All posts in the 'Arduino projects' Category
Posted on 02 Jul 2008
If you are a fan of Arduino here is a nice project about how to interfacing data storage such SD card.This project posted in the Arduino ’s forum. There is also some sample code to get you up and running fast. [more]
Posted on 13 Jun 2008
This is a relatively simple approach to lightning photography using a trusty blueboard.
The circuit I used to detect the light from the lightning was a very simple circuit that looked like the above circuit diagram. I used a cheap infrared photo transistor because that’s what Radio Shack had. I noticed that the sun, my house lights, and lightning all pump out plenty of infrared light for this circuit to detect. If this circuit is not sensitive enough try changing the value of the resistor. Larger resistance values should help sensitivity when there is only a little infrared light and smaller resistance values should help sensitivity when there is a lot of infrared light.
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Posted on 04 Jun 2008
TheOther1 writes:I bought a Sharp GP2Y0A21YK0F Distance Sensor to use in my robot. It was very easy to see the data returned in a serial console window, but I thought it would be cool to see the distance in zones represented by colors from a tricolor LED. Then you would not need to be connected to the computer to tell distance…[more]
Posted on 18 May 2008
This is a cheap alternative to serial LCDs. This post is based in the work made previously by tomek in wiring LCD displays using 4 bits. The basic idea is to group the 7 pins that are needed to drive the LCD in only 3 using a shift register. [more]
Posted on 13 May 2008
This circuit can be used as an amplifier to switch on and off a DC motor and to regulate its spinning speed with a PWM source generator.[more]