Consider throwing a die twice. If we know that the result of the first draw is 4, does this change our probability assessment for the second draw? If the die is fair, and there is no cheating on the part of the person throwing it, the answer should be no. The two rolls are independent.… Continue reading CONDITIONAL PROBABILITY AND INDEPENDENCE
Category: Arduino Projects
Rope Brake Dynamometer
Rope brake dynamometer consists of a rope wound round the rim of the pulley fixed to the shaft of the engine whose torque is to be measured. The upper end of the rope is attached with a spring balance of stiffness S and lower end of the rope is attached with a load W as shown in Figure 18.14. If the… Continue reading Rope Brake Dynamometer
The Negative Temperature Coefficient (NTC) Sensor with Processing
When we connect the Temperature Indicator sketch to Processing, the thermistor temperature data from the sketch will be displayed in the Processing IDE Console Monitor, as well as on the main screen of the computer. The layout of this Processing canvas is simple. The graphics consist of two rectangular boxes with fluttering horizontal lines. The fluttering… Continue reading The Negative Temperature Coefficient (NTC) Sensor with Processing
Upload the Temperature Indicator Sketch
After building the Temperature Indicator circuit and checking for wiring errors, it is time to upload the sketch. Example 20-1 sends analog information to the Arduino IDE (integrated development environment) Serial Monitor, and displays a series of numbers based on the thermistor’s change in resistance. It uses the same serial communication technique used in to talk with the Processing… Continue reading Upload the Temperature Indicator Sketch
Let’s Build a Temperature Indicator
As shown in Figure 20-1, the breadboard analog circuit is quite simple to build, and requires only a thermistor and a 10KΩ fixed resistor wired in series. Where the two components are tied together, a jumper wire connects between them and pin A3 of the Arduino microcontroller. The Temperature Indicator can be built using the Fritzing wiring diagram… Continue reading Let’s Build a Temperature Indicator
Parts List
Figure 20-1. The Temperature Indicator
Introduction
Here’s an awesome project that allows you to quickly check the temperature of the environment using a few electronic components. This temperature indicator uses a small electronic sensor called a thermistor, which changes its resistance—the way electricity flows through it—depending on the temperature. The electronic components to build this gadget are shown in the Parts List. The Temperature… Continue reading Introduction
The Rocket Launcher with Processing
The numbers from the MultiDigital4 sketch will be interpreted by Processing and used to drive a cool graphics screen, with color numbers and text. The layout of the Processing canvas is similar to the projects (with obvious differences in text and animation). After uploading the Rocket Game sketch to the Arduino, a jumbled blob of text… Continue reading The Rocket Launcher with Processing
Upload the MultiDigital4 Sketch
After building the Rocket Game pushbutton circuit and checking for wiring errors, it is time to upload the sketch. Example 19-1 sends digital information to the Arduino IDE (integrated development environment) Serial Monitor, displaying the numbers 0, 1, 2, and 4 with each individual press of the four pushbutton switches. The serial communication technique used in remains the same… Continue reading Upload the MultiDigital4 Sketch
Let’s Build a Rocket Game
The Rocket Game, like the projects requires the use of a USB cable to send digital information from four pushbutton switches to the computer screen. As shown in Figure 19-1, the breadboard circuit is quite simple to build and requires five 1KΩ fixed resistors and four pushbutton switches. The basic digital circuit consists of a pushbutton switch and… Continue reading Let’s Build a Rocket Game