Let's Make Robots!


gyroscope self balances on two legs
I present some lessons learned about self balancing a structure or vehicle using a mechanical gyroscope and I show how I built a demonstration model. Read more
self balance
Using a
I controlled my balance robot using a a two fuzzy logic controller 1-one for (IMU feedback) using as input the angle and change in angle , the output is a PWM1 . … Read more
self balance
Using a
I control this robot by using two PID , one for gyro and other encoder measurement 1-one PID for tilt angle to let a robot it standing up 2-second PID for … Read more

Help me choosing materials/components for my robot

Hello, i need to make a two wheel self balancing robot , like this one: http://letsmakerobots.com/node/19558 .

I need help about components:

1) about microprocessor i saw Arduino UNO and Ardquino NANO ,nano is more expensive, there is real difference about this two controllers???

2) Gyroscope i have already - ADXRS610Z

Razor IMU - 9 Degrees of Freedom - Has anyone used it?

Hello People

I wonder if anyone has any experiance with the Razor IMU with 9 Degrees of Freedom from sparkfun. Is is value for money?

I have found one here http://proto-pic.co.uk/9-degrees-of-freedom-razor-imu-ahrs-compatible/ at what seems a very reasonable price as far as UK prices are concerned (£72 + 6 shipping). Some places are mad expensive, up to almost £120...

dead reckoning algorithms / solutions

Hello All

Me again, flogging a (hopefully not) dead horse.

I wonder if anyone can provide links/guidance/code/insight into dead reckoning programming using the various (relatively) low cost components available to us.

I am thinking of things such as gyroscopes, accelerometers, magnometers etc. At this point I am excluding wheel encoders (since my vehicle is tracked and suffers from slipping tracks) or any form of external input such as beacons or gps etc.

The Accel_Gyro Board represents a 5DOF Inertial Measurement Unit (IMU), capable of measuring acceleration on all 3-axis as well as measuring rotation rate around … Read more
DESCRIPTION: This is my second robot, and my second balance-bot. With this robot I try to improve and learn. My goal is simple; understanding. Read more