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Igvier Button Pusher

Made by rasterman101 / Games & Gaming / Robotics

About the project

I needed help testing parts that have tiny leads using a micro-ohmmeter.

Project info

Difficulty: Moderate

Platforms: Arduino

Estimated time: 7 hours

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

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Items used in this project

Hardware components

	Arduino Uno - R3	x 1
	Duel 5V Channel DC 5V Relay Module	x 1
	LM317t Drop 12v to 8.0V	x 1
	220 ohm Resistor 1/4 Watt For the LM317	x 1
	1200 ohm resistor 1/4 Watt For the LM317	x 1
	VS10N031C snap-action-normally-open switch with 53.975mm lever Back and forth switch	x 2
	LA-T8-12-15-30/85-64 Mini Linear Actuator	x 1
	Momentary Foot Switch : 30-17090 Activates the actuator	x 1
	Perforated board for various components	x 1
	Brackets cut from broke computer power supply Cut up brackets from an old PS chassis	x 1
	12V AC/DC Power adapter	x 1
	DC Female 2.1 x 5.5mm Power Connector Plugin for the regulator and Arduino UNO	x 2
	Momentary button from old computer chassis For the calibration. Pushes actuator forward till footswitch pressed	x 1
	Various connectors, wires, screws, nuts, lock-washers, glue gun, ty-raps, wood base, take and foam found on the floor. Hold down components and foam is a pad for the actuator to the meter button.	x 1

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Software apps and online services

Arduino

Hand tools and fabrication machines

	Dremel to cut aluminum	x 1
	glue gun hold down parts	x 1
	solder iron	x 1
	Calculator	x 1

Story

I needed help testing parts that have tiny leads using a micro-ohmmeter. (Cannot use J-hooks! “Micro-ohms.”) The micro-ohmmeter does not have a GPIB or rs232 interface, purchasing an interface card cost too much, and asking for help can be expensive, aggravating, and time-consuming. I have been using my elbow to push a button while I hold the probes on tiny leads. That has not worked out well.

Anyway, I needed some form of assistance to test the parts so, I made a button-pusher called the Igvier. …got a-lot of laughs but, sometimes the stupidest ideas can be the greatest cost and time saver as well as personal reward.

Schematics, diagrams and documents

Igvier Button Pusher

CAD, enclosures and custom parts

Code

Igvier Button Pusher

Simple digital io.

#include <Arduino.h>

boolean bool_OUT_IN1 = false;
boolean bool_OUT_IN2 = false;

const int MTR_OUT_IN1 = 4;
const int MTR_OUT_IN2 = 5;

const int BTN_OUT_IN1 = 8;
const int BTN_OUT_IN2 = 9;


const int SW_ACTR_FORWARD = 10;
const int SW_ACTR_REVERSE = 11;

const int cal_led = 7;


void setup() {                                  // begin

  Serial.begin( 9600 );
  
  pinMode( BTN_OUT_IN1, INPUT_PULLUP );
  pinMode( BTN_OUT_IN2, INPUT_PULLUP );
  pinMode( MTR_OUT_IN1, OUTPUT );
  pinMode( MTR_OUT_IN2, OUTPUT );

  pinMode( SW_ACTR_FORWARD, INPUT_PULLUP );
  pinMode( SW_ACTR_REVERSE, INPUT_PULLUP );

  pinMode( cal_led, OUTPUT );  
}// End Setup


void loop() {

  // Has the foot swithc been pressed.
  if ((digitalRead(BTN_OUT_IN1) == 0) and (digitalRead(BTN_OUT_IN2) == 1) and (digitalRead(SW_ACTR_FORWARD) == 1))      // In
  {
    // Forward motor on untile forward switch is pushed.
    do {
      digitalWrite( MTR_OUT_IN2, LOW );             // Make sure motor reverse is off.
      digitalWrite( MTR_OUT_IN1, HIGH );            // Turn on motor forward.
    } while (digitalRead( SW_ACTR_FORWARD ) == 1 ); // Keep running forward until forward switch is pushed.
    
    // Move in the Reverse direction until the reverse switch is pushed.
    do {
      digitalWrite( MTR_OUT_IN1, LOW );             // Make sure motor forward is off.
      digitalWrite( MTR_OUT_IN2, HIGH );            // Turn on reverse motor.
    } while (digitalRead( SW_ACTR_REVERSE ) == 1 ); // Keep running reverse until reverse switch is pushed.
    
    // Be sure both motors are off.
    digitalWrite( MTR_OUT_IN2, LOW );               // Be sure motor reverse is off
    digitalWrite( MTR_OUT_IN1, LOW );               // Be sure motor forward is off
    
    // If the foot switch is held down, hold here till released.
    while (digitalRead( BTN_OUT_IN1) == 0 ){
      delay(80);                                    // Hold just for the heck of it and maybe bounce.      
    }//END while
  }// END start if statement



  // Move and hold for calibration.
  // This moves the motor forward until forward switch is pushed.
  if ((digitalRead(BTN_OUT_IN1) == 1) and (digitalRead(BTN_OUT_IN2) == 0))
  {
    digitalWrite( cal_led, HIGH );
    delay( 80 );
    // If button is heald, wait for release
    do{                                             // If button is heald, wait      
    } while( digitalRead(BTN_OUT_IN2) == 0 );

    // Move the actuator forward until the forward actuator has been clicked
    do{
      Serial.println( "Move Forward" );      
      digitalWrite( MTR_OUT_IN2, LOW );             // Keep reverse low      
      digitalWrite( MTR_OUT_IN1, HIGH );            // Move forward      
    } while ( digitalRead(SW_ACTR_FORWARD) == 1 );  // Hold until the forward actuator is clicked

    // Be sure both motors are off.
    digitalWrite( MTR_OUT_IN2, LOW );               // Be sure motor reverse is off
    digitalWrite( MTR_OUT_IN1, LOW );               // Be sure motor forward is off
    
    // Hold here until setup conplete and BTN_OUT_IN1 has been pressed
    do {
      Serial.println( "Button Hold" ); 
    } while (digitalRead( BTN_OUT_IN1) == 1 );      // Hold until BTN_OUT_IN1 has been pressed

    // Move the actuator back to reverse position
    do{
      Serial.println( "Move Back" ); 
      digitalWrite( MTR_OUT_IN1, LOW );             // Keep forward low
      digitalWrite( MTR_OUT_IN2, HIGH );            // Move reverse
    } while ( digitalRead(SW_ACTR_REVERSE) == 1 );  // Hold until the reverse actuator is clicked

    // Be sure both motors are off.
    digitalWrite( MTR_OUT_IN2, LOW );               // Be sure motor reverse is off
    digitalWrite( MTR_OUT_IN1, LOW );               // Be sure motor forward is off
    digitalWrite( cal_led, LOW );
  } // END CALIBRATION
}// END LOOP

Credits

rasterman101

Have been in test and troubleshooting of various systems for over 30 years.

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