Control mode: standard UART communication interface, support DMA and flow control, the default baud rate is 9600.
Built-in 0.5W Class D power amplifier.
An infrared remote control decoder
It is not played by default after power-on; with BUSY status indication, it is high level when BUSY is playing.
Support switching the audio output mode, the sample defaults to SPK output, if you need DAC output, please refer to the audio output switching instruction.
WT2003H4-24SS uses a high-performance 32-bit processor with a maximum frequency of 120MHz.
It has the characteristics of low cost, low power consumption, high reliability, and strong versatility. It can have a built-in voice capacity of 100 seconds\350 seconds. Flexible control mode: support standard asynchronous serial communication (UART).
Support SPI-Flash and U disk as storage. With file index play, interstitial play, single loop, all track loop, random play and other functions. The volume is adjustable in 32 levels, and the maximum can support external 128Mbit Flash and 32G U disk.
Pin Description
Figire 1 Pin Description of WT2003H4-24SS
Limited Parameters
Symbol
Parameter
Min
Max
Unit
Tamb
Ambient Temperature
-40
+85
°C
Tstg
Storage temperature
-65
+150
°C
VCC
Supply Voltage
-0.3
5.2
V
VVout33
3.3V IO Input Voltage
-0.3
3.6
V
Application Circuit
Figure 2 Schematic of WT003H4-24SS(MCU Part)Figure 3 External Flash CircuitFigure 4 TF Card CircuitFigure 5 Amplifier CircuitFigure 6 Upper and Lower Computer CommunicationFigure 7 Program Burning Interface
