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14 Aug 2014

avr_atmega_pool_cleaner_robot_timer_02-600x450

Here’s a pool cleaner robot built on ATmega by Davide Gironi:

My replacement electronics it is based on ATmega8 micros.
The project is divided into two parts:

timer
cleaning robot

The timer contains the 220 AC to low voltage DC current, and it is out of water, his purpose is to start and stop the cleaning pool robot, which of course is inside the swimming pool.

[via]

ATmega based pool cleaner robot - [Link]

6 Jun 2014

3D_PCB_SMD_first

This project is a USB to Serial converter using an ATMEL AVR microcontroller. There are two version of the converter, one with SMD parts and another with TH parts. The mcu used is an ATmega8 and USB communication is done using software on AVR mcu. It’s based on the software USB implementation of AVR-CDC. Firmware can be downloaded from the download section of CDC-RS232.

USB to Serial Converter using AVR microcontroller - [Link]

22 May 2014

homemade_pickup_winder_02-600x450

A DIY guitar pickup winding machine built on ATmega8 by Davide Gironi:

A pickup winding machine it is used to wind a guitar pickup.
The core of this project is an ATmega8.
It features:
wind counter
slow startup
automatic stop
configurable motor speed
configurable winds
2 directions

This winder has an LCD display that will show
the current motor direction
the rotating speed of your pickup
the total and current wind counter

[via]

A pickup winding machine built on an ATmega8 - [Link]

16 Apr 2014

by digitalelectronicsandprograming.blogspot.gr:

This is a complete mobile MP3 player and first mp3-player with ATmega8 and Nokia 6100 color display.

An demo firmware and gerber file for board will be available soon.

This player has capability to play wav and mp3 files and view BMP files on 8 or 24 bits/pixel from a MicroSD card with maximum capacity 2GB, the format of the SD is FAT32 with clusters from 512 Bytes to 32768Bytes, the filesystem has no limits in number of directories and files.
For future i want to adapting the SD driver for SDHC because the filesystem is designed to use all capacity of fat32 ( 2TB in 512Bytes/sector)

List of features:
Play Wav and MP3 Files because the VS1011a only this files is capable to decode( but for future in this project i want to include the VS1053 chip to play more file formats.
View Bitmap files on 8Bit and 24 bit/pixel

This project is in asm language and my 100% own libraries

DiY: most tiny MP3 player with ATmega8 VS1011a and Nokia6100 Display - [Link]


14 Apr 2014
ATmega8

ATmega8

by zeptobars.ru:

Microchips – are indeed can be considered a black box – as long as it’s working you normally don’t look inside.
But what if you want to?

Today we’ll show how to “open” chips and what’s inside.

How to «open» microchip and what’s inside? - [Link]

7 Mar 2014

F8SPXSKHS8FUY0S.MEDIUM

Andrea Biffi build a nice vertical nixie clock using ATmega8 mcu. He writes:

After the success of my first nixie clock made out from a rosewood block, I decided to lose no time and to carry on with the next one.  As some of you guys already know, or imagine, lately I’m indeed a little bit addicted to nixie-mania. I’ve bought many nixie tubes on eBay, and I experienced in electronics so to build my own high voltage power supply and then the ultimate nixie clock circuit. Digits for this clock are nice rounded and fully transparent IN-4 tubes, the same I used in the first model, but as I previously announced, I aligned them vertically, so to read from top to bottom hours, minutes, and seconds. Indeed you will see the undeniable influence of Max Pierson’s vertical clock. I guide you now through the full process to make your own unique nixie clock.

Vintage style nixie wall clock - [Link]

19 Sep 2013

BRTZcM3CUAAif5P

Hemal Chevli blogged about his transistor tester project:

It has mega-8 as the brain, lcd to show specs of the transistor like which pin is which, what type of transistor it is eg NPN,PNP, N-MOSFET,P-MOSFET, etc., many components can be tested like different types of transistor, diodes, resistors etc, the good thing about this is that it also shows which leg is which, no need to open the data sheet

Transistor tester project - [Link]

13 Sep 2013

photo-3-600x450

Scott Harden writes:

In an effort to resume previous work [A, B, C, D] on developing a crystal oven for radio frequency transmitter / receiver stabilization purposes, the first step for me was to create a device to accurately measure and log temperature.  I did this with common, cheap components, and the output is saved to the computer (over 1,000 readings a second). Briefly, I use a LM335 precision temperature sensor ($0.70 on mouser) which outputs voltage with respect to temperature.

[via]

Precision temperature measurement - [Link]

23 Apr 2012

Hercules Trapierakis writes:

This is a copy paste tool of George’s Homemade Soldering Station  but with some improvements and not with a PIC but with an AVR ATMEGA8 uC. I have changed the way that the information is displayed also you can adjust the P I D values  and it has a safe mode option – that it will turn off the soldering iron if it is not used for a certain amount of time.

Here is an implementation of Pantelis

Homemade Soldering Station - [Link]

20 Apr 2012

This is a simple use of internal ADC of AVR atmega8. Voltage is measured directly with help of resistor divider and amperes is calculated based on the voltage drop in a low resistance power resistor.

Atmega8 based Volt – Ampere meter - [Link]



 
 
 

 

 

 

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