Now hosted at MicrochipTech/avrfreaks-dn: Contains the original Design Notes from AVRFreaks (github.com)
#001 - Using STK500 to Program External Target STK300
#002 - Providing the Correct Input Voltage to the Atmega103L Part in the STK300 Board
#004 - Common User of the AVR Hardware UART
#005 - Using AVR Analog Voltage Reference (AREF)
#006 - AVR Memory Contents After Sleep and Reset
#008 - Efficient I/O Handling with Bitfields
#009 - Using the ATtiny15 High-speed Timer
#010 - Manual AVR ISP Firmware Upgrade
#011 - Manual JTAG ICE Firmware Upgrade
#012 - Writing the Calibration Byte to the OSCCAL Register in ImageCraft ICCtiny
#013 - Using ATmega8 Asynchronous Timer-Counter Oscillator with a 32 kHz X-tal on STK500
#014 - Flash Tables for AVRs without the LPM Instruction
#016 - How to Separate ATmega128 from ATmega103 from within Application code
#017 - Calibrating the Internal RC Oscillator Using the STK500
#018 - Calibrating the Internal RC Oscillator
#019 - Upgrading the Firmware on STK500
#020 - Understanding AVR Fuses and Lock bits
#021 - Using the Build-in ADC in AVR
#023 - Programming Problems Using STK200/300 Programmer
#025 - SPI Setup and Hold Times
#027 - A Simple FSK-modem, Frequence Measuring and Frequence Generation Technique
#028 - Using External SRAM with Small AVR Devices
#029 - Implementing FIFO Buffers in Software
#031 - Creating Non-blocking Timers in AVR
#034 - How to Declare I/O Pins to Ease Software Design and Maintenance
#035 - Using the SPI as High Speed, Bi-directional Data Bus with Automatic Master/Slave Switch
#036 - Virtual Instrumentation
#037 - Cusom Graphic LCD Characters
#038 - Fast Look-up Table Driven 16-bit CRC Routine for Atmel AVR Microcontrollers
#040 - Connecting an AVR Controller to CAN
#041 - Interfacing Parallel FRAM to AVR Microcontrollers
#042 - Efficient Handling of RS-485 Timing Issues
#043 - A String Display Routine
#044 - Using Trinary Encoding to Reduce Pin Wastage
#045 - Using Shift Registers to Increase the Number of Input/Output Pins
#046 - Timer Interrupt with a Maximum Accuracy
#047 - The Pin Adder. Uses Seven Pins to Add 64 or more.