Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: Voltairevillain on April 06, 2013, 07:34:47 PM
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Hi everyone, first post here..
I'm trying to find a very simple IMU for a self-balancing skateboard prototype I'm building.
I require a single axis IMU (1 gyro and 1 accelerometer), with an analog output (0v-3.3v). It will be communicating with a standard Arduino controller (Analog would be preferred)
Gyroscope sensitivity required: +-300deg/s
Accelerometer sensitivity required: +-3g
So far I've been looking through Sparkfun and AdaFruit and I can't find anything compatible. I must be missing something but I can't find anything anywhere.
Does anyone have any suggestions on where I can find this? Thanks in advance for your help!
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SparkFun has this accelerometer:
https://www.sparkfun.com/products/9332 (https://www.sparkfun.com/products/9332)
It is however a 250g full scale so would not be sensitive enough for your needs.
Whereas, these accelerometers are 3-axis and have a full scale range better suited:
https://www.sparkfun.com/products/9269 (https://www.sparkfun.com/products/9269)
https://www.sparkfun.com/products/9652 (https://www.sparkfun.com/products/9652)
These will work fine if you only use one output.
Same with the Gryo. Use a 2 or 3-axis gryo and only use one output like this one:
https://www.sparkfun.com/products/11341 (https://www.sparkfun.com/products/11341)
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Thanks a lot for the information. I realize I had forgot to list the sensitivities I was after so I edited my original post.
I will look into these sensors.
Thanks again,
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Ok. Yea, I forgot to ask what sensitivity you needed.
An advantage of using 3-axis devices is that you can then just mount them in the most convenient way. Then chose which axis to use as an output.
I do not think there is any price advantage between a 2/3-axis senor and a 1-axis sensor.