RPM "Danger Band" warning device?

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cardiffrob
Posts: 370
Joined: Wed Jan 16, 2008 3:56 pm

Re: RPM "Danger Band" warning device?

Post by cardiffrob » Thu Jan 29, 2015 3:52 pm

Image


Water temp and rpm now fully calibrated. 1475 rpm and 19.81 degrees centigrade on the upside-down LCD screen in the top right corner.
Rob Thomas
034851

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ColinC
Posts: 405
Joined: Tue Jan 08, 2008 5:05 pm
Location: Derbyshire

Re: RPM "Danger Band" warning device?

Post by ColinC » Fri Feb 06, 2015 9:18 pm

Hi,

Inspired by Rob''s progress, I have managed to get a very well calibrated digital compass working after a few hours work. The process of calibration to offset the effects of adjacent metalwork is quite interesting, I learned a lot from that exercise.

However, it is upset by tilting it so have invested a massive £12 on a 10 degrees of freedom sensor which gives a 3-axis accelerometer, 3-axis gyro and 3-axis magnetometer together with a barometer. With this and by exercising my maths a little (aided by the wealth of existing libraries on the internet) I think I can develop a little DI style compass that works in almost any attitude.

This is a very interesting diversion whilst it's so cold in the shed!

Regards,

Colin
018841
Colin Cheese

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