Follow mercenarymind on Twitter
Arduino
Simplified Motor Control Using A TIP120
Written by Administrator   
Wednesday, 11 May 2011 00:00


bildr.org writes:

Up until now, we have talked about working with a lot of low-power devices. Sensors, LEDs, ICs, and the like are all capable of being powered directly from your Arduino, but as many awesome 5 and 3.3v components as there are, eventually you will find yourself holding a 12v solenoid, motor, or light and wondering “How the heck am I supposed to control this from my Arduino?” Well today we are going to talk about doing just that from a magical device know as a transistor, specifically the TIP120 Darlington Transistor.

Read more: [Bildr.org]

Last Updated on Wednesday, 11 May 2011 00:50
 
Arduino laser detector with keypad
Written by Administrator   
Thursday, 05 May 2011 00:00


1324itouch writes:

This Arduino reads the photo cell and when it detects the voltage level is below a certain amount, the beam must be broken while sounding an alarm. The alarm stays on until you punch in the code you have set up to the keypad in. Once the correct code is typed in, the arduino turns of the buzzer and gives you 15 seconds ( or what ever you set the delay time to) to reset the laser beam. You are able to change the code if you like. The steps are very easy to follow and i hope everyone makes one!!!

Arduino laser detector with keypad –[Link]


Last Updated on Thursday, 05 May 2011 01:46
 
Arduino Controlled SIP PUFF Switch
Written by Administrator   
Thursday, 05 May 2011 00:00


kayakdiver writes:

This Instructable will fully detail how to construct a u-contoller based SIP&PUFF switch with the minimum and least expensive hardware I know of. I’ll present complete purchasing info and detail how to fabricate a few parts you may wish to make yourself.

Arduino Controlled SIP & PUFF Switch –[Link]

image
image

Last Updated on Thursday, 05 May 2011 01:49
 
POV Globe using arduino (atmega328P) and 72 SMD Leds
Written by Administrator   
Thursday, 05 May 2011 00:00


Arduino based POV globe capable of displaying monocolour bitmaps upto 72 pixels high and x width. (uses 72 LEDs, and one input to get rotation speed)

Arduino byte array for images are generated using the c# program included in this project

Image displayed is synch’d to speed of motor using a reed switch, this allows image to display around hole globe correctly, and maintain a constant position.

Code has been added to move the image slowly (so globe rotates nicely)

POV Globe using arduino (atmega328P) and 72 SMD Leds –[Link]

Last Updated on Thursday, 05 May 2011 01:14
 
Attiny2313 based LAN cable tester
Written by the machinegeek   
Wednesday, 04 May 2011 00:00

Authors: the machinegeek

Vasilis Stergiopoulos has built a RJ45 LAN cable tester. The circuit was originally designed to use a 555 and 4017 IC, but Vasilis has published the schematic and source code in assembly for using the Attiny2313 instead.

The Attiny2313 produces successive outputs at port D, where the LAN-cable is connected. If a straight cable is connected between connectors A and B, then the LEDs will glow in successive order. If a cross cable is connected, then the glow order will be as noted on the board, i.e. 1,2,7,4,5,8,3,6. If any other glow order occurs, it means that the cable is not wired correctly. If one or more LEDs don’t glow, then we have a corresponding open circuit. A remote unit with only the B connector (B2) can be used if both cable ends are not accessible in the same location.

Read more: http://dangerousprototypes.com/2011/01/15/attiny2313-based-lan-cable-tester/

Last Updated on Wednesday, 04 May 2011 13:28
 
<< Start < Prev 1 2 3 4 5 6 7 8 9 10 Next > End >>

Page 10 of 31