RPM "Danger Band" warning device?

Come on in for general chat and POLITE banter between LAA members

Moderators: John Dean, Moderator

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


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

User avatar
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


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!


Colin Cheese

Post Reply