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Psoc4 - Touch Me Not Car

Made by ashokr / Automotive / Communication / Robotics

About the project

This project demonstrate the working of CapSense with fun.

Project info

Difficulty: Easy

Platforms: Cypress

Estimated time: 7 hours

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

	PSoC4 Breakout Mini Board	x 1
	Radio Controlled Car	x 1
	Dual H-Bridge motor drivers L293D	x 1

Story

The story starts here, I designed my own breakout mini board for PSoC4. It came good and works fine with USB power supply. While testing the CapSense example project the idea flash in mind to control the RC car with CapSense effect. I have brought mini-cooper RC car from amazon (checkout the out-of box demo here) and removed the default RC circuits in the car. Added PSoC4 mini board and H-Bridge circuits to the rear DC motor. Power for the PSoC4 mini board & H-Bridge, I taken from the existing rechargeable battery (4.7v). To make it Cap-sense to work you need to create simple antenna using insulated wire (5cm Diameter). The rest of the things you need to take care in coding.

Pin Details:

Schematics, diagrams and documents

Schematic

Code

Main

/* ========================================
 *
 * Copyright YOUR COMPANY, THE YEAR
 * All Rights Reserved
 * UNPUBLISHED, LICENSED SOFTWARE.
 *
 * CONFIDENTIAL AND PROPRIETARY INFORMATION
 * WHICH IS THE PROPERTY OF your company.
 *
 * ========================================
*/
#include "project.h"

int main(void)
{
    CyGlobalIntEnable; /* Enable global interrupts. */

 /* Initialize the input - CapSense block */

    /* 1. Enable Proximity sensor as it is disabled by default */
    CapSense_EnableWidget(CapSense_PROXIMITYSENSOR0__PROX);

    /* 2. Start CapSense block - Calibrates the proximity sensor for the set sensitivity setting (in the Scan Order tab of Component Configuration */
    CapSense_Start();

    /* 3. Initialize Proximity baseline */
    CapSense_InitializeSensorBaseline(CapSense_PROXIMITYSENSOR0__PROX);
    CapSense_InitializeSensorBaseline(CapSense_PROXIMITYSENSOR1__PROX);
    //PWM_Start();

    for(;;)
    {
        if(CapSense_IsBusy() == 0)
        { 
             /* Update proximity sensor baseline */
            CapSense_UpdateSensorBaseline(CapSense_PROXIMITYSENSOR0__PROX);
            CapSense_UpdateSensorBaseline(CapSense_PROXIMITYSENSOR1__PROX);
            /* Check if proximity sensor is active - thresholds are dynamically calculated during run-time
                proximityActive variable will have a non-zero value if Proximity was active */
              uint8_t value1  = CapSense_CheckIsSensorActive(CapSense_PROXIMITYSENSOR0__PROX);
              uint8_t value2  = CapSense_CheckIsSensorActive(CapSense_PROXIMITYSENSOR1__PROX);
            /* Process output if proximity sensor was active */

             LED_Write(~value1);         
            /* Trigger the next Scan of proximity sensor */
            CapSense_ScanSensor(CapSense_PROXIMITYSENSOR0__PROX);

        }
        

    }
}

/* [] END OF FILE */

Credits

ashokr

Hello! I’m Ashok. I’m currently working as software engineer. passionate about doing Hobbies Projects and Animations works.

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Psoc4 - Touch Me Not Car

About the project

Project info