How to connect a 5V pin with a 3.3V pin?

Reference: https://next-hack.com/index.php/2017/09/15/how-to-interface-a-5v-output-to-a-3-3v-input/ https://next-hack.com/index.php/2020/02/15/how-to-interface-a-3-3v-output-to-a-5v-input/ There are so many times when we want to connect two devices with different voltage values, mostly a 5V with a 3.3V. No matter it is a…

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Using Arduino Serial Interrupt

Ref: https://www.arduino.cc/en/Tutorial/BuiltInExamples/SerialEvent While you are communicating with ATFC touchscreen, you don't want to keep waiting for the msgs in the loop, that will take most of your Arudino in doing…

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