Your system will use it to sense the ground’s proximity. Male-to-Male Jumper Wires: These wires are ideal for the prototyping phase, as they can be swapped out very easily. As you finalize your design you should transition to the smaller cut wires from your wire kit to keep the circuit compact and free from tangles. Required Tools: You will need eye protection, wire strippers, needle nose pliers, a pair of scissors, a box cutter, and a hot glue gun. Circuit Background: The completed circuit will the Arduino to interact with the range finder. The pushbutton is not essential for the range finder to operate, but it makes troubleshooting much easier. The most basic circuit will have three main components: The pushbutton; A resistor; and “pull-down” A capacitor The term resistor” may seem foreign, but the concept is very simple. Imagine you “pull-down have a wire that is connected to Digital Pin 2 on the Arduino and is wired to a push-button on the breadboard: When you the button, Pin 2 is connected to the 5V rail via the closed switch and the Arduino reads a HIGH input (a digital What does the Arduino read when the button isn’t ‘1’). pressed? Since the wire on Pin 2 isn’t connected to Ground or 5V without the button, it is actually very difficult to tell. The unconnected wire is referred to as a pin” and can “floating cause troubleshooting problems.
Your system will use it to sense the ground’s proximity. Male-to-Male Jumper Wires: These wires are ideal for the prototyping phase, as they can be swapped out very easily. As you finalize your design you should transition to the smaller cut wires from your wire kit to keep the circuit compact and free from tangles. Required Tools: You will need eye protection, wire strippers, needle nose pliers, a pair of scissors, a box cutter, and a hot glue gun. Circuit Background: The completed circuit will the Arduino to interact with the range finder. The pushbutton is not essential for the range finder to operate, but it makes troubleshooting much easier. The most basic circuit will have three main components: The pushbutton; A “pull-down” resistor; and A capacitor The term “pull-down resistor” may seem foreign, but the concept is very simple. Imagine you have a wire that is connected to Digital Pin 2 on the Arduino and is wired to a push-button on the breadboard: When you the button, Pin 2 is connected to the 5V rail via the closed switch and the Arduino reads a HIGH input (a digital ‘1’). What does the Arduino read when the button isn’t pressed? Since the wire on Pin 2 isn’t connected to Ground or 5V without the button, it is actually very difficult to tell. The unconnected wire is referred to as a “floating pin” and can cause troubleshooting problems.
u08_l04_09-h7-descent_circuit_details.docx