A development board is a circuit board used for embedded system development, including

Central processor

Memory, input devices, output devices, data paths/buses, and external resources

A series of hardware components such as source interfaces. Development board - generally developed by embedded system developers based on

Users can customize their own requirements or research and design them by themselves. The development board is for beginners to understand and

Learn the hardware and software of the system, as well as the basic integrated development environment provided by some development boards

And software source code and hardware schematics. Common development boards include 51, ARM, FPGA

DSP development board. In addition to integrating CPU, FPGA, DSP, etc., the hair board also needs to compare

Improve input and output interfaces, such as keyboard and LCD, program download interface, memory (RAM

）, FIashROM, power module, etc.

Text introduction to development board functions:

basic function

Design highlights Features:

1 STC8 series 48 pin STC8H8K64U

9 SPI TF card holder (high-end mini version)

2. All I0 are exported

10 Buzzer (ultra small patch passive)

3 on-board 5v-3.3v LDO step-down circuit

11 485 communication function (industrial dedicated communication)

4 Fused overcurrent protection circuit

12 232 serial communication circuit (conventional communication)

5 USB-TTL CH340 download chip

13 USB 2.0 function USB slave interface

Support USB to serial computer communication

USB direct download is also supported

6 Two independent mechanical keys

14 - capacitive touch buttons

7 22.1184MHz chip 5032 high-precision external main frequency crystal oscillator 15 W25X16 2M external FLASH memory chip

8 2 LED I0 controls -1 red -1 green

16 AT24C02 external EEPROM memory chip

Extension interface

A NRF24L01 2.4g wireless module interface

B ESP 8266 WIFI module interface

C Bluetooth 4.0 module interface

D VS1053 music module interface

E W5500 Network Module Interface