Showing posts with label attiny. Show all posts
Showing posts with label attiny. Show all posts

Wednesday, December 2, 2015

123DCircuits and Digispark for Easy Cheap Projects





I have been working with ATTINY chips for some time. When I saw the low cost Digispark that has one on board, I had have 1.

 I have developed this project that utilizes the ease of programming with 123D Circuits and the cost of digispark. It is very similar to the standalone ATTINY circuits posted several years ago but has been simplified, to make it easier to program and easier to manufacture. Check out the instructions bellow.

PCB manufacturing tutorial

123D Tutorial 1
123D Tutorial 2
123D Tutorial 3
123D Tutorial 4

123D Arduino project
123D ATTINY without Digispark

Software install - new version
software install - old version

Chinese Digisparks
Real Digispark

Sunday, January 15, 2012

Programing the ATTINY 45/85 & 44/84 and building a Attiny 4LED display


I have been working with Arduino for several years now. The biggest problem I have had is the cost of take home projects for students. The Arduino boards themselves are inexpensive but building simple circuits with the AtMega 328 is not. I stumbled across the High-Low Tech page and was very interested in their Attiny programming. I went through the several post on the subject and compiled them in to a written tutorial that students can follow to program an ATTINY 45/85 or 44/84.  Not all the technical data is there, but the steps for programming are.

In the last post I went over bread boarding a 4 LED display using an Arduino. This activity now correlates to a simple 4 led display. You will find attached the Fritzing file for the ATINY 45 display as well as Fritzing diagrams for programming both the ATTINY 45/85 and 44/84

Note: I this procedure only works with the Arduino Duemilanove board. If there are any corrections that will make it work with an uno board please not them in the comments.

Note if using the UNO board and Arduino 0022 or 0023 use This for step 1 in the tutorial 




Programming Instructions

Fritzing 45-85

Fritzing 44-84 Updated!

Fritzing 4 LED display 

Inkscape 4 LED Silk screen 

Working display code

Trouble shooting:

If you can not get your codes to upload with Arduino 0022 or 0023 with an uno board try the fix at http://www.sirmc.net/view/2002/

If you are using nano arduino you can check out the soultion at http://jedahan.com/2012/01/15/arduino-code.html , Thanks Jonathan!