Arduino with PCF8574P Switches Toggle On-Off LEDs @LewisLoflin

Arduino with PCF8574P Switches Toggle On-Off LEDs @LewisLoflin

Uploaded July 2020 | Updated September 2026, 47 minutes ago

Program an Arduino connected to PCF8574 GPIO expander detects switches toggle associated LEDs on-off. Part 2 of 3. Also, see the introduction video:
youtu.be/LveEG36OOkE
Schematics, etc:
bristolwatch.com/picaxe2/dd6.htm
bristolwatch.com/picaxe2/dd8.htm

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Arduino with PCF8574P Switches Toggle On-Off LEDs