Design of 1-axis angular rate sensor (gyro) on I2C bus using MSP430
Design of 1-axis angular rate sensor (gyro) on I2C bus using MSP430
(OP)
Hi everybody, I need some help.
I'm working on a project of 1-axis angular rate sensor (gyroscope) able to sense an angular velocity of 10rpm...communicating with a microcontroller MSP430 on I2C bus. This sensor would be assembled aboard a small satellite, used for the attitude control subsystem.
I'm looking on web for a single axis gyro that uses the I2C interface. The only "I2C gyro" I found was the STMicro LY530AL, the others are all SPI.
Does anyone have any suggestions?
If I use an analog output gyro as ADXRS620, what can I do?
Can I use an appropriate ADC with I2C output to interface the analog output of the sensor with the microcontroller, or what else?
Does someone have some useful advices for my work, links on projects or schematic design whom I can look at?
Thank you all for your time
Joe
I'm working on a project of 1-axis angular rate sensor (gyroscope) able to sense an angular velocity of 10rpm...communicating with a microcontroller MSP430 on I2C bus. This sensor would be assembled aboard a small satellite, used for the attitude control subsystem.
I'm looking on web for a single axis gyro that uses the I2C interface. The only "I2C gyro" I found was the STMicro LY530AL, the others are all SPI.
Does anyone have any suggestions?
If I use an analog output gyro as ADXRS620, what can I do?
Can I use an appropriate ADC with I2C output to interface the analog output of the sensor with the microcontroller, or what else?
Does someone have some useful advices for my work, links on projects or schematic design whom I can look at?
Thank you all for your time
Joe





RE: Design of 1-axis angular rate sensor (gyro) on I2C bus using MSP430
If it's a microsat (with all that implies about how it is ejected into orbit), then how do you know that it'll be neatly spinning around one predefined axis? Combined with the availability of tiny MEMS 3-axis gyros (hint: iPhone 4), wouldn't it be safer and no additional mass to go with three axis?
RE: Design of 1-axis angular rate sensor (gyro) on I2C bus using MSP430
Keith Cress
kcress - http://www.flaminsystems.com
RE: Design of 1-axis angular rate sensor (gyro) on I2C bus using MSP430
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RE: Design of 1-axis angular rate sensor (gyro) on I2C bus using MSP430
It definitely doesn't make sense to me to use a separate ADC module just so you get I2C.