Search found 15 matches

by Lucille
Fri Mar 10, 2017 2:23 pm
Forum: Introduction
Topic: Hello from CO
Replies: 0
Views: 1677

Hello from CO

Hey everyone! Civil Engineer, EIT from Philadelphia, living in Denver. Did AFROTC in college and paying back uncle sam serving as a Civil Engineering Officer and doing construction on base. Took my PE early in Illinois a few weeks ago and anxiously awaiting the results. Separating at the end of 2017...
by Lucille
Wed Mar 08, 2017 11:20 am
Forum: Mechatronics Projects
Topic: Another request for help.
Replies: 0
Views: 1451

Another request for help.

I would like to build a robot from ground up. What programming language should I use? Would assembly language be the best language to use? If so, could anyone suggest the best assembler and loader to use with the assembly language that they proposed? Thank you. Your suggestion would be of great help...
by Lucille
Wed Mar 08, 2017 11:19 am
Forum: Mechatronics Projects
Topic: Help Required For Tachometer Circuit...
Replies: 0
Views: 1252

Help Required For Tachometer Circuit...

Hi, I am trying to build a tachometer using IR Sensors.. I get good response at lower frequencies but as the frequency increases say to 170Hz it looses the wave.. i am using a hysteresis resistor of 1M at positive feedback and input is at inverting terminal of op-amp should i use hysteresis resistor...
by Lucille
Wed Mar 08, 2017 11:16 am
Forum: Mechatronics Projects
Topic: Cordless drill motor
Replies: 0
Views: 1329

Cordless drill motor

Hi there, I want to use 4 cordless drill motors to power a mobile robot, but I need some assistance determining the thread size of the motor axis. The motor is from a B&D cordless drill and when the chuck is removed, a thread is revealed. This is almost a standard thread on all cordless drills, but ...
by Lucille
Wed Mar 08, 2017 11:14 am
Forum: Mechatronics Projects
Topic: HT9200
Replies: 0
Views: 1381

HT9200

HI.

I was trying to interface the DTMF generator (HT9200) to tel line.
I was able to hear the tones, but it's not dialing them!?!?!?!

Any idea? Any circuit ?? :(
I'm using an isolation transformer !!
by Lucille
Wed Mar 08, 2017 11:12 am
Forum: Mechatronics Projects
Topic: Basics behind IR pair circuit for a line follower robot
Replies: 0
Views: 1379

Basics behind IR pair circuit for a line follower robot

iam interested to know about the theory behind the working of IR pair circuit used in line follower robot. i just always copy the circuit diagram from somewhere and interface it with micro-controller. but i want to know the working of circuit.
anyone give me any references??
by Lucille
Wed Mar 08, 2017 11:11 am
Forum: Mechatronics Projects
Topic: how to use hard disk spindle motors
Replies: 0
Views: 1407

how to use hard disk spindle motors

hi every one i m need to use hard disk spindle motor for my proj bcos it gives constant high rpm like 5400 or 7200rpm. i have some dumb harddisk. pls tell me how to run them. is it possible to use normal power transisotr to drive those motors. samsung harddisk motor comes with 4 wires and seagate ha...
by Lucille
Wed Mar 08, 2017 11:09 am
Forum: Mechatronics Projects
Topic: Wifi tracking stage light
Replies: 0
Views: 1461

Wifi tracking stage light

Hi All: I am considering a project which purports to use RFID wifi transmission data to track a person on a stage for a smart stage light (DMX) to auto track. I am not clear on how to access the position data from the wifi transmisssion. Also, I need to figure out the DMX protocol to instruct the li...
by Lucille
Wed Mar 08, 2017 11:08 am
Forum: Mechatronics Projects
Topic: Questions in Control Theory (pole placement, stability, Kalman's Criterion)
Replies: 0
Views: 1494

Questions in Control Theory (pole placement, stability, Kalman's Criterion)

Hi everyone ! Currently, I am studying Control Theory and I believe it is a fascinating field ! I still have a lot to learn ! Anyway, I have a question to ask because I am not very sure. I have just learned about Pole Placement. I know the key is to find a gain K in order to meet my specifications a...
by Lucille
Wed Mar 08, 2017 11:06 am
Forum: Mechatronics Projects
Topic: Holding pressure/variable torque
Replies: 0
Views: 1261

Holding pressure/variable torque

Hello! It's been ages since I posted here. Glad to still see some familiar faces active! Anyway, I am looking for something and thought maybe the automation/robotics crowd here might have some ideas. Basically what I am looking to do is power an axis on an old machine tool that has been modified to ...