Product User’s Manual – SHIELD-EZMP3
1.
MicroUSB socket
Allow connection between PC and shield and acts SD card reader.
2. Arduino R3 Standard header
Allow other Arduino shield to be stacked on top of this stackable header. Pin A2 acts as
BUSY signal pin by default. When the file is playing, the pin is at low logic level and
otherwise it is HIGH. User can choose to remove pin A2 as BUSY signal pin or change it to
other Arduino pin by following instructions at
3. Arduino Reset button
Reset button is for convenience of user to reset the Arduino main board.
4. UART Selector
Allow UART communication with selectable pins using mini jumpers. User may select D0,
D2, D8, D10 and D12 as the RX pin; D1, D3, D9, D11 and D13 as the TX pin from Arduino
main board.
5. ADKEY slot
Additional slot which allows user to carry out additional MP3 functions with proper hardware
connection.
6.
MicroSD card slot
Slot for microSD card which acts as file storage, maximum support up to 32GB.
7. Power LED
Power indicator LED for onboard MP3 module. The LED will turn on when 5V power is
supplied to the module.
8. BUSY Indicator LED
Busy
LED indicator for MP3 module. LED will turn on when the module is playing files.
9. Stereo Speaker Output
Allow connection to external speakers up to 3W rating.
10. Audio Jack Socket
Allow connection to earphone.
11.
Thumbdrive slot
Slot for thumbdrive card which acts as file storage, maximum support up to 32GB.
12. Push Buttons
Push buttons to play basic MP3 functions such as play, pause, next, previous, volume up and
down.
Created by Cytron Technologies Sdn. Bhd. – All Right Reserved
6
