STC 8051 professional tools is a kind of high performance rich resources development board. The board of directors has many peripherals such as bitmap LED, color dot matrix LCD, SD slot, PS2 ports, stepping motor drive, dc motor, infrared sensors and temperature sensor. It reflects the single chip microcomputer STC full performance.
http://www.siliconray.com/stc-8051-professional-kit.html
On-board resources
● Default processor is STC12C5A60S2
● Crystal oscillator can be changed. There＇re 11.0592MHz、12MHz and 24MHz crystal oscillators supplied with the kit
● Eight LED
● PCF8591T four AD one DA chip
● One ISP programmer port
● ULN2003 Darlington transistors array can be used to drive buzzer, relay, DC Motor and stepper motor.
● USB Type B connector is used as power supply and program STC microcontroller.
● DB-9 Female connector is for RS-232 communication after programming STC microcontroller.
● DC power connector is for external supply and voltage is 7V -12V
● PS2 connector is for standard keyboard test
● Eight 7 -segment LED
● DS1302 RTC (Real time clock), battery power supply
● AT24C02 chip for data restore on power failure
● SD slot
● USB to UART bridge chip PL2303HX
● RS232 to TTL lever convertor chip SP3232EEN
● One buzzer
● One relay
● Infrared receiver
● 1602 character dot matrix LCD port
● 128x64 dot matrix LCD port
● 8x8 dot matrix LED
● 4x4 keyboard matrix
● Four stand alone keys
● Four channels AD signal: Potential meter, photo resistor, thermal resistor and external signal
● One DA output
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