Heare is a Speed meater by BAXX an Arduino user. source: http://www.smartphone-time.com/2011/09/09/arduino-samp-speedmeter/ SAMP sends vehicle speed to a php script which a program on pc reads and echoes that data to COM port, so you can plug in this speed meter to a remote pc and monitor if your friend is speeding in samp. <-- This is computer softwere. ...

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Fading Demonstrates the use of the analogWrite() function in fading an LED off and on. AnalogWrite uses pulse width modulation (PWM), turning a digital pin on and off very quickly, to create a fading effect. The Circuit Connect the anode (the longer, positive leg) of your LED to digital output pin 9 on your Arduino through a 220-ohm resistor. Connect the cathode (the shorter, negative leg) directly to ground. /*  Fade  This example shows how to fade an LED on pin 9  using the analogWrite() function.  This example code is in the public domain.  */ int brightness = 0;    // how bright the LED is int fadeAmount = 5;    // how many points to...

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Tags: Arduino projects

LiquidCrystal - autoscroll The Liquid Crystal Library allows you to control LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually tell them by the 16-pin interface. This example sketch shows how to use the autoscroll() and noAutoscroll() methods to move all the text on the display left or right. autoscroll() moves all the text one space to the left each time a letter is added noAutoscroll() turns scrolling off This sketch prints the characters 0 to 9 with autoscroll off, then moves the cursor to the bottom right, turns autoscroll on, and prints them again. Hardware RequiredArduino Board LCD Screen (compatible with Hitachi HD44780 driver) 10k Potentiometer breadboard hook-up...

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Tags: Arduino projects

The Arduino Kitchen Timer is a simple timer based around a 10 bar LED Bar Graph, with a Piezo-Electric Buzzer. A line of 10 LED's could also be used, and each LED represents a segment of 5 mins. Once the Arduino is reset the user holds a pushbutton and the Bar Graph counts up in chunks of 5 mins, until the user lets go of the button. The timer then times 5 mins, and the last LED is turned off, etc until the timer is finished. The LED bar graph then shows a display, and a piezo buzzer sounds an alarm. The project is made by Ari Cooper Davis Make it: you will need: An Arduino Jumper Wires A momentary push button A 10 Bar LED Bar Graph or 10 Normal red Leds A Piezoelectric Buzzer A 10k resistor Now build the circuit And...

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Tags: Arduino projects

Parts Breadboard Atmega644 16MHz crystal momentary switch 4 x .1uF capacitor 2 x 22pF capacitor 10K resistor And some wire. Put the bread board down vertically. Row 1 at top, blue rail left, red rail right. Place the 644p into the bread board. Pin 1 into bread board hole 10D. Place the momentary switch's pins into bread board 1D, 1F, 3D, and 3F. Place the crystal into rows 31E and 33E Place a .1 uF cap from 9E to 9F. This is the reset on RTS cap. We'll be "building" a serial port on the left side, rows 4-9. Place a .1 uF cap from 18I to 19I. Decouple AREF from AGND. Place a .1 uF cap from 19I to 20I. Decouple AVCC from AGND. Yep, 19I, has 2 cap leads in it. It's a tight fit but can be done. Place a .1 uF cap from...

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Tags: Sanguino