TSA1010 is a digital stereo Bluetooth/Single-ended audio volume controller board. It has two 3.5mm audio jack and a BVC port. You can use it to control the audio volume of any normal amplifier board. The audio out signal will increase/decrease when a user rotates the knob and Bluetooth audio volume control port will also output an increase/decrease in the control signal. TSA1010 external volume control board Pins define: Port name Pin name Direction Description BVC Bluetooth volume control 5V - GND - INC Digital Out Bluetooth audio volume + DEC Digital Out Bluetooth audio volume - SEL Digital In Bluetooth/Single-ended select 1-Bluetooth, 0-Single-ended select Features: Size: 6.6cm x 3.8cm Bluetooth audio volume control Singal-ended audio volume control An external audio volume knob Working voltage: DC 8V-39V
