Search found 9 matches

by arealperson
Sun Nov 04, 2007 11:40 pm
Forum: General Discussion
Topic: Water Boil Detector
Replies: 55
Views: 9804

humidity sensor

Hi: For a low cost humidity sensor have you tried running a lead pencil over a piece of paper?
by arealperson
Sat Oct 06, 2007 12:43 am
Forum: Computer Programming
Topic: PIC, FPGA, and a notebook
Replies: 4
Views: 3862

Try a gameboy DS

What is wrong with just using a gameboy?
by arealperson
Sat Oct 06, 2007 12:19 am
Forum: Robotics
Topic: i know what i want,,but do not know what it is called
Replies: 8
Views: 5361

Sounds like overkill

Hi:

The motor & gearbox were made to drive around a 200lb person. Unless you plan on stepping on the mower as it is moving; 24 volts at 20 amps per motor sounds like over kill to me! You can bring down the cost by using relays.
by arealperson
Wed Mar 28, 2007 2:49 am
Forum: Robotics
Topic: Dual +3.3v/+5.0-6.0v Power Supply For Servos and IMU
Replies: 3
Views: 4369

Somewhere on your battery it should tell you how many amps hrs. it can supply. If you have a meter (you should if you are going to do any work in electronics) you can see what the servo draws under load. Most servos have very small motors, a good guess would be about 600 ma under load. So if your ba...
by arealperson
Wed Mar 28, 2007 1:56 am
Forum: Up For Grabs
Topic: Motor with gearbox and wheel
Replies: 2
Views: 2456

Motor with gearbox and wheel

I don't have any specs. on it. The wheel is about 3.5 in. I put 10 lbs on a base with the motors mounted; it moved the base fine; this was using 8 volts. The gear box I open had gears about 1/4 in. thick, so they should hold up pretty well.
by arealperson
Thu Mar 01, 2007 11:00 pm
Forum: Robotics
Topic: hobby servo with worm gearbox ?????
Replies: 9
Views: 8003

Re: hobby servo with worm gearbox ?????

Hi. Does anybody know where I can find a worm gear assembly that is suitable for hobby servos or a hobby servo that does not backtrack (rotate) when the power is removed? I have tried this on the servo I have. Turn the power off slowly (I have a power supply with large caps, so the voltage drops sl...
by arealperson
Wed Feb 28, 2007 11:32 pm
Forum: Robotics
Topic: hobby servo with worm gearbox ?????
Replies: 9
Views: 8003

Re: hobby servo with worm gearbox ?????

tolisn wrote:Hi.
Does anybody know where I can find a worm gear assembly that is suitable for hobby servos or a hobby servo that does not backtrack (rotate) when the power is removed?
I just listed a motor with gearbox that uses a worm gear in the gearbox but it would be 2 to 3 times the size of a servo
by arealperson
Wed Feb 28, 2007 11:14 pm
Forum: Up For Grabs
Topic: Motor with gearbox and wheel
Replies: 2
Views: 2456

Motor with gearbox and wheel

I have 2 motors with gearbox and wheels on the gearbox. The working voltage is from 6 to 12. The price for the 2 is $29.99 .
Image
by arealperson
Thu Jan 18, 2007 11:46 pm
Forum: Up For Grabs
Topic: New servos for sale
Replies: 0
Views: 1859

New servos for sale

Hi: I had to buy more servos then I needed to get a good price. I will sell 1 or 2. Price $29.00 each. I will mail them only in the U.S. Servo Specifications: Dimensions: 1.57" x 0.79" x 1.44" (40 x 20 x 36.5mm) Weight: 1.78oz (48g) Operating Speed (4.8V no load) : 0.17sec / 60 degrees Operating Spe...