te Universal Asynchronous Receiver/Transmitter.
Kei roto i te UART he tauranga rangatū taumata TTL me te tauranga rangatū taumata RS-232, a ko nga taputapu e rua e whakamahi ana i te whakawhitiwhiti UART me u ki te kawa UART.
2. Kawa UART kōwae Nihokikorangi
E ai ki nga whakatakotoranga kawa rereke, ka taea te wehewehea kia rua nga whakatakotoranga kawa: H4 (TX/RX/CTS/RTS/GND) me H5 (TX/RX/GND)
H4: Karekau he whakawhitinga korero, no reira me whakamahi e CTS/RTS. Ko te whakawhitiwhiti korero UART kei roto i te aratau "whakawhitinga marama", ara, ko nga raraunga e tirohia ana ma te Logic analyzer ko nga raraunga korero tuuturu Ahunga Upoko Raraunga Momo Kaihautu ->Kaiwhakahaere 0x01 HCI Kaihautu Whakahau ->Kaiwhakahaere 0x02 ACL Packet Host ->Kaiwhakahaere 0x03 SCO Packet Controller ->Kaihautū 0x04 HCI Kaiwhakahaere Takahanga ->Kaihautū 0x02 ACL Packet Kaiwhakahaere ->Kaihautū 0x03 SCO Packet
H5: (e mohiotia ana ko te 3-waea), na te tautoko mo te tuku ano, ko te CTS/RTS te whiriwhiri. Ka timata, ka mutu nga kete raraunga whakawhitiwhiti H5 ki te 0xC0, ara, 0xC0... utu utu 0xC0. Mena kei roto i te utu utu 0xC0, ka hurihia ki te 0xDB 0xDC; Mena kei roto i te utu utu 0xDB, ka hurihia ki te 0xDB 0xDD
3. tauranga rangatū kōwae Nihokikorangi
Ko te nuinga o nga waahanga Bluetooth HCI e tautoko ana i te aratau H5,
Ko tetahi waahanga iti (penei i te BW101/BW104/BW151) e tautoko ana i te aratau H4 anake (ara me CTS/RTS)
Ahakoa H4, H5 ranei, i te wa o te arawhiti Nihokikorangi, ka hono te kawa kawa ki te kōwae i te reiti baud o 115200bps. I muri i te angitu o te hononga, ka peke ki te reiti baud teitei (>=921600bps). Ko 921600/1M/1.5M/2M/3M te nuinga o te whakamahi
Tuhipoka: Ko te whirihoranga tauranga rangatū H4 karekau he moka taki; Ka whakamahia e H5 te arowhai. Kia maumahara ki te whakatakoto i te whakatakotoranga ina kapohia nga paatete raraunga tauranga rangatū me te Kaitirotiro Logic.
4. Take
Tautuhinga tautuhi
Ko te FSC-DB004-BT826 te whakauru i te BT826 Bluetooth module me te DB004 pin atanga poari, e tautoko ana i te Nihokikorangi 4.2 kawa aratau rua (BR / EDR / LE), te whakauru i te kaiwhakahaere turanga, Cortex-M3 CPU, PCB antenna
- · Kawa: SPP, HID, GATT, etc
- · Rahi mōkihi: 13 * 26.9 * 2mm
- · Taumata mana 1.5
- ·Taunoa tauranga rangatū auau baud: 115.2kbps awhe auau Baud: 1200bps~921kbps
- · Tautokohia te whakahoutanga OTA
- ·BQB, MFI
- · He rite ki nga whakaritenga ROHS
5. whakarāpopototanga
Ko te whakawhitiwhiti korero rangatū Nihokikorangi he tino maamaa me te maarama. Ko te tikanga, i te wa e patuiro ana, me ata panuihia te whakaritenga o te kōwae, me te aro ki etahi take ina whakamahi ana i te Logic analyzer. Mena kaore koe e mohio ki tetahi atu mea, ka taea e koe te whakapiri atu ki te roopu Feasycom!
