/* Copyright (c) 2018 FIRST. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted (subject to the limitations in the disclaimer below) provided that * the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this list * of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, this * list of conditions and the following disclaimer in the documentation and/or * other materials provided with the distribution. * * Neither the name of FIRST nor the names of its contributors may be used to endorse or * promote products derived from this software without specific prior written permission. * * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS * LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.firstinspires.ftc.robotcontroller.external.samples; import com.qualcomm.robotcore.eventloop.opmode.Disabled; import com.qualcomm.robotcore.eventloop.opmode.LinearOpMode; import com.qualcomm.robotcore.eventloop.opmode.TeleOp; import com.qualcomm.robotcore.hardware.DcMotorSimple; import com.qualcomm.robotcore.util.ElapsedTime; import com.qualcomm.robotcore.util.Range; /** * * This OpMode executes a basic Tank Drive Teleop for a two wheeled robot using two REV SPARKminis. * To use this example, connect two REV SPARKminis into servo ports on the Expansion Hub. On the * robot configuration, use the drop down list under 'Servos' to select 'REV SPARKmini Controller' * and name them 'left_drive' and 'right_drive'. * * Use Android Studios to Copy this Class, and Paste it into your team's code folder with a new name. * Remove or comment out the @Disabled line to add this opmode to the Driver Station OpMode list */ @TeleOp(name="REV SPARKmini Simple Drive Example", group="Concept") @Disabled public class ConceptRevSPARKMini extends LinearOpMode { // Declare OpMode members. private ElapsedTime runtime = new ElapsedTime(); private DcMotorSimple leftDrive = null; private DcMotorSimple rightDrive = null; @Override public void runOpMode() { telemetry.addData("Status", "Initialized"); telemetry.update(); // Initialize the hardware variables. Note that the strings used here as parameters // to 'get' must correspond to the names assigned during the robot configuration // step (using the FTC Robot Controller app on the phone). leftDrive = hardwareMap.get(DcMotorSimple.class, "left_drive"); rightDrive = hardwareMap.get(DcMotorSimple.class, "right_drive"); // Most robots need the motor on one side to be reversed to drive forward // Reverse the motor that runs backwards when connected directly to the battery leftDrive.setDirection(DcMotorSimple.Direction.FORWARD); rightDrive.setDirection(DcMotorSimple.Direction.REVERSE); // Wait for the game to start (driver presses PLAY) waitForStart(); runtime.reset(); // run until the end of the match (driver presses STOP) while (opModeIsActive()) { // Setup a variable for each drive wheel to save power level for telemetry double leftPower; double rightPower; // Choose to drive using either Tank Mode, or POV Mode // Comment out the method that's not used. The default below is POV. // POV Mode uses left stick to go forward, and right stick to turn. // - This uses basic math to combine motions and is easier to drive straight. double drive = -gamepad1.left_stick_y; double turn = gamepad1.right_stick_x; leftPower = Range.clip(drive + turn, -1.0, 1.0) ; rightPower = Range.clip(drive - turn, -1.0, 1.0) ; // Tank Mode uses one stick to control each wheel. // - This requires no math, but it is hard to drive forward slowly and keep straight. // leftPower = -gamepad1.left_stick_y ; // rightPower = -gamepad1.right_stick_y ; // Send calculated power to wheels leftDrive.setPower(leftPower); rightDrive.setPower(rightPower); // Show the elapsed game time and wheel power. telemetry.addData("Status", "Run Time: " + runtime.toString()); telemetry.addData("Motors", "left (%.2f), right (%.2f)", leftPower, rightPower); telemetry.update(); } } }