Follow these steps to get BM20 working out-of-the-box:
1
Connect your EVB to the computer through Micro-USB port.
2
Make sure the board is in ROM APP mode. Use the three-Switch configuration to put the module in ROM APP mode is: Switch 1: OFF Switch 2: OFF Switch 3: ON.
3
The slide switch should be in the 'OFF' position.
4
Connect the speaker to the SPK port. It uses a 3.5 mm jack.
5
Press the Reset button (RST_N) and it should light up the RED LED.
6
Press and hold MFB button (Btn0) until you see the RED and the BLUE light blink alternately.
7
On your mobile device, turn the Bluetooth® feature on and search for the devices. You will find 'BM20_EVB'.
8
Connect to the device and play music.
For more details refer to the "BM20 Bluetooth® Evaluation Board User’s Guide" available on the BM20 product page.