Product Description

Description:   BTM833 Bluetooth audio module, using CSR8633/DCM8633 chip, supports A2DP, AVRCP, HFP, AAC, etc., using 128K EEPROM memory chips. The module pin is intensive, need for better welder basis. CSR Bluetooth module audio is differential output, need to increase the OPAMP or AMP circuit to converted into a single-ended output (left channel, right channel, audio common). Board size: 28.75 x 13mm

Software Description:

Bluetooth Name: BT Speaker Key instructions as follows: PIN30 (MFB): high-level boot, low-level shutdown (module power up, PIN30 need be low-level, when power-up need a delay circuit , can not pull up, boot automatically into pairing mode) PIN1 (PIO6): power amplifier control enable pin (with audio output, output high level 1.8V) PIN2 (PIO8): Press to play / pause / answer / hang up, hold for 1 second to reject the incoming call PIN3 (PIO1): short press to choose previous, long press the volume down PIN4 (PIO0): Short press to choose next song, long press the volume plus   Special Features:   PIN2: Hold for 3 seconds to force into pairing mode, hold for 6 seconds to clear the pairing list PIN2 + PIN3: Hold for 1 second to enter searching TWS mode (only CSRA64110 / CSRA64210 / CSRA64215 Bluetooth series) PIN2 + PIN4: Hold for 1 second to enter the searched TWS mode (only CSRA64110 / CSRA64210 / CSRA64215 Bluetooth series) PIN3 + PIN4: Hold for 1 second to disconnect TWS (only CSRA64110 / CSRA64210 / CSRA64215 Bluetooth series)   Package included:   1 x BTM833 CSR8633 DCM8633 Stereo Bluetooth Audio Module