A professional 51 MCU test panel

Published:2011/4/26 3:51:00 Author:Ecco | Keyword: professional , MCU , test panel | From:SeekIC

Onboard buzzer and reset button can be used to do some sound tests. Board four button inputs can be selectable interrupt / query. All four ports are connected to P can be pre-10K pull-up resistor row. IIC bus is connected real-time clock device PCF8563. IIC bus is connected to EEPROM device 24C02, the features are similar to the Hengjian's products. 74LS244 onboard driver chips can be driven by non-simple P port directly, it has better protection to single chip. MAX232 chip board ahs standard RS-232-C serial interface and it can be used for online testing for PC.



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