Looking for somebody to hire for quick Arduino related job

Former Member over 10 years ago

Hi!

I am vaguely familiar with Arduino programming but for my next trick I will need some help.

The job:

Make this linear actuator:

Tritex II DC Linear Actuator — Tritex Integrated Products | Exlar

controllable with this pressure differential:

MPXV7002DP Freescale Semiconductor | Mouser

The actuator will go to the center of the range when no pressure is applied, and go either way according to whether the user sucks or blows into a straw, of course the signal is analog. The linear actuator will be used to steer a vehicle I am building that you can see here:

The Spider Crab Blog

Please contact me if you or anybody you know is capable of making this happen, or if you have suggestions.

Thank you,

Skye

dougw over 10 years ago

Hi Skye,
I don't think you need an arduino at all. This actuator can respond directly and proportionally to an analog voltage such as the voltage produced by the sensor. You may need to adjust offset and amplification, but it looks like the actuator can probably handle these adjustments using its own programmable setup.
Doug
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Former Member over 10 years ago in reply to dougw

Cool! Thanks Doug! I might still want the arduino to lessen the steering amount when traveling faster but that is awesome news, thank you. I should mention also that I am in Pacifica, CA (bay area)
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dougw over 10 years ago in reply to Former Member

An arduino would work, but you could also avoid programming by having a simple analog circuit that would attenuate the control signal in proportion to the speed.
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