IAP15W4K58S4 Development Board Racing Board Minimum System ENC28J60 NRF24L01 ESP8266 SCM Development Board

IAP15W4K58S4 Development Board Racing Board Minimum System ENC28J60 NRF24L01 ESP8266 SCM Development Board

Feature:
1. The board applies STC15W series SCM , 46pcs I/O (8 pcs more than the DIP40 ), all the I/O are led out and the 2. Input voltage is DC5V, Can get power from USB or phone charger/ charge pal. The onboard AMS1117-3.3V power chip, Vcc can select 5V or 3.3 V by jumper selection.
2. Onboard TL431 2.5V power, can be used for more accurate AD experiment.
3. Onboard 16,000,000 bit SPI flash chip (W25Q16), can be used to store data, pictures, font etc..
4. Onboard contains 2channels RS232 interface (SP3232), 1channel RS485 interface (MAX485).
5. Onboard PCF8563T clock chip, the output signal and the frequency signal can be set by the program.
6. Board contains NTC thermistor / photosensitive resistor, infrared emitting diode, infrared receiver, buzzer, etc.
7. The plate loads 1channel AQY212EH optocoupler bidirectional relay output, as the stem nodes or switch output, isolation drive less than 60V500mA load as the control of the PLC I / O.
8. The display interface can connect externally the 1.8 Inch TFT, 1602 display and 0.96 inch OLED, (and plans to import the touch screen).
9. The board loads WiFi ESP8266 serial port module interface can be achieved through the WiFi and mobile phones and computers based on the TCP protocol to communicate (to provide routines).
10. The board loads ENC28J60 Ethernet module interface and NRF24L01 2.4G wireless module interface.
11. The board contains SIM900A short message and GPRS module, which can be used to send text, or access to the Internet through GPRS.
12. The development board size is 7*7.5 cm, the design is unique, the idea is exquisite, all aspects are practical
13. the use of filtering and protection circuit design of commercial products, the principle may be directly used for reference.
14. the use of SMT chip processing, quality assurance, the appearance is more beautiful
15. IAP15W4K58S4 , the model includes RAM 4K, ROM 58K, 4 high-speed serial port, USB download program, support DC2.5~5.5V wide voltage, 6 PWM and other characteristics.

Description of STC15W4K56S4 series SCM:
- Large capacity 4096 byte on-chip RAM data memory.
- High speed: 1 clock / machine cycle,  core 8051, faster than the traditional 8051. Speed is also faster than the 1T STC series microcontroller (such as the STC12/11/10 Series) as fast as 20%.
- Voltage: 2.5~5.5V.
- Low power: low speed mode, idle mode, power down mode (which can be awakened by external interrupt or internal power wake up).
- External reset of the microcontroller is no need, ISP programming 16 reset threshold voltage optional, built-in high reliable reset circuit.
- No need for an external crystal of SCM, ISP programming internal clock from the 5MHz~35MHz can equipment of high precision R / C clock (+ 0.3%), which is equivalent to the ordinary 8051:60~420MHz.
- 16/32/40/48/56/61K Flash bytes of on-chip program memory, erasing times more than 100000 times.
- large capacity EEPROM function, endurance more than 100000 times.
- ISP/IAP, can be programmable without programmer or emulator.
- ADC with high speed , 10 channels and 8bit, the speed can reach 300 thousand times / second, 8channels PWM can also be used as 8 channels D/A.
- Comparator, which can be used as 1channel ADC, and can be used as power down detection, support external CMP+ pin CMP- and external pin to compare, can generate interrupt, also supports external tube feet + and internal reference voltage.
- 6 channels 15bits wiht dedicated and high-precision PWM (with dead time control), plus 2channels CCP, can be used to achieve D/A.
- Totally 7 timer / counter, 16 of which 5 bit to reload timer / counter.
- Programmable clock output function (clock input for the internal system clock or external clock input).
- ultra high-speed four serial /UART, four fully independent high-speed asynchronous serial communication port, the switch can be divided into 9 groups of serial port use.
- SPI high speed synchronous serial communication port.
- Hardware watchdog (WDT).
- Instruction set architecture first, compatible with the common 8051 instruction set, there are hardware multiplication / division instructions.
-  I / O port. After resetting: quasi bidirectional / weak pull ups and can be set for four kinds of modes: quasi bidirectional / weak on tension and strong push-pull / strong pull, only as output high resistance, open drain, each I / O drive capability up to 20mA, but not of the entire chip more than 20mA.
- Provide the baud rate calculator, timer, calculator software delay calculator and a large number of examples of V program in ISP software

Package Included:
- 1 x IAP15W4K58S4 Board
- 1 x Serial port cable 430USB to RS232
- 1 x Power supply cable