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Can Arduino Pins Be Used As Ground?

January 24, 2024 by David Evans

Can Arduino Pins Be Used As Ground? There are several GND pins on the Arduino, any of which can be used to ground your circuit. 5V (4) & 3.3V (5): As you might guess, the 5V pin supplies 5 volts of power, and the 3.3V pin supplies 3.3 volts of power. Can I use digital

What Does AnalogRead Return?

January 24, 2024 by Charlene Dyck

What Does AnalogRead Return? The microcontroller of the board has a circuit inside called an analog-to-digital converter or ADC that reads this changing voltage and converts it to a number between 0 and 1023. … In between, analogRead() returns a number between 0 and 1023 that is proportional to the amount of voltage being applied