Beyond Arduino: 5 - Learn A Trick to Read Multiple Switches with one Pin
MP4 | Video: AVC 1280x720 | Audio: AAC 44KHz 2ch | Duration: 24M | 61 MB
Genre: eLearning | Language: English
MP4 | Video: AVC 1280x720 | Audio: AAC 44KHz 2ch | Duration: 24M | 61 MB
Genre: eLearning | Language: English
In this class you will learn how to read multiple input switches with only one GPIO pin using your favorite microcontroller platform!
It's a very interesting algorithm that uses both data directions of a GPIO pin (input and output) to measure time based on Resistance and Capacitance.