Microcontroller based RF transmitter from Atmel

Atmel have released 8-bit microcontroller based RF transmitters aimed at transducer telemetry for 315Mhz and 433Mhz. Claimed to be the First Microcontroller-transmitter RF IC, the ATA6285/ATA6286 have provision for three sensors.

Published on Wed, 01 Nov 2006 00:59

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.

Published on Sat, 30 Sep 2006 23:10

Low cost USB interfaces for AVR microcontrollers

While there are many chips available for interfacing USB to microcontrollers, most of them involve some costs in both development and component count.

Two low cost alternatives to interfacing ATmega microcontrollers to USB are AVR-USB from Objective Development, and the range of USB interface chips from FTDI Chip.

(USB, FTDI, AVR-USB, FT245R, AVR, ATmega, ATtiny)

Published on Tue, 01 Aug 2006 22:03

Printed Circuit Board production for prototypes - Toner transfer method

Printed circuit boards using toner transfer method.

While there are many sites on the web describing the toner transfer method of circuit board manufacture, none of them worked exactly as I wanted. The following is the method I have perfected to suit my needs for one off prototyping. (PCB toner transfer method)


Published on Fri, 30 Jun 2006 23:24

USB based data acquisition module

Soon to be available, a small USB 1.0 based module with 8 channel analog inputs.

Interfacing to Windows, OS X, and Linux operating systems.

Expected price approximately $100 USD

(device ATmega88)

Published on Wed, 31 May 2006 22:52

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.

Published on Sun, 30 Apr 2006 14:52

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.

USB and USB OTG interfaces for AVR

Published on Mon, 13 Mar 2006 00:09

eZ430-F2013 Development tool

This looks like a unique development tool by Texas. Containing a development platform for an MSP430F2013 on what looks like a USB memory stick.

It is self contained, deriving its power from the USB bus, and has a removable target device board.

TI are offering it for $20 USD including software.

MSP430 development on a USB stick

Published on Mon, 27 Feb 2006 00:18

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.

Published on Thu, 26 Jan 2006 08:33

Notes on converting AVR IAR style code to AVR-GCC style code

The previous entry Notes on AVR interrupt grew to larger than expected, so now this entry covers other problem areas and their possible solutions. This included compiling a complete new toolchain. (device ATtiny13)

Published on Sun, 22 Jan 2006 00:58