{"id":7134,"date":"2021-11-10T03:26:43","date_gmt":"2021-11-09T20:26:43","guid":{"rendered":"https:\/\/www.phidgets.com\/education\/?page_id=7134"},"modified":"2023-03-14T03:13:47","modified_gmt":"2023-03-13T20:13:47","slug":"tare","status":"publish","type":"page","link":"https:\/\/www.phidgets.com\/education\/learn\/projects\/scale-kit\/tare\/","title":{"rendered":"Tare\/Units Scale Kit"},"content":{"rendered":"

[et_pb_section fb_built=”1″ _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ custom_padding=”||0px|” z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”3″ _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Tare\/Units – Scale Kit” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n

Projects<\/a> <\/div>\n

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Tare\/Units – Scale Kit<\/h1>\n

[\/et_pb_code][et_pb_code admin_label=”Description” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]Use the Getting Started Kit to add extra functionality to your Scale Kit!<\/pee>[\/et_pb_code][et_pb_code admin_label=”ph-button-cta: Start” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”] <\/p>\n

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Start<\/a>[\/et_pb_code][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/www.phidgets.com\/education\/wp-content\/uploads\/2022\/09\/tareunits_title3.jpg.jpg” _builder_version=”4.18.0″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ use_custom_gutter=”on” gutter_width=”3″ specialty=”on” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column type=”1_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”ph-vertical-nav” _builder_version=”4.19.5″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ hover_enabled=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” saved_tabs=”all” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n

Parts<\/a> Setup<\/a> Taring Scale<\/a> Write Code<\/a> Changing Units<\/a> Practice<\/a><\/div>\n

[\/et_pb_code][\/et_pb_column][et_pb_column type=”3_4″ specialty_columns=”3″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_row_inner module_id=”parts” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Parts” module_id=”setup” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n

Parts<\/h2>\n

Before getting started, make sure you have the following parts.<\/pee>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=”1_3,1_3,1_3″ _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ custom_padding=”||0px|” z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner type=”1_3″ saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Part: scale kit” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n

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Kits\/<\/a> Kit4015<\/a> <\/div>\n

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Phidget Scale Kit<\/h3>\n

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[\/et_pb_code][\/et_pb_column_inner][et_pb_column_inner type=”1_3″ saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Part: GSK” _builder_version=”4.18.0″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_module=”8489″ saved_tabs=”all” global_colors_info=”{}”]<\/p>\n

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Kit\/<\/a> Getting Started Kit<\/a> <\/div>\n

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Getting Started Kit<\/h3>\n

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[\/et_pb_code][\/et_pb_column_inner][et_pb_column_inner type=”1_3″ saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text admin_label=”Space” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ text_text_shadow_horizontal_length_tablet=”0px” text_text_shadow_vertical_length_tablet=”0px” text_text_shadow_blur_strength_tablet=”1px” link_text_shadow_horizontal_length_tablet=”0px” link_text_shadow_vertical_length_tablet=”0px” link_text_shadow_blur_strength_tablet=”1px” ul_text_shadow_horizontal_length_tablet=”0px” ul_text_shadow_vertical_length_tablet=”0px” ul_text_shadow_blur_strength_tablet=”1px” ol_text_shadow_horizontal_length_tablet=”0px” ol_text_shadow_vertical_length_tablet=”0px” ol_text_shadow_blur_strength_tablet=”1px” quote_text_shadow_horizontal_length_tablet=”0px” quote_text_shadow_vertical_length_tablet=”0px” quote_text_shadow_blur_strength_tablet=”1px” header_text_shadow_horizontal_length_tablet=”0px” header_text_shadow_vertical_length_tablet=”0px” header_text_shadow_blur_strength_tablet=”1px” header_2_text_shadow_horizontal_length_tablet=”0px” header_2_text_shadow_vertical_length_tablet=”0px” header_2_text_shadow_blur_strength_tablet=”1px” header_3_text_shadow_horizontal_length_tablet=”0px” header_3_text_shadow_vertical_length_tablet=”0px” header_3_text_shadow_blur_strength_tablet=”1px” header_4_text_shadow_horizontal_length_tablet=”0px” header_4_text_shadow_vertical_length_tablet=”0px” header_4_text_shadow_blur_strength_tablet=”1px” header_5_text_shadow_horizontal_length_tablet=”0px” header_5_text_shadow_vertical_length_tablet=”0px” header_5_text_shadow_blur_strength_tablet=”1px” header_6_text_shadow_horizontal_length_tablet=”0px” header_6_text_shadow_vertical_length_tablet=”0px” header_6_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner module_id=”setup” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Setup” module_id=”setup” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n

Setup<\/h2>\n

[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=”1_2,1_2″ disabled_on=”on|on|on” admin_label=”Row” _builder_version=”4.18.0″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” disabled=”on” global_colors_info=”{}”][et_pb_column_inner type=”1_2″ saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Step 1″ _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n

