UltraEcho 2009Aug10: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
Line 14: | Line 14: | ||
Another heterodyne [http://cgi.ebay.com/BX-1-Ultrasonic-Bat-Insect-Rodent-Bird-Sound-Detector_W0QQitemZ260460434763QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ca4a6d54b&_trksid=p3286.c0.m14 eBay guy who builds them] | Another heterodyne [http://cgi.ebay.com/BX-1-Ultrasonic-Bat-Insect-Rodent-Bird-Sound-Detector_W0QQitemZ260460434763QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ca4a6d54b&_trksid=p3286.c0.m14 eBay guy who builds them] | ||
[http://njsas.org/projects/bat_detector/01/sk207_sch.html heterodyne], [http://home.earthlink.net/~bat-detector/TheBatShop.html frequency division] | [http://njsas.org/projects/bat_detector/01/sk207_sch.html heterodyne], [http://home.earthlink.net/~bat-detector/TheBatShop.html frequency division]. | ||
We hooked the speaker in the Secret Sounds toy up to frequency generator. | |||
==Goal== | ==Goal== |
Revision as of 21:12, 10 August 2009
Ultrasonic Listening & Echolocation Hack Notes for August 10th, 2009
Eric and David have agreed to meet regularly on Monday nights to hack on the ultrasonic listening and echolocation kit idea/project. Tonight's goal: review all that we know, brain storm, and decide on a plan of attack for moving forward: what do we want to do/try first?
Review
- we have what we think is a non-tunable hererodyne ultrasonic listening toy
- there are also frequency division & time expansion techniques/kits/products
- we know little about the Spanish scientists who are training people to do echolocation by clicking their palates
- there are also interesting "directional sound" sensors & displays
Research
Another heterodyne eBay guy who builds them
heterodyne, frequency division.
We hooked the speaker in the Secret Sounds toy up to frequency generator.
Goal
A ultrasonic ranging device usable by blind people - or others who are interested.
Ideas for Moving Forward
- we could investigate what frequencies it does operate with
- we could order some kits or build our own
- we could find out more, do more research about what academia/the internet knows
- we could build the Arduino 3D sound compass display