51 MCU SCM Development Board Kit

- Color: Blue- Material: PCB- 8 LED emitters, 4 different colors- 8-digit seven-segment displays module with two 74hc573 data latches- EEPROM (24C02); I2C serial interface- DS1302 clock chipset, 32768HZ clock crystal oscillator, powered by 1 x CR2032 battery (included)- PCF8591 8-bit A/D and D/A converter chipset, provides 4-CH AD input and 1-CH DA output,- With 1 siren for sound play back- With 1 stepper motor interface, connect four-phase 5-wire stepper motor. controlled by ULN2003 driver- With 1 DC motor interface- With 1 high power relay (230V / 3A)- LCD1602 interface, allows connect to ST7920 and KS0108 LCD display module- 18B20 temperature sensor interface- High precision thermal thermistor, measuring temperature range via AD convert- Universal photoresistor; measuring light change via AD convert- 4 individual switches- 18 2-pin buttons- High sensitivity IR transmitter receiver module- With PS/2 interface- Replaceable crystal oscillator- 51 and AVR reset circuits, easy to switch-