Forum: Hobby Electronics

Bryan first thought of the Joey in college. He noticed that a lot of his girl friends were having issues with their purses when they would go out at...

I am currently using 3 "Perimeter Mic's" connected to a pasive mixer connected to an small amp and it is working very well, but now i want to connect...

Hi all, I'm completely new to this forum, so I hope I am asking in the right area. I'm working on building a toy for my 3 year old boy. What I...

So I have this idea to create a battery-free module that plugs into my droid x's 3.5mm audio jack that has an IR LED and acts as a universal IR...

Woot! Pics and vid up later! Here's some pics of the touchscreen arduino. The code needs some serious optimization, however, as it's kind of buggy...

So I had the joy of missing my alarm because my phone died. I have a Driod v1, everytime I tried to charge it I got passed the Motorola log screen...

I want to buy myself a digital oscillopscope and a power supply. Unfortunately these don't come cheap, so I was wondering if anyone knew of any good...

TI released the MSP430 LaunchPad about a month ago which looks almost identical to the Arduino PCB. This sucker comes with quite a bit of...

http://www.et06.dk/atmega_timers/ You specify your clock frequency and a desired frequency and it will automatically show you what all the...

Right now I'm working on a project that will fully automate my apartment. I will be able to control this circuit either through bluetooth or through...

iRobot Create Programming I'm currently taking an Embedded Systems class at my university in which we get to program microcontrollers. In our...

reallllyyy new at this. just got my uno. heres my first project. simple press button to turn on the LED

Well my roommates constantly yell at me when I'm torrenting or downloading something as it kills the internet in the entire apartment. Today I...

Ladyada walks you through USB hacking with the xbox360 Kinect. It looks like a very interesting (yes I know quite long) article and highly applicable...

is this what i need? http://www.adafruit.com/index.php?main_page=product_info&products_id=68&zenid=9f8f26eaa5ec4f9ea662144269aed939 what other...

Hey, I'm looking for schematics for X10 power systems. I'm trying to build a simple powerline transmitter/receiver set with a few friends and can't...

I want to do some filming with a camera mounted atop an R/C car (thinking about filming friends doing free running) because of the low angle/high...

So for my next project I'm going to make one of these I'm going to follow this tutorial for the most part, but I'll make some minor...

Cellphone Triggered Fireworks With this tutorial you will be able to create cellphone triggered fireworks. Initially this was designed for a...

Well i thought it would be a good time to post this as its a little over 50% complete. i have a ton of images i have taken over the time of the...

This little project enabled me to toggle a 110V AC appliance on and off… Over the internet! Here is a little diagram that I created for novices to...

Today in one of my labs we had to create an ECG machine which is a way to detect your heart beat. We used 4 op-amps with this and used a 9V...

I'm sure you've all heard of piezo buzzers, the incredibly loud buzzers. When you apply a potential difference across a piezo buzzer, it will create...

So I don't know if I'm going to have time for this before I leave for vacation, but I might be able to get this done later tonight or tomorrow....