AVR Techniques
Sinusoid rotary position encoders - RPE3-8 and RPE3-635. 4-20mA output
Sinusoid releases 2 new rotary encoders - RPE3-8 and RPE3-635. Both have 4-20mA current output and a wide voltage supply range of 12-28V.AVR fuse programmer for OS X
For anyone who works with AVR 8 bit microcontrollers, the programming software used is an important part of the development process. Atmel provides AVR Studio 4, which operates on the Windows operating system, but does notAtmel CryptoRF
Atmel's CryptoRF devices use a ISO1443 based, 13.56Mhz radio system, a strong encryption to produce low cost embedded security devices to prevent theft, counterfeiting, and fake product reproduction.New AVR development tool - AVR Dragon
The Atmel ® Corporation this month released a new low cost development tool for AVR ® Microcontrollers - the AVR Dragon.
(AVR, Atmel, 8 bit Microcontrollers)
It supports In-System Programming, High Voltage Serial Programming, Parallel Programming, JTAG Programming.
While this is a welcome addition to the toolset available for development of AVR 8 bit microcontrollers, a couple of issues should be considered.
Audio line level switcher using ATmega32
This was a first attempt at making a solid state switching or multiplexing device for audio signals.
It uses 4051 chips for the actual multiplexing of signals, As such it can switch 2 banks of 8, or using th INH pin of the 4051, and connecting the inputs as common, 1 bank of 16 channels.
Atmel USB controllers AVR MCUs
AT90USB1286 and AT90USB646 have USB, and AT90USB1287 and AT90USB647 have USB OTG interfaces built-in to 8 bit AVR microcontrollers.
Socket for 8 pin SOIC AVR to suit STK500 programming board
Should an 8 pin AVR device in the SOIC package require programming other than ISP programming, it is necessary to connect directly to the STK500 board. This situation could arise due to accidental programming of various fuses.
Simple ATtiny13 Circuit
A two LED flasher is about as simple as it gets.
Note: Circuit and firmware now available
ATMega8 ADC resolution increase by oversampling
For applications requiring lower sampling rates but higher resolution, Atmel note AVR121 describes methods for oversampling and decimation. The sample application uses a ATMega16, but the code is easily adapted to an ATMega8.