https://stream.echo6.co/videos/watch/e484402f-bd1b-4cbd-8afc-65cf2c046b27 Dave breadboards a 1988 vintage Tandy / Radio Shack VCP200 speaker independent voice recognition chip from Voice Control Products Inc. Will it work after 27 years? Will it recognise his Australian accent? Special guest appearance by Sagan! Forum: http://www.eevblog.com/forum/blog/eevblog-713-vcp200-voice-recognition-1980's-style/ Radio Electronics magazine April 1991: http://ia601702.us.archive.org/21/items/radio_electronics_1991-04/Radio_Electronics_April_1991.pdf Forest Mimms article in 1989 Modern Electronics magazine: http://www.americanradiohistory.com/Archive-Modern-Electronics/Modern-Electronics-1989-01.pdf MC68HC04 Datasheet: http://images.ihscontent.net/vipimages/VipMasterIC/IC/MOTO/MOTOD005/MOTOD005-3-355.pdf M6804 User Manual: http://www.textfiles.com/bitsavers/pdf/motorola/6804/M6804_MCU_Manual_Sep85.pdf EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog EEVblog Amazon Store (Dave gets a cut): http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/ Sun, 17 May 2026 05:45:55 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/e484402f-bd1b-4cbd-8afc-65cf2c046b27 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.