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WCH BLE-SER, Manual

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WCH BLE-SER Manual Download Page 6

BLE-SER   

6 

http://wch.cn 

8. Reflow soldering conditions 

 

Moisture Sensitivity Level 

MSL3   

Average slope rise rate (TL to TP) 

Maximum 3

℃

/s   

During warm up 

 

Minimum temperature(Tsmin) 

150

℃

   

Maximum temperature(Tsmax) 

200

℃

   

Time (minimum 

–

maximum)(ts) 

60-180s 

Tsmax 

–

 TLslope rise rate 

Maximum 3

℃

/s   

During hold 

 

Temperature (TL) 

217

℃

 

Time (tL) 

60-150s 

Peak temperature (Tp) 

260+0/-5

℃

   

Time when actual peak temperature is within 5

℃

(tp) 

20-40s   

Slope descent rate 

Maximum 6

℃

/s   

Time from 25

℃

to peak temperature 

Maximum 8 min   

 

Summary of Contents for BLE-SER

Page 1: ...ide virtual serial driver can directly call Bluetooth interface through the serial port which is compatible with serial debug applications so it can communicate with UART with no secondary development required easily implementing the exemption of wire plugging and not being limited by cable distance BLE SER appearance Some application block diagrams of CH9140 Figure 1 Block diagram of serial commu...

Page 2: ...y hardware Transmission distance 100 meters Adjustable 8 positions of TX power Power off sleep current is 0 3uA Supports 3 3V and 2 5V operating voltages Asynchronous serial port default baud rate is 115200bps Serial port supports MODEM signals RTS and CTS Serial port supports odd even no parity space 0 and mark 1 Supports obtain the chip supply voltage parameters 3 Package size and pins of BLE SE...

Page 3: ... data transmission rate The module can run separately without extra ground plane but when it is installed on the other PCB it should be noted Antenna area must be far away from other metal components and the distance must be greater than 20mm Any conductor close to the antenna may seriously affect the antenna radiation pattern The figure below shows the reference layout of the module The first thr...

Page 4: ...ss again The difference is that the indicator LED in step 3 will flash quickly In this case the pairing can be re established by powering up the chip or module 6 2 Serial transparent transmission function A UART is used for serial transparent transmission The default setting is 115200bit s baud rate 8 data bits 1 stop bit no parity and enabled flow control The UART receive and transmit buffers of ...

Page 5: ...nection status 5 quickly flashes in connection status currently performing data transmission 6 quickly flashes in pairing process has been paired with other devices need power up again to complete pairing For details please refer to CH9140 datasheet 7 Schematic diagram for reference 3V3 GND 1K R2 D1 LED0 3V3 RXD_CONNECT_MCU_TXD TXD_CONNECT_MCU_RXD GND 2 3 1 S1 Select 3 for master slave mode Select...

Page 6: ...m up Minimum temperature Tsmin 150 Maximum temperature Tsmax 200 Time minimum maximum ts 60 180s Tsmax TLslope rise rate Maximum 3 s During hold Temperature TL 217 Time tL 60 150s Peak temperature Tp 260 0 5 Time when actual peak temperature is within 5 tp 20 40s Slope descent rate Maximum 6 s Time from 25 to peak temperature Maximum 8 min ...

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