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Not long after [CulinarilySpeaking] got into the Arduino game, he began to want more IO pins and a larger program space for more ambitious projects. This, of course, led him down the path towards the Sanguino, the ATMega644-based dev board with many more IO pins than Arduino boards based on the ATMega328. Instead of buying new, [CulinarilySpeaking] [...]

Tags:  sanguino arduino atmega dev-board ambitious-projects program-space hacks  

[Fezoj] likes to play around with microcontrollers and decided that he wanted to try a Bus Pirate as a new tool in his adventures. Since it’s open hardware he had his own board made and populated it himself. The trouble is, he works only with AVR chips and doesn’t have a PIC programmer. No problem, [...]

Tags:  program pic atmega pic-programmer atmega8 open-hardware microcontrollers  

This week, we are bringing you the final video in our series where [Jack] uses the 3pi robot as a fancy development board for the ATmega328p processor. Today’s video deals with interrupts. If you have been wanting to have your programs do more than one thing simultaneously, interrupts are the solution. [Jack] discusses various ways [...]

Tags:  video interrupts atmega jack video-deals video-interrupts robot news  

This week we continue on with another video in our series about how to program for the ATmega328p processor using C. The ATmega328p is at the heart of many Arduino boards. If you have been using them but want to add some more horsepower to your projects, this series of videos is for you. In [...]

Tags:  video series atmega c.-the pwm horsepower heart news  

Today we continue on with part 2 of our series where [Jack] shows how to program for the ATmega328p processor using the Pololu 3pi robot. In this video, he starts to dig deeper than last week’s video by showing you how to program in C so that you are directly reading inputs and directly sending [...]

Tags:  video program atmega jack pololu 3pi robot hacks  

The Arduino folks took advantage of Maker Faire New York to announce their new line of products. There’s several interesting new additions to their product line. They’ve got a WiFi shield in the works that utilizes a module from H&D Wireless in conjunction with an AVR32 processor to take the workload off of the ATmega [...]

Tags:  line arduino arm-based d-wireless new-york atmega new-additions workload hacks  

[Youchun Zhang] and [Annie (Wei) Dai] found a way to differentiate vowel sounds using an ATmega644 as their final project for a microcontroller design class. Voice recognition is not out of the ordinary, but most of the time it uses a computer, smart phone, or specially designed hardware. This implementation uses an ATmega644, a microphone [...]

Tags:  vowel recognition atmega dai annie vowel-recognition vowel-sounds microcontroller-design microcontrollers  

[Erik] wrote in letting us know that he just completed development of the Bobuino, a Arduino based on an ATmega1284. That chip is nice and beefy, most notably for having 16 KB of SRAM but it also boasts 4 KB of EEPROM, and 128 KB of program memory. But the upgraded chip isn’t the only [...]

Tags:  arduino bobuino atmega erik program-memory eeprom sram hacks  

Back in February, [ProtoStack] posted a pretty good tutorial on how to do Analogue to Digital Conversion on an Atmega168. Based on a bread board, the tutorial also shows the often forgotten low pass filter on the AVCC lines to ensure an extra stable reference and an analog input connection to a simple voltage divider [...]

Tags:  atmega analog tutorial simple-voltage-divider analogue-to-digital-conversion analog-input how-to  

While most Sumo-style robots are fairly sizable, there is a subsection of the Sumo robot movement that focuses on making small robots. Really small robots. [Patrick] wrote in to share his latest creation, a Nano Sumo robot measuring a scant 1 in. x 1 in. The Nano Sumo is operated by an ATMega 328 micro controller [...]

Tags:  robot subsection sumo-style patrick nano-sumo sumo-robot robot-movement atmega arduino hacks  

With more pixels and more objects to track you’re going to need to get that AVR running pretty fast to get the job done. But [Vladutz2000] figured why stop at 16 MHz when you can overclock an ATmega32 to 27 MHz for a faster gaming experience? This build may not be as colorful as Super [...]

Tags:  mhz gaming atmega gaming-experience job microcontrollers  

Most of the dice related hacks we run into have to do with pseudo random number generation, but today we saw something different. This sleek looking jumbo die is actually a prize holding box opened by a secret sequence of rotations. Using an accelerometer and an ATmega 328 with a sub-micro servo to control the [...]

Tags:  psuedo icey roll random-number-generation secret-sequence atmega toy hacks  

Those who are familiar with Atmel’s line of 8-bit AVR microcontrollers should already know that some of them have support for external RAM. But have you ever actually used this feature? We haven’t. Now you can learn how it’s done by reading through this guide. It touches on all of the hardware, but doesn’t dwell [...]

Tags:  external ram atmega external-ram atmega128 s-line microcontrollers  

If you’ve ever spent time working with AVR microcontrollers you’ve probably set the fuse bits incorrectly at least once. The ATmega fusebit doctor will automatically repair the fuse bits and get you back in business until your next mishap. The ATmega8 that powers the device has the chip signatures for the ATmega family stored inside [...]

Tags:  fuse avr atmega atmega8 microcontrollers mishap tool hacks  

Above is a new demo video called Phasor developed by [Lft]. It is run from an AVR ATmega88 and a few passive components, and the result is pretty amazing. [Lft] goes into detail about the tricks he used to get this up and running. The chip is clocked at 17.73447 MHz which is exactly four [...]

Tags:  phasor atmega demo v-pal lft passive-components classic hacks