RE: Adding Sensors to Our Rocket

vsluiter — Mon, 02 Dec 2013 20:52:08 GMT

Hi KL,

I'm missing my personal 'bests' in your list!

Accelerometers: Bosch BMA180 (probably now superseeded by BMA280). Much better performance in noise, some of the ST sensors proudly claim 12-bit while they are using oversampling of an 8-bit ADC

Gyroscopes: Invensense could also be tested (ITG-3200). Low noise, high data rate (1kHz!), very nice in robotics applications

Magnetometers: Honeywell HMC5983; haven't compared it quality-wise, but it's one of the fastest out there. It can update at 220Hz

And to combine multiple sensors: take a look at Invensense MPU9150: 3-axis gyro (ITG-3200), accelerometer and magnetometer.

This gyroscope is capable of sampling at ±245 °/s, ±500 °/s and ±2000 °/s I hope to see what ST is capable of with this sensor.

Just to be a bit nitpicky: it's not sampling at x°/s ,its range of measurement is x°/s. The Output Data Rate is what you'r after when you want to know what temporal resolution you've got.

Good luck with the challenge!

RE: Adding Sensors to Our Rocket

DAB — Mon, 02 Dec 2013 19:40:45 GMT

You might want to take a look at the Freescale MEMs sensor shield.

It is small, lightweight and could be easily interfaced with your MCU.

It will also provide you with a wealth of sensors in one package.

Just a thought,

DAB