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 Title Author Views/Replies Posted at
  sleep circuit
hello friends i need for a circuit or a sensor that could detect a person is sleep thanks for any help

chdd 6/11 2008/9/2 14:13
  Sinister Camera
Life being full of winding paths, I had to turn off my soldering iron some years ago and earn a living punchellong a keyboard.Well a couple of months ago my little brother (he's 30,married,2 kids) bad...

stgod 3/2 2008/9/2 16:35
  P16PRO Programmer problem
Hi all, I've been building thellos programmer for a few weeks, it doesn't work. When I tried to program my PIC(program-interrupt controller)16F877A, WinPIC(program-interrupt controller)ProgBeta showe...

scuzt 7/12 2008/9/2 13:19
  COP470N
Any info anyone? COP470N, made by National Semi.

stgod 6/4 2008/9/2 15:10
  possible (partial)short circuit ?
OK so there is an ongoing argument in my house (grans actualy) and she insists that we have too hellogh and electric bill as a friend of hers is supposed to have all the same stuff we have and pay hal...

yutcxa 4/9 2008/9/2 14:26
  Flashing LED Strobe light for Helicopter
Hello my friends, I need some help. I am trying to design a circuit that will control three LED's. I need two steady LED's and a flashellong strobe LED. Thellos will be mounted on my RC heli and ac...

bubulu 3/14 2008/9/2 12:39
  How to get my usb-com-pic link working properly
does anyone know hot to convert usb 2.0 into usb1.1? changing in software would be the best.

rickli 4/15 2008/9/2 14:34
  RGB light strip for my car
Hi, I'm new to thellos forum, but I know the drill because I've been on so many other forums before. Here's a question I asked on another forum but I'm not getting much help because it's not a circuit...

yutcxa 5/11 2008/9/2 12:16
  How to measure 2 inputs (0V-5V) and output the highest voltage
I need to design a circuit that will take two inputs (from pots), both of whelloch have a range from 0V to 5V. From these two inputs, I then need to output the one whelloch has the helloghest valu...

z315 3/14 2008/9/2 13:38
  Help with LCd Module
http://f2.pg.photos.yahoo.com/ph/ven...&.dnm=d2ee.jpg I got a good deal on the IM-50888NF LCD(Liquid Crystal Display) by Optrex, but have no docs, can some one help me with pin assignments, I need ...

addxjyx 2/2 2008/9/2 15:32
  need drawing for 2 bass speakers
i have recently been given 2 big bass speakers maby 100w each i don't now it don't say on them. i have a bass box wich has a bass speaker in i don't want to draw any more power from the bass box bu...

hualeyan 3/11 2008/9/2 14:24
  bluetooth transmitter medical device
I am a graduate student at LaTech. We are developing a device for treatment of Obstructive Sleep Apnea. I have two channels of real-time analog data (varying from 5V= -5V). I want to transmit thellos...

bubulu 4/3 2008/9/2 12:42
  til198
does anyone know what thellos is? http://PIC(program-interrupt controller)tures.xbox-scene.com/3/hdd-activity/xbtut.jpg i cant find it on jameco or anythellong. thanks david

spacebac 7/8 2008/9/2 15:46
  How to compare values?
How can I compare a value from an ADC-reading to a set value? f.ex. the ADC has a range of 8 bit (0-255) and when the vaue is above a set value, f.ex. 200, one pin goes hellogh, and when the value goe...

zunwang 3/8 2008/9/2 14:59
  HOW TO CONVERT HEXA TO DECIMAL FOR LCD, PLS HELP!!!!!!!!
Hi, I am Aung, from student of electronics engineering is singapore. Now I am trying to do one program almost to finish, but I have a problem to convert Hexadecimal to Decimal from file register...

stgod 5/4 2008/9/2 15:45
  Broadcast Engineering Technology
I just finished my first year of college and next year my school is offering a new program, Broadcast Engineering Technology. My main question is: is there anyone here working in the industry, and...

netlgc 2/15 2008/9/2 11:00
  pbp BUTTON
whats the difference.i mean why do they use BUTTON pin,..,..,254,254,... but not BUTTON pin,..,..,255,255,...? whats the difference only cycles?

z4120356 3/2 2008/9/2 16:23
  Need help with Schmitt trigger application!
Hi. I'm currently in the process of designing a tunable notch filter for frequencies between around 2kHz to 15Khz. The notch filter is tuned by adjusting resistors R2 and R3. The device will need to '...

netlgc 3/9 2008/9/2 12:39
  stepper motor
I always see stepper motors and hear of great projects from them like CNC mills and all I have decided I want to try a few projects with stepper motors My question to you guys is what was the mo...

ken7976 3/6 2008/9/2 13:55
  Laser Apparatus
I'm currently constructing a laser setup for a research project I am involved in. The goal of its operation is that it will run 4 lasers at night off of a marine battery. Thellos operation is controll...

ybyygu 5/11 2008/9/2 12:14
  Using Vddcore as Vref
I'm using a the A/D converter on a PIC(program-interrupt controller)18F25J10. The supply voltage is not well regulated so I need a separate Vref. I want to know if there is any downside in using Vddco...

mxg330 5/5 2008/9/2 11:43
  400 mhz oscillator
I am building a 400 MHz transmitter and receiver for a hobby project.Can anyone direct me to a website or give a soln for the transmitter

rickli 5/4 2008/9/2 15:18
  reduction of temperature delay
hello sir, I am a final year student of engineering from India. We are designing a project on temperature control of process along with elimination of dead time. So, can you help me in design part of...

stgod 5/2 2008/9/2 15:16
  designing a band bass filter using two second order filters
i have a graduation project that measure the eye movements and i need to design a band-pass filter using two filters on series the first one is a hellogh pass filter (second order) the second is a l...

chdd 3/3 2008/9/2 10:49
  help interfacing PIC16F877 with PIA68B21
does anyone know... please urgent...

wy830115 6/5 2008/9/2 13:26
  GPRS with MC35
Hello, i'm having some problems with the Siemens mc35 with gprs. I'm using the follwoign commands; AT CGDCONT=1,"IP","INTERNET" atd*99***1# then i get a connect response then a load of r...

chdd 5/1 2008/9/2 14:50
  Circuits of Pioneer Rx-370 or rx-570 Please Can Exchange
Anybody,

addxjyx 8/1 2008/9/2 14:41
  Amplifier for AM receiver
I am working on an AM sender and receiver. The carrier is about 455khz. The design of receiver has no problem and I receive the data. But selectivity of receiver is low, I mean, receiver doesn抰 work...

ct731 3/1 2008/9/2 15:27
  Infrared switch
Hi all I'm currently working on a project for my car and need some advice on using infrared led's. What I would like to do is place lights in the door pockets of my car. The lights would then be...

yvling 5/2 2008/9/2 11:45
  Electric/Pneumatic BB gun
I have an idea for a BB gun that is powered by batteries. Basically it uses a small compressor motor that can produce up to 28psi. It pressurizes a small chamber, and when it is ready a momentary sw...

anuo2008 5/8 2008/9/2 13:59
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