Calculating Wheel Movement for Accurate Turns

Overview: Two Types of Turns Calculating Rotations for Pivot Turns Equation for Calculating Pivot Turns Calculating Rotations for Point Turns Equation for Calculating Point Turns Relationships Between the Two Types of Turns Parting Thoughts Two Types of Turns: Pivot Turn – robot turns about a central point located at one of the wheels One wheel […]

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EV3-G Compare Block

Compare allows you to compare two numeric values with Equal To, Not Equal To, Greater Than, Greater Than or Equal To, Less Than, or Less Than or Equal To. Using the Math programming block and a Switch, you can set it up to have different reactions depending on the result. There is an example below. […]

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EV3-G Sound Programming Block

This block is designed solely to make some noise, whether it be a note, frequency, pre-programmed, or even user-created. It has four functions: Stop, Play File, Play Tone, and Play Note. Stop Stop is designed to simply cease all sound. It is good for situations when sound needs to stop; it is very similar to […]

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Driving Straight with Gyroscope & PID

Download Code: DrivingStraightWithGyroscopePID.ev3 A proportional–integral–derivative controller (PID controller) is a control loop feedback mechanism. As the name suggests, PID algorithm consists of three basic coefficients: proportional, integral and derivative which are varied to get optimal response. In practical terms it automatically applies accurate and responsive correction to a control function. An everyday example is the cruise control on a road […]

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Infrared Sensor

You can use the Infrared Sensor to measure the distance to an object, or the distance and direction to the remote. (The Infrared Sensor is not included in the Education Edition.) You can often substitute the Ultrasonic Sensor (using one of the Distance modes) for the Infrared Sensor to measure distance. Proximity Mode Use Proximity […]

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EV3-G Data Wires

Using data wires, you can change a block’s settings while a program is running (by using data from a new sensor reading, for example). Data wires are one of the most powerful EV3 programming features, and learning how to use them will open up many more possibilities for your programs. 228 total views, no views today […]

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Power Take-off Frame Assembly

Download LEGO Digital Designer CAD File: PTO_Frame.lxf 750 total views, no views today    Send article as PDF   

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2018 FIRST Foundation World Championships

Watch 2018 FIRST Championship Houston from FIRSTinspires on www.twitch.tv Watch Saturday, 4/28 at the FIRST Championship in Detroit, MI (Part B) from FIRSTinspires on www.twitch.tv 180 total views, no views today    Send article as PDF   

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Following a Line Using PID Control

Download Image: LineFollowingWithPID.png A proportional–integral–derivative controller (PID controller) is a control loop feedback mechanism. As the name suggests, PID algorithm consists of three basic coefficients: proportional, integral and derivative which are varied to get optimal response. In practical terms it automatically applies accurate and responsive correction to a control function. An everyday example is the cruise control on a road […]

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EV3-G Variable Block

Variables let you store a value and use it later in the program. For example, say you want to take a sensor reading and then compare that reading to other sensor readings in the future. To do this, you would save the first sensor reading to a variable, which you could access later and compare […]

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