Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.
palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1965
Posted: 01:40pm 06 Jul 2014
Copy link to clipboard
Print this post
Just wrote a simple program to generate tones from 1KHz to 20Khz in 1Khz steps at an interval of 1 second. I was surprised to learn I could only hear to 9KHz (I'm 70yo.)
My daughter fared better at 15KHZ and my grand daughter got to 17KHZ.
Paul."It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"
halldave Senior Member Joined: 04/05/2014 Location: AustraliaPosts: 121
Posted: 02:26pm 06 Jul 2014
Copy link to clipboard
Print this post
What a fantastic idea
Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9489
Posted: 02:59pm 06 Jul 2014
Copy link to clipboard
Print this post
Too many loud rock concerts in your youth, Paul? Smoke makes things work. When the smoke gets out, it stops!
greybeard Senior Member Joined: 04/01/2010 Location: AustraliaPosts: 169
Posted: 04:19pm 06 Jul 2014
Copy link to clipboard
Print this post
If you can't hear the tone is it really happening?
Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9489
Posted: 04:23pm 06 Jul 2014
Copy link to clipboard
Print this post
If a tree falls in the woods, and no-one is around to hear it, does it make a sound? Smoke makes things work. When the smoke gets out, it stops!
Lou Senior Member Joined: 01/02/2014 Location: United StatesPosts: 229
Posted: 04:36pm 06 Jul 2014
Copy link to clipboard
Print this post
If a man speaks and there is no woman around to hear it, is he still wrong ??
Great idea Paul. I'm eventually going to try dialing touch tones with the uMite.
When I get one of those round tuits.
LouEdited by Lou 2014-07-08Microcontrollers - the other white meat
greybeard Senior Member Joined: 04/01/2010 Location: AustraliaPosts: 169
Posted: 05:32pm 06 Jul 2014
Copy link to clipboard
Print this post
Talk about speaking behind a blokes back in a high pitched voice......
centrex Guru Joined: 13/11/2011 Location: AustraliaPosts: 320
Posted: 11:15pm 07 Jul 2014
Copy link to clipboard
Print this post
Great idea Palcal, I'm 76 and definitely need a check.
Are you going to share the code.
Regards
CliffCliff
plasma Guru Joined: 08/04/2012 Location: GermanyPosts: 437
Posted: 11:03am 08 Jul 2014
Copy link to clipboard
Print this post
yeah nice idea ! check yourself with Micromite .
palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1965
Posted: 08:40pm 08 Jul 2014
Copy link to clipboard
Print this post
@Centrex
It wasn't really a project I was working on something else and the idea just came to mind.
The code.
For x = 1000 to 20000 step 1000
PWM 1,x,50
Pause 700
Next x
Connect a small speaker between Pin4 and ground. Run the program and count how many tones you can hear.
Paul."It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"
centrex Guru Joined: 13/11/2011 Location: AustraliaPosts: 320
Posted: 11:11pm 08 Jul 2014
Copy link to clipboard
Print this post
Thanks palcal
I will give it a try on the weekend
regards
CliffCliff