With a single LED you can indicate the state of something: on or off. That might be a little boring. With an array of LEDs you can display characters or even some simple blocky graphics. That might add a little pizzaz to a small microcontroller project. You could use individual LEDs wired into a grid […]
How to use an LED Array Module using AVR Read More »
Inspired by various LED Throwies, blinking LEDs and similar instructables I wanted to do my version of an LED controlled by a microcontroller. The idea is to make the LED blinking sequence reprogrammable. This reprogramming can be done with light and shadow, e.g. you could use your flashlight. This is my first instructable, any comments
Programmable LED using Atmel ATtiny13v Microcontroller Read More »
The Digg Button from adafruit industries www.adafruit.com is a very simple DIY electronics kit suitable for beginners. It consists of a microprocessor, a 3-digit display, a button and some available i/o pins. As it comes from adafruit, it’s a counter that displays the number of times it’s button has been pressed. The open i/o lines
Hacking your Digg Button with a Removable Interface Cable using AVR Read More »
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
Getting started with VMUSIC2 Read More »
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
Jar of Fireflies using AVR ATTiny45 Microcontroller Read More »
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
I2C Bus for ATtiny and ATmega168 Read More »
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
16-key Keypad Decoding with an AVR MCU Read More »
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
Connecting Nokia 3310 LCD to USB using AVR Read More »
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
Repair dead AVR's – Attiny fusebit doctor (HVSP) Read More »
The reason i mainly built this project was to program the ATTiny45, which has a 8 pin connection, while my USBtinyISP (from Ladyada) only has a 10 pin and 6 pin connection. After snooping around the internet for about 3-4 weeks i found nothing what i really found was that i needed more stuff, so
ISP 6 pin to 8 Pin Socket Using ATTiny45 Read More »
