EB_#530 Mini-Plaquette - Expansion GPIO par puce PCF8574

Sometimes it's necessary to increase the number of logic inputs/outputs on a microcontroller. This mini-board based on the PCF8574 chip will do the job, provided you're aware of its limitations. To find this chip on online marketplaces, search for "pcf8574 module". Video Chapter Index 00:00 Introduction 00:14 Presentation 01:53 PCF8574 - Datasheet 05:49 Close-up Analysis of the Mini-Breadboard 08:36 Demo - Input Pins - Schematic 10:16 Demo - Input Pins - Assembly 12:23 Demo - Input Pins - Source Code 14:20 Demo - Output Pins - Schematic 20:51 Demo - Output Pins - Assembly 23:37 Demo - Output Pins - Source Code 27:09 Comments and Conclusion 28:37 Credits The files relevant to my videos (source code, schematics, etc.) are located here in .ZIP format: https://bidouilleur.ca/Bidouilleur_de... The YouTube Channel Electro-Tinkerer's YouTube Channel:    / @Électro-bidouilleur   Electro-Tinkerer's Website: https://bidouilleur.ca Electro-Tinkerer's Support Page (via PayPal, Tipeee, or Patreon): https://bidouilleur.ca/content_suppor... My Amazon Wish List (you buy, I receive): https://www.amazon.ca/hz/wishlist/ls/... Electro-Tinkerer's Discussion Forum: https://forum.bidouilleur.ca Facebook Page Electro-Tinkerer's Facebook page:   / 906450239398983   Electro-Tinkerer's Ethical and Legal Notices page: https://bidouilleur.ca/notes_legales License for Electro-Tinkerer's creations: CC-BY-SA: Attribution + Share Alike 4.0 – This license allows others to copy, modify, and share Electro-Tinkerer's hardware and software creations, including for commercial use. Users of Electro-Tinkerer's creations agree to properly credit Electro-Tinkerer and include a link to the license. If they make modifications, the derivative work must be distributed under the same CC-BY-SA license. https://creativecommons.org/licenses/...