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Hello, I'm a research assistant at a university in belgium, and I need to connect a gyroscope to the basicx BX-24. Has anyone done this before? And which gyroscope is most convenient to use? Thanx in advance, Tom De Weyer

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If you are talking about the kind of gyro that goes into a model helicopter - then you need to send it a 1.5 ms pulse train as a reference signal. The output of the gyro controller is a pulse string where pulse length is between 1 and 2 ms. Feed this into any io pin and read pulse length. If you are talking about a murata or tokin gyro chip then just set up an op-amp to about 50 to 100 gain (I set mine for 62 for maximum resolution in a/d). Then just read the voltage on the pin (should be 2.5 volts for stationary, 0 vdc for one direction and 5 vdc max in the other direction for +/- 60 deg/sec angular velocity). I have also worked with the Analog Devices (adxl-05 ?). They have analog output versions - see above for similar connections. They also have a digital output version - I have not used this device but it is attractive since you don't have to fiddle around with the analog components. Just connect to pin and read pulse length or freq. or whatever the output is. richard ----- Original Message ----- From: "Tom De Weyer" <> To: <> Sent: Monday, December 11, 2000 5:18 AM Subject: [BasicX] gyroscope > > Hello, > > I'm a research assistant at a university in belgium, and I need to connect a > gyroscope to the basicx BX-24. > Has anyone done this before? And which gyroscope is most convenient to use? > > Thanx in advance, > > Tom De Weyer

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Has anyone tried out the servo and stepper controllers from www.ferrettronics.com ? What they offer looks really interesting. Like 5 servo's serial controlled with only 2 i/o lines. They can even be daisy chained up to 255 servo's all controlled with only 2 i/o lines. They have a stepper controller with similar features. Cory

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What about this? Has anyone used Scott Edwards Mini SSC II servo controller? http://www.seetron.com/ssc.htm If so how did it work for you? It appears to be a little bit easier to program. Thanks Cory

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At 10:00 AM 12/13/00 -0700, someone wrote: >What about this? Has anyone used Scott Edwards Mini SSC II servo controller? >http://www.seetron.com/ssc.htm If so how did it work for you? It appears to >be a little bit easier to program. This is a great product. It works well, with no jitter in the servos. The serial control codes are very simple - you can download the manual from Scott's site. Duncan

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Hi, I have a small robot(Lynx) and I am starting to play with navigation. I would like some info on how to connect the gyros like: What is pratical , for the amount of readings a second. What and how to compute the data into a relative start position. How accurate can that be, to have the robot wander in one room and come back to the original position.(As close as possible) What make of gyros are better for this application. Any advice or ideas would be appreciated. Octavio Ruivo

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