This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

The outputs from the potentiometers are analog, so they can have a value only between 0 and 1,023 when read by the analog pin of the Arduino. This number sends a pulse to the Arduino, which in ...

float – Similar to int but for numbers with decimals. You can read up on other elements in the Arduino Language Reference. You now have your materials and a foundational understanding of the ...

The Arduino Esplora is a ready-to-use ... It also has 2.5 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library). Input and Output The design of the Esplora board ...

so [Brett] decided to use an Arduino instead. The welders control circuit runs at 24V, so an optoisolator receives the trigger signal, and relays are used for outputs. Potentiometers were added to ...

The Arduino Mega's PWM pins ... One is using an analog input like a potentiometer. In this case, the analogWrite() value is dependent on the value read from the input. This analog input reading ...

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