Step 1<\/h3>\n

Connect your Wheatstone Bridge Phidget to Hub Port 2 as shown in the images.<\/pee>If you haven’t used your Getting Started Kit yet, first complete the Getting Started Kit tutorial<\/a>.<\/i><\/pee>[\/et_pb_code][\/et_pb_column_inner][et_pb_column_inner type=”1_2″ saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_gallery gallery_ids=”7144,7146″ fullwidth=”on” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ title_text_shadow_horizontal_length_tablet=”0px” title_text_shadow_vertical_length_tablet=”0px” title_text_shadow_blur_strength_tablet=”1px” caption_text_shadow_horizontal_length_tablet=”0px” caption_text_shadow_vertical_length_tablet=”0px” caption_text_shadow_blur_strength_tablet=”1px” pagination_text_shadow_horizontal_length_tablet=”0px” pagination_text_shadow_vertical_length_tablet=”0px” pagination_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” box_shadow_horizontal_image_tablet=”0px” box_shadow_vertical_image_tablet=”0px” box_shadow_blur_image_tablet=”40px” box_shadow_spread_image_tablet=”0px” text_shadow_horizontal_length_tablet=”0px” text_shadow_vertical_length_tablet=”0px” text_shadow_blur_strength_tablet=”1px” global_colors_info=”{}”][\/et_pb_gallery][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=”1_2,1_2″ admin_label=”Row” _builder_version=”4.16″ global_colors_info=”{}”][et_pb_column_inner type=”1_2″ saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Step 1″ _builder_version=”4.18.0″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n

Step 1<\/h3>\n

Connect your Wheatstone Bridge Phidget to Hub Port 3 as shown in the images.<\/pee>If you haven’t used your Getting Started Kit yet, first complete the Getting Started Kit tutorial<\/a>.<\/i><\/pee>[\/et_pb_code][\/et_pb_column_inner][et_pb_column_inner type=”1_2″ saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/www.phidgets.com\/education\/wp-content\/uploads\/2022\/09\/kit4003_2_scaleconnection.jpg” show_in_lightbox=”on” align=”center” _builder_version=”4.18.0″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner module_id=”taring” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Taring Scale” module_id=”setup” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n

Taring Scale<\/h2>\n

In this section, you will create a taring functionality for your scale by using the red button.<\/pee> Taring a scale will reset the output to 0. This is useful for a variety of reasons. For example, if you were measuring the weight of a liquid, you could place a container on your scale, tare the scale (reset output to 0), and then simply measure the amount of liquid you need.<\/pee>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner disabled_on=”off|off|off” admin_label=”Row” module_id=”write-code” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=” (invisible anchor)” module_id=”move” module_class=”ph-hidden-anchor” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner module_class=”ph-user-java” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Write code Java” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n

Write code (Java)<\/h2>\n

Copy the code below into a new Java project. If you need a reminder of how to do this, revisit the Getting Started Course.<\/a>Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample – Eclipse” module_class=”ph-user-eclipse” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n

  import com.phidget22.*;public class TareUnits {        \/\/Define    static VoltageRatioInput scale;    static DigitalInput tareButton;        public static double tareScale()throws Exception{        double average = 0;        int count = 0;        \/\/Set data interval to minimum so we can get data faster        scale.setDataInterval(scale.getMinDataInterval());        System.out.println(\"Taring Scale...\");        while(count < 32){            average += scale.getVoltageRatio();            count += 1;            Thread.sleep(20);        }        \/\/Reset data interval        scale.setDataInterval(250);        return average\/count;    }            public static void main(String[] args) throws Exception{        \/\/Create        scale = new VoltageRatioInput();        tareButton = new DigitalInput();                \/\/Address        tareButton.setHubPort(0);        tareButton.setIsHubPortDevice(true);                \/\/Open        scale.open(1000);        tareButton.open(1000);                \/\/Offset value        double offsetValue = 0.0;                \/\/Automatically tare scale        offsetValue = tareScale();                \/\/Use your Phidgets        while(true){            \/\/Calculate Weight (kg)            double weight = 4700 * (scale.getVoltageRatio() - offsetValue);                        \/\/Display Weight            System.out.println(String.format(\"%.3f kg\", weight));                            if(tareButton.getState()){                offsetValue = tareScale();            }                        Thread.sleep(250);        }    }    }  <\/code><\/pre>\n
[\/et_pb_code][et_pb_code admin_label=”Code Sample – Netbeans” module_class=”ph-user-netbeans” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
  package tareunits;import com.phidget22.*;public class TareUnits {        \/\/Define    static VoltageRatioInput scale;    static DigitalInput tareButton;        public static double tareScale()throws Exception{        double average = 0;        int count = 0;        \/\/Set data interval to minimum so we can get data faster        scale.setDataInterval(scale.getMinDataInterval());        System.out.println(\"Taring Scale...\");        while(count < 32){            average += scale.getVoltageRatio();            count += 1;            Thread.sleep(20);        }        \/\/Reset data interval        scale.setDataInterval(250);        return average\/count;    }            public static void main(String[] args) throws Exception{        \/\/Create        scale = new VoltageRatioInput();        tareButton = new DigitalInput();                \/\/Address        tareButton.setHubPort(0);        tareButton.setIsHubPortDevice(true);                \/\/Open        scale.open(1000);        tareButton.open(1000);                \/\/Offset value        double offsetValue = 0.0;                \/\/Automatically tare scale        offsetValue = tareScale();                \/\/Use your Phidgets        while(true){            \/\/Calculate Weight (kg)            double weight = 4700 * (scale.getVoltageRatio() - offsetValue);                        \/\/Display Weight            System.out.println(String.format(\"%.3f kg\", weight));                            if(tareButton.getState()){                offsetValue = tareScale();            }                        Thread.sleep(250);        }    }    }  <\/code><\/pre>\n
[\/et_pb_code][et_pb_code admin_label=”Code Sample – Processing” module_class=”ph-user-processing” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
  \/\/Add Phidgets Library import com.phidget22.*;\/\/DefineVoltageRatioInput scale;DigitalInput tareButton;double offsetValue = 0.0;double tareScale() throws Exception{  double average = 0;  int count = 0;  \/\/Set data interval to minimum so we can get data faster  scale.setDataInterval(scale.getMinDataInterval());  println(\"Taring Scale\");  while(count < 32){   average += scale.getVoltageRatio();   count += 1;   delay(20);  }  \/\/Reset data interval  scale.setDataInterval(250);  return average\/count;}void setup(){  try{        \/\/Create    scale = new VoltageRatioInput();    tareButton = new DigitalInput();        \/\/Address    tareButton.setHubPort(0);    tareButton.setIsHubPortDevice(true);       \/\/Open    scale.open(1000);    tareButton.open(1000);        \/\/Automatically tare scale    offsetValue = tareScale();          }catch(Exception e){    \/\/Handle Exceptions    e.printStackTrace();  }}void draw(){  try{        \/\/Use your Phidgets    \/\/Calculate Weight (kg)    double weight = 4700 * (scale.getVoltageRatio() - offsetValue);        \/\/Display Weight    println(String.format(\"%.3f kg\", weight));        \/\/Tare Scale    if(tareButton.getState()){      offsetValue = tareScale();    }    delay(250);      }catch(Exception e){    \/\/Handle Exceptions    e.printStackTrace();  }}  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner module_class=”ph-user-python” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Write code Python” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n
Write Code (Python)<\/h2>\n
Copy the code below into a new Python project. If you need a reminder of how to do this, revisit the Getting Started Course.<\/a>Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
  #Add Phidgets Libraryfrom Phidget22.Phidget import *from Phidget22.Devices.VoltageRatioInput import *from Phidget22.Devices.DigitalInput import *#Required for sleep statementimport timedef tareScale():    average = 0    count = 0    print(\"Taring Scale...\\n\")        #Set data interval to minimum so we can get data faster    scale.setDataInterval(scale.getMinDataInterval())    while(count < 32):        average += scale.getVoltageRatio()        count += 1        time.sleep(0.02)    #Reset data interval        scale.setDataInterval(250)    return average\/count    #Createscale = VoltageRatioInput()tareButton = DigitalInput()#AddresstareButton.setHubPort(0)tareButton.setIsHubPortDevice(True)#Openscale.openWaitForAttachment(1000)tareButton.openWaitForAttachment(1000)#Use your Offset ValueoffsetValue = 0#automatically tare scaleoffsetValue = tareScale()#Use your Phidgetswhile(True):    #Calculate Weight (kg)    weight = 4700 * (scale.getVoltageRatio() - offsetValue)    #Display Weight    print(\"%.3f kg\" % weight)        #tare scale    if(tareButton.getState()):        offsetValue = tareScale()        time.sleep(0.25)  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner module_class=”ph-user-csharp” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Write code C#” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
Write code (C#)<\/h2>\n
Copy the code below into a new C# project. If you need a reminder of how to do this, revisit the Getting Started Course.<\/a>Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
  using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using Phidget22;namespace TareUnits{    internal class Program    {        \/\/Define         static VoltageRatioInput scale;        static DigitalInput tareButton;        static double tareScale()        {            double average = 0;            int count = 0;            \/\/Set data interval to minimum so we can get data faster            scale.DataInterval = scale.MinDataInterval;            System.Console.WriteLine(\"Taring Scale ...\");            while (count < 32)            {                average += scale.VoltageRatio;                count += 1;                System.Threading.Thread.Sleep(20);            }            \/\/Reset data interval            scale.DataInterval = