[ESP32-Audio-Kit Audio Development Board Review] First Look at the Anxinke Audio Development Board
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ESP32-Audio-kit is a small audio development board that supports TF card, headphone output, two microphone inputs and two speaker outputs. It is convenient for developing music playback functions and recognizing and processing voice commands. Its appearance is shown in Figure 1, and the corresponding function distribution is shown in Figure 2.
Figure 1 Product appearance
Figure 2 Functional distribution
There are two USB ports on the left side of the development board, the upper one is for serial communication, and the lower one is only for power supply. After the development board is powered on, its operation effect is shown in Figure 3.
Figure 3 Power-on effect
If KEY3 is pressed, the red LED of D5 is lit, as shown in Figure 4.
Figure 4
When the upper USB port is used to connect to a computer, the virtual serial port can be seen in the device manager, as shown in Figure 5.
Figure 5 Virtual serial port
At this point, if you open the serial port assistant and set the baud rate to 115200bps, you can see the contents shown in Figures 6 and 7, which means that the functional test of the development board is correct.
Figure 6 Output content 1
Figure 7 Output content 2
Later we will build a corresponding development environment for the development board so that we can better test its performance and carry out corresponding function expansion and application design.
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