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Cal Gas Sensor

$29.95

Detect a range of noxious gases with this analog sensor.

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SKU: 45-2302 Category:

Description

The AS-MLV-P2 high-performance sensor component is highly sensitive to volatile organic compounds for superior monitoring of indoor air quality. Detect alcohols, aldehydes, ketones, organic acids, amines, aliphatic and aromatic hydrocarbons. 

Take caution. Do not get liquids on the component. Do not operate this sensor in the vicinity of silicone and polysiloxanes. Do not use this sensor for medical or safety applications.

If the device hasn’t been powered for a week or more, it must be “pumped” out by leaving it powered. Contamination soaks into the chip and must be boiled off. This process may take from an hour up to 24 hours depending on how long it has spent in an unpowered state.

Cable not included

Sensor Type
Three Wire Analog Sensor
Dimensions
32 mm x 32 mm x 6 mm
Mounting Holes
24 mm x 24 mm, 4mm ⌀
Power
3.3 V DC, 20 mA
Signal Logic Levels
Analog 0 V – 3 V

Additional information

Weight .0135 lbs
Dimensions 3 × 4 × .5 in

FTC SDK

Android Studio Example Program

Download the below program for an example of how to read this Analog sensor. The FTC SDK will supply a value from 0-5 representing a voltage.

In your configuration file, name an Analog Input “light” and name a Core Device Interface Module “Device Interface Module 1”

/*
Modern Robotics Analog Example
Created 7/25/2017 by Colton Mehlhoff of Modern Robotics using FTC SDK 3.10
Reuse permitted with credit where credit is due

The Modern Robotics Core Device Interface reads analog input
using a 10 bit value meaning the Android Phone reads a value from 0 to 1023.
The FTC SDK supplies a "voltage". The SDK is scaling this value of 0-1023 to 1-5 with decimal places.

Configuration:
Analog Input on Core Device Interface "light"
Core Device Interface named "Device Interface Module 1"

Support is available by emailing support@modernroboticsinc.com
*/

package org.firstinspires.ftc.teamcode;

import com.qualcomm.robotcore.eventloop.opmode.LinearOpMode;
import com.qualcomm.robotcore.eventloop.opmode.TeleOp;
import com.qualcomm.robotcore.hardware.AnalogInput;
import com.qualcomm.robotcore.hardware.DeviceInterfaceModule;


@TeleOp(name = "Analog Example", group = "MRI")
//@Disabled
public class MRI_Analog_Example extends LinearOpMode {

    //An Analog Input. In this example, we used a Light Sensor although it could be any analog sensor.
    AnalogInput MRLightSensor;

    //CDI. Using this, we can read any analog sensor on this CDI without creating an instance for each sensor.
    DeviceInterfaceModule cdi;

    @Override
    public void runOpMode() {
        telemetry.addData("Status", "Initialized");
        telemetry.update();

        //Link objects to configuration file
        MRLightSensor = hardwareMap.analogInput.get("light");
        cdi = hardwareMap.deviceInterfaceModule.get("Device Interface Module 1");

        waitForStart();

        while (opModeIsActive()) {

            //Read the light sensor using the Analog Input object
            telemetry.addData("light", MRLightSensor.getVoltage());

            //Read each Analog Port of the CDI. 0-7
            for (int i = 0; i < 8; i++) {
                telemetry.addData("Analog " + i, cdi.getAnalogInputVoltage(i));
            }
            telemetry.update();
        }
    }
}