All posts in the 'DIY projects' Category
Posted on 31 Jan 2010
The fish feeding timer is based on a simple monostable 555 circuit and a relay to drive the load (the return pump in this case). The circuit is setup as simple monostable 555 multivibrator, a.k.a a one shot trigger or timer.The timing period can be adjusted by turning the potentiometer.[more]
Posted on 14 May 2009
This project combines a battery-operated doorbell, antique phone, Arduino, and subscriber line interface circuit (SLIC) to make a wireless doorbell. Readers are taken through basic phone restoration, creation of a custom doorbell button transmitter, modification of the receiver, workings of the SLIC, and description of the Arduino code.[more]
Posted on 13 Apr 2009
This is a cool project idea. When the the rain falling down the raindrop on the umbrella ย�samples play the music in a loop, each speaker playing their own unique raindrop. The LEDs light up the speaker playing at that moment. The tempo of the loop is controlled by a long-range Sharp Infrared range finder. The closer an object is to you, the faster the loop plays. If an object is close enough and a threshold is reached, a lightning sequence is triggered. [more]
Posted on 12 Apr 2009
If you are a photographer here is a very cool photography hardware called SPOT.It isย�a DIY wireless flash trigger and it is a cool open source project.The SPOT is a device that lets you adjust and trigger off-camera flashes remotely. It’s an essential tool for using artificial light.[more]
Posted on 31 Mar 2009
The project was designed just for the fun of making something unique, and out of the realization that nearly all name-brand computer speaker setups are sonically inferior.This projects start with choosing of the correct speaker drivers to use, how many, and in what configuration.[more]
