Let's Make Robots!

Questions on RF links and VirtualWire

Hi guys 

First of all I want to say this threat have nothing to do with robotics. Instead its about using some Arduinos to make a weather station. I've seen some of you are using RF links and VirtualWire in your projects so I hope you can help me anyway! :-) 

Sending serial data once during a rotation (routine) of the MPU6050 sensor.

Hello LMRians. How's everyone doing?

I have been fiddling around with an MPU-6050 and Arduino. Basically, a current idea is to flip in between Power-Point Slides based on the direction of rotation of the sensor. In short:

Complete Novice

Hello everyone. I am really interested in robots and I used lego mindstorms once but I want to upgrade to a new league. Im in high school and i need someone to help me. Any ideas on how I could start? Please reply soob thanks

Change of plans: from 2d mapping to biped.

A while ago I was happily planning to build a robot that was able to map it's environment, but quite soon I realised that 2d mapping is part of a bigger picture. A robot that is only aware of where it is not a goal in itself, especially if it's an autonomous robot. I tried to find a purpose for such a robot for quite a while, but I couldn't think of anything without getting way over my head into object recognition etc. Fortunately I like to plan things before building something so no harm was done.

Making a robotic arm which will collect vegetables

Now i got a stable base that can run on dirt and can bring a payload of 2kg, remote controlled and a good brain which can get where are the veggies.

The robot base is controlled with arduino, and i want it to control a robotic arm to collect things.

What is the cheapest way to get an arm that can lift at most 1kg, grab firmly but not squeeze?

Robot Class

I am in the process of submitting a course proposal for an adult evening education program that would introduce people to robotics. One of the entries that I must fill in deals with expected material costs. I would appreciate feedback on what would be appropiate expenses and whether the school should include the costs as part of the registration or if the student should buy the components as needed. I am in favor of having an option not to build.

On a similar note, would it be better to first offer a course in "C" programming geared to a possible robotics controller board?

Detecting someone is using a Desk. [Sensor Advice]

I want to do a system or robot that detects someone is using a desk. My question is which sensor or type of detection you would recommend me to use to allow to know someone is using a desk.

 

My choice are:

-Using an LED and LDR under the table if a person sits, it will detect. (If they wear a black cloth maybe it will not reflect back).

-Use an RFID tag, the person that uses the desk's touch with a tag.

-Distance sensor, in ebay this sensor is very cheap.

 

Not Automatic choice

Again ... Encoder Counts Problem

I am again… !

Encoders problem again…!

Odometery problem again…!

.

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How to make two way communication between Arduino and C#

Hi Guys,

I have been trying to get the value of a few sensors on C# from Arduino and pass a value from C# to arduino for a motor. That is 

Sensors---> Arduino ----> C#

&

C#---> Arduino --- > Motor

I am able to do these two things individually, but not together. The reason being that the serial is able to hold only one set of data at a time. Is there a solution to it, or will it be that I will have to use one arduino for sending and one arduino for receiving the data. Please help me through this situation. 

Thanks,

Wafers handling robotics arms

Hi to all the forum members, my questions for this tread are correlated to the robotics arms for wafers like the robotics arms that are in this website:

www.kensingtonlabs.com

1. why is so important to build very very accuracy robotics arms, Wafer Handling Systems , in the machines of semiconductors industry that arrive to 1 micro meter accuracy? in other words why the semiconductors industries invest a lot of money in research and development of very very accuracy robotics arms? and how it will make the chips for the CPU of the computers or smartphones better?

Wafers handling robotics arms

Hi to all the forum members, my questions for this tread are correlated to the robotics arms for wafers like the robotics arms that are in this website:

www.kensingtonlabs.com

1. why is so important to build very very accuracy robotics arms, Wafer Handling Systems , in the machines of semiconductors industry that arrive to 1 micro meter accuracy? in other words why the semiconductors industries invest a lot of money in research and development of very very accuracy robotics arms? and how it will make the chips for the CPU of the computers or smartphones better?

ComMotion Shield for omni and mecanum wheel robots

After building my first omni wheel robot I realized how difficult it can be to monitor 4 encoders and drive 4 motors so I designed the ComMotion shield. As the name suggest the shield is designed for motion control but as I ended up with 2 spare serial ports I decided to add communications abilities to the shield hence the name ComMotion.

Easily create a linear slide motion

You can now build linear slides with our Actobotic beams and gear racks!

Picaxe Programming HELP!!

Hi guys, if someone coud make a sample picaxe program for me to use and message it or post it in this forum it woud be greatly appreciated, as i cannot find a program for my system anywhere.

Accelerometer.. Which to buy?

I wanna get an accelerometer for my bot.

Need help with Rover 5 robot

 

I had Rover 5 robot with dimensions below

 

Gearbox ratio: 86.8:1

Encoder type: Quadrature

Encoder resolution: 1000 state changes per 3 wheel rotations