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Ultrasonics basics
ka7ehk wrote:However the project link in the OP really shows a non-echo system with three receivers and one transmitter. I have not figured out the geometry but my hunch is that...
Sunday, 9 October 2011 - 12:34
Can an accelerometer measure position accurately?
bobgardner wrote:Everyone seems to use regular old Forward Euler integrators to 'add up' the little delta Vs. Wouldnt a trapezoidal or simpsons rule integrator have less error?...
Wednesday, 5 October 2011 - 14:00
Can an accelerometer measure position accurately?
meslomp wrote:dont you also need gyros for that, and perhaps even a compass to tell you what heading you are pointing at. that would give you 9DOF and should make you able to...
Wednesday, 5 October 2011 - 05:36
Can an accelerometer measure position accurately?
smkipus wrote:So I've read everything you all have suggested I read. Since I'm only concerned with tracking motions of a few inches at a time, I'll simply tune the system as best...
Wednesday, 5 October 2011 - 00:36
Can an accelerometer measure position accurately?
smkipus wrote:Sorry about vague words like accurately and good... I just want to know if it is even possible at all to achieve a position reliable from an accelerometer. This was...
Tuesday, 4 October 2011 - 23:09
how to set the functions in sp_driver.S inside boot section?
TomQi wrote:When I tried to build the applcation and bootloader together, the sp_driver.S had an issue as above discussion... Whilst I understand that it doesn't quite answer your...
Monday, 3 October 2011 - 08:21
built in self test
Some sensors have a self-test facility. For example, the SCA103T inclinometer has a pin that causes an electrostatic force to deflect the proof mass, for which the response (i.e....
Wednesday, 28 September 2011 - 06:11
how to set the functions in sp_driver.S inside boot section?
I simply moved the .text to the boot section. You can see the example code here. Give this a go and see what happens. -- Damien
Friday, 23 September 2011 - 03:25
Gps inside building
ana57 wrote:Is it possible to generate GPS field inside buildings, where normal signal is too weak. I read about pseudolite which can do the job but cannot find any. Locata is...
Sunday, 18 September 2011 - 22:17
Help with first revision engineering design document
smkipus wrote:Implying my thousand sticky notes all over my office is a bad thing =/ good tip on pictures though, voice recorder is the way to go also, I'll dig mine up. What do...
Saturday, 17 September 2011 - 03:55
Help with first revision engineering design document
DocJC wrote: If the business is small it may not have a central server which you are operating off of, and storing files on, and auto-backing up every night. Using something like...
Saturday, 17 September 2011 - 03:51
1-wire (or I2C) to USB bridge
There's an I2C-USB bridge based on an ATtiny too with a kernel driver. Choices! -- Damien
Monday, 12 September 2011 - 11:07

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