SPK
SPK Introduction
In audio circuits, SPK stands for speaker and refers directly to the loudspeaker.
Preparation
- A Rhino Pi X1
- Dupont wires
- Power amplifier speaker
Connection
| No. | Board Silk Screen | GPIO/System Mapping | Description |
|---|---|---|---|
| 7 | SPK_P | SPK_P | Speaker differential positive output |
| 9 | SPK_N | SPK_N | Speaker differential negative output |
Connect SPK_P to the speaker amplifier positive terminal and SPK_N to the amplifier negative terminal.
Test
Android integrated system
After connecting the speaker amplifier, adjust the system volume. The speaker should output system audio.