The motor driver board contained a ULN2003 This is mainly one of the default examples that comes with the stepper library Code #include <Stepper.h> const int stepsPerRevolution = 512; //…
Author
iainhendry71
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The circuit shown here uses a NPN transistor connected to a an Arduino output pin to switch an LED pin, obviously this is just an example. In real life you…
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This code example switches on all the LEDS on a 8×8 LED matrix, this is controlled by a MAX7219 You will need the Led Control library #include “LedControl.h” /* Max7219_pinCLK…
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When you are looking for low cost sensors to begin experimenting with then a PIR is a nice low cost option. In the following example we will demonstrate the HC-SR501 PIR sensor,…
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Connect an LED to digital pin 3 void setup() { pinMode(3, OUTPUT); } void loop() { for (int a = 0 ; a < 256 ; a++) { analogWrite(3, a);…
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A reed switch is a small device that when the device is exposed to a magnetic field, the two materials inside the switch pull together and the switch closes. When…