This is my second AVR Test Board. It's designed with Cadsoft Eagle Layout and the board is professionally manufactured. Many parts are SMD. The Board has the following features:

• ATMEL AVR ATmega 64
• 16 MHz crystal
• Reset button
• 2 LEDs
• 4 input buttons, each with a red/green dual LED
• Piezo sound module
• Temperature sensor
• Light sensor
• 4×20 LCD display
• 4 DIP switches
• 1 UART with RS232 interface
• 1 UART with RS485 interface
• ISP connector
• JTAG connector
• Several debug and expansion headers