BM20 BLUETOOTH
EVALUTATION BOARD USER
’S GUIDE
Preliminary Edition
2015 Microchip Technology Inc.
page 9
TABLE 1-1:BM20 EVALUATION BOARD HARDWARE
Hardware Component
Description
BM20
Bluetooth
®
4.1 Module
USB Connector
DC 5V input, USB to UART for EEPROM R/W
BAT connector & Jack
JP20 and JP19 , alternative for BAT_IN
Audio Out
Audio 3.5 mm jack for audio playback(P6).
External AMP daughter board connector (JP26).
On Board external CDA output connector (J3/4).
Audio In
Audio 3.5 mm jack for Mono microphone input(P5) and AUX input(P7)
Status LEDs
Red and Blue LEDs show the pairing/connection status
MFB Button
Switch to turn on/off BM20 module (SW7; Button 0 in UI)
Play/Pause Button
Button to play or pause the audio playback (SW8; Button1 in UI)
Previous Track Button
Button to skip track backwards (SW4; Button 5 in UI)
Next Track Button
Button to skip track forwards(SW5; Button 4 in UI)
Volume Up Button
Button to increase volume (SW9; Button 2 in UI)
Volume Down Button
Button to decrease volume (SW10; Button 3 in UI)
Reset Button
Reset system (SW11)
NFC Tag Connector
NFC Tag connector.(For NFC tag without Rectifier Circuit)(JP3)
MP Tool Interface
Interfaces connect to VICTORIA board when use MP Tool
