ES- JBM-141SPP Module. Application Note

Transcription

1 ES- JBM-141SPP Application Note ES- JBM-141SPP Module Application Note Version 1.0 1

2 1 Key Features Bluetooth Specification V2.0+EDR compliant JBM-141SPP:Class 2(<4dBm),10m link range UART interface with programmable baud rate GPIO control Support Uart transparent data communication with SPP Built-in 8Mbit flash memory 2 Applications Computer & peripheral Embedded systems Telemetry&Telematics Automobile, Home electronics Industrial applications Sensors Instrument & Meter Hand-held devices Transportation systems Cable replacement RS422/485 Network 3 Module Package Information 3.1 Pinout Diagram JBM-141SPP Module pin diagram is shown in the Figure 3.1 below ES- JBM-141SPP Application Note Bluetooth Module JBM-141SPP RoHS compliant 2

3 Figure 3.1: JBM-141SPP Module Pin Diagram 3.2 Pin Description The Pin description of JBM-141SPP is shown in the Table 3.1 below. ES- JBM-141SPP Application Note No Pin Name I/O Description 1 GND GND Ground 2 NC Not connected, For compliant class1 design, this pin is connected to 3v3 via 0 ohm resistant. 3 NC Not connected 4 AIO(0) A 5 AIO(1) A 6 RESET I low active reset, low level must be maintained 5ms 7 SPI_MISO - Debug port 8 SPI_CSB - Debug port 9 SPI_CLK - Debug port 10 SPI_MOSI - Debug port 11 UART_CTS I UART clear to send, active low 12 UART_TX O UART data output, active high 13 UART_RTS O UART require to send, active low 14 UART_RX I UART data input, active high 15 PIO10 I/O Programmable I/O 16 3V3 I Module supply voltage 17 GND GND Ground 18 PIO(11) I/O Programmable I/O 19 MFC I Multi function control 20 PCM_OUT O Synchronous data output 21 PCM_SYNC I/O Synchronous data sync 22 PCM_IN I Synchronous data input 23 PCM_CLK I/O Synchronous data clock 24 USB_DP I/O USB data positive 25 USB_DN I/O USB data negative 26 PIO(7) I/O Programmable I/O 27 PIO(6) I/O Programmable I/O 28 PIO(5) I/O Programmable I/O 29 PIO(4) I/O Programmable I/O 30 PIO (3) I/O Programmable I/O 31 PIO(2) I/O Programmable I/O 32 PIO(9) I/O Programmable I/O 33 PIO(8) I/O Programmable I/O 34 GND GND Ground 35 RF RF ANT 36 GND GND Ground 3

4 Table 3.1: Pin description List of abreviations: Analog (A), Input (I), Output (O), Ground (GND). Notes: Voltage level of input (I), output (O) and input/output (I/O) pins is 3.3 V. 4 Physical Layer Specifications The physical layer specifications are shown in the Table 4.1 below. No Item Specification 1 Operating Frequency 2400 MHz to MHz (In the ISM-Band) 2 Carrier Spacing 1.0 MHz 3 Channels 79 4 Duplexing TDD 5 Symbol Rate 1 Mbps 6 FHSS 1600 hops/s. 5 General Specifications Table 4.1: Physical layer specifications The general specifications are show in the Table 5.1 below. ES- JBM-141SPP Application Note No Item Specification 1 Supply voltage 3.3 V ± 0.1 V regulated voltage. (Noise < 10 mvp-p.) 2 Supply current Maximum current (peak): 60mA Average current : active 20 ma; idle 2mA 3 Frequency range 2400 MHz MHz. (ISM-Band) 4 Guard band 2 MHz < F < 3.5 MHz. (Europe, Japan, USA) 5 Carrier frequency 2402 MHz 2480 MHz. F = k MHz; k = Modulation method GFSK, 1 Mbps, 0.5 Gaussian 7 Hopping 1600 hops/s, 1 MHz channel space 8 Maximum data rate 3M 9 Receiving signal range -82 to -20 dbm. (Typical) 10 Receiver IF frequency 1.5 MHz. (Center frequency) 11 Transmission power Minimum: dbm Maximum dbm (Class 2 device with 6 power control levels) 12 External interfaces 10 GPIO(all voltage level is 0~3.3V) 13 Operation temperature (-20ºC to + 70 ºC) 14 Storage temperature (-40ºC to +85ºC) 15 Bluetooth specification version 2.0/2.1+EDR Table 5.1: General specifications 4

5 ES- JBM-141SPP Application Note 6 UART Interface JBM-141SPP Universal Asynchronous Receiver Transmitter (UART) interface provides a simple mechanism for communicating with other uart devices. Figure 6.1: Universal Asynchronous Receiver Four signals are used to implement the UART function, as shown in Figure 9.1. When JBM- 141SPP is connected to another uart device, UART_RX and UART_TX transfer data between the two devices. The remaining two signals, UART_CTS and UART_RTS, can be used to implement hardware flow control where both are active low indicators. All UART connections are implemented using CMOS technology and have signal levels of 0V and VDD. UART configuration parameters, such as Baud rate and packet format are set at factory. Table 6.1 shows a list of commonly used Baud rates Parameter Possible Values Baud Rate Minimum:1200 Baud ( 2%Error) Maximum:3MBaud ( 1%Error) Flow Control RTS/CTS or None Parity None, Odd or Even Number of Stop Bits 1 or 2 Bits per channel 8 Table 6.1: Possible UART Settings Standard baud rates supported(bps):1200,2400, 4800,9600,19200,38400,57600,76800,115200, ,460800,921600, , , NOTE:If the module is connected to RS232 interface, voltage level transfer IC must be used. 5

6 ES- JBM-141SPP Application Note 7 Application 7.1 Application block diagram Figure 7.1 shows application informations about JBM-141SPP 7.2 Schematics Figure 7.1: JBM-141SPP Application Block Diagram 6

7 7.3 LED STATUS This LED flashes rapidly when Bluetooth link loses or pairing. Once link is set up, the LED flashes slowly. Rapid blink = no link/discoverable/pairing(duty 100ms/333ms) Slow blink = connected(duty 100ms/2s) 8 Dimension ES- JBM-141SPP Application Note 9 Ordering Information Model Interface Baudrate Configurations JBM-141 UART Optional 10 Contact Information Singapore Head Office: Esmart Technology Pte Ltd. 17 Kallang Junction, #04-01, ESmart Centre, Singapore Tel: (65) ,Fax: (65) India Office: C-2086, Oberoi Garden Estate,Chandivali,Andheri (E), Mumbai INDIA. Tel : / 459 Fax: hluthra@e-smart.com.sg 7

8 ES- JBM-141SPP Application Note N O T E S ES-JBM-141SPP Application Information 8