AVR ATmega16/32/64 Development Board

Features:

• ISP, RS232, 5V Regulator, 8 Buttons, 8 LEDs
• Connectors for all parallel ports, I2C port
• Single sided board, easy to build it at home

     This low cost Development Board designed to use it with AVR Mega16 and Mega32 microcontrollers. It has connectors for parallel ports A, B, C and D and connectors for ISP and I2C bus. It also has RS232 serial interface, 5V voltage regulator, 8 LED and 8 buttons for connection to any port. It needs external power between 8V to 24V DC or 5V DC from USB connector.

     All connectors have 5V DC and GND line. The switches can give either logic 0 with pull up resistors or logic 1 with pull down resistors, depending on the connection of jumpers which are placed near the main connector. The resistors connected to port B are 240Ω and are necessary in order to avoid short-circuit with ISP if connected. The MCU can use its internal oscillator or external by mounting the desirable XTAL to a connector close to microcontroller (the capacitors are already installed).

     The microcontroller can be programmed by the ISP Port using the AVR ISP USB described in Project section. Additional can be programmed through the RS232 serial port of Development Board by adapting a simple programmer with a Tiny2313 (.hex file), as sawn in the pictures that presented. This programmer can be assembled in a prototype universal board.