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Getting started with VMUSIC2

The VMUSIC2 is a complete MP3 player module from FTDI, Inc. which makes it easy to integrate MP3 functionality in to your next microcontroller project. It has two interfaces: SPI or UART (serial) Some example applications: 1. Make your robot talk and play sound effects based on some condition or trigger 2. Add sound to your models and dioramas; Provide some interactivity or history to your piece 3. Interact ...

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Jar of Fireflies using AVR ATTiny45 Microcontroller

This project uses green surface-mount LED's along with an AVR ATTiny45 microcontroller to simulate the behavior of fireflies in a jar. (note: the firefly behavior in this video has been greatly sped up in order to be easier to represent in a short film. The default behavior has significantly more variance in its brightness and delay between plays.) Step 1 About this Project The inspiration for this project ...

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I2C Bus for ATtiny and ATmega168

I love the Atmel AVR microcontrollers! Since building the Ghetto Development System described in this Instructable, I've had no end of fun experimenting with the AVR ATtiny2313 and the ATmega168 in particular. I even went so far as to write an Instructable on using switches as inputs, and extended the Ghetto Development System concept to CPLDs. During a recent project, I needed several switches for setting ...

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16-key Keypad Decoding with an AVR MCU

This instructable will show you how to interface a 16-key keypad to your AVR microcontroller and read the key when a key is pressed. I'll introduce the keypad first, then the 74HC922 16-key decoder IC as a pin-saving mechanism, then finally how to take the data and massage it so that you get the correct number for the keypress. A 16-key keypad can be a useful addition to any embedded project, possibly actin ...

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Connecting Nokia 3310 LCD to USB using AVR

What do you do with an old phone, a microcontroller and lots of time? You hook the old phone's LCD screen to the computer USB of course! In this project we're going to communicate with a Nokia 3310 LCD display over USB! How are we going to do that? We're going to connect the LCD display to an Atmel ATmega8 micocontroller and talk to it using the SPI, then connect the ATmega to a PC using V-USB. The Nokia 33 ...

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Repair dead AVR’s – Attiny fusebit doctor (HVSP)

Did you make a mistake while programming fusebits, or purposely disabled reset pin (RSTDISBL) or ISP programming (SPIEN)? No need to buy or make inconvenient HV programmer only for unlock couple of Tiny AVR’s. This Attiny fusebit HV doctor will cure your dead tiny microcontrollers, by restoring all fusebits to factory settings – nice and easy. Supports all of the serial high voltage interface AVRs, that is ...

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ATtiny programming with Arduino

After this Instructable you should be able to program an A Ttiny85/45 with an arduino. It may sound complex but it really isn't. After doing some research I could not find to much info on how this could be done. I however did find http://www.instructables.com/id/Program-an-ATtiny-with-Arduino/. This Instructable is my interpretation of what I learned from Randy. Step 1: Things you will need Arduino AT tiny ...

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