Design of Wireless Active Sound Box Based on BC03 Bluetooth Modules
YE Jian-chao · Modern Electronics Technique · 2011
The wireless communication system with bluetooth modules is discussed.BC03 bluetooth modules of CSR and TDA2030A OCL power amplifier are placed in sound box.The interconnection of bluetooth mobile telephone or PC with bluetooth modules,and the function of HFP and A2DP are realized by means of the communication and control between bluetooth modules accomplished by UART0 of SCM(single chip micyoco) C8051F020.The system adopts 4×5 keyboard to implement the input of data and audio frequency control instructions,which is displayed by TS1602 LCD.The experiment results show that the system can realize HFP and A2DP function of the bluetooth modules by interconnecting the bluetooth mobile telephone or PC with BC03 bluetooth modules.The maximum output power of audio frequency can reach 14 W(RL=4 Ω),and drive 4 Ω or 8 Ω load of sound box.