This 8051 Microcontroller Board has DIP 40 Pin ZIF (Zero Insertion Force) Socket For Easy Insert/Remove of IC.ZIF Socket Protect Your Microcontroller From Damage.8051 Microcontroller Board comes With Atmel AT89S52 Microcontroller ic & RS232 chip | Borad can Support AT89S51, AT89S52, P89V51RD2, 8052 etc. 40-Pin DIP Chip | High quality FR-4(1.6 mm) PCB
On-board RS232 Circuit for Easy Communication with a PC & other RS232 serial devices (GPS modules, GSM Modems, RFID etc) | Extra Vcc bus (5V and 12V) & GND bus for POWER Supply to the External Peripheral
On-board bridge rectifier so 8051 Development board can accept both AC & DC Input voltages Power suppluy | 5mm Power Plug-in DC Jack | Power ON – OFF switch | 5V regulator (LM7805) circuit | Power indication RED LED
OnBoard Reset button | Quartz Crystal 11.05892 MHz | GREEN USER LED at Pin P2.0 | Input User Switch Pin P3.3 | Input External Interrupt Switch (INT1) at P3.3 through jumper JP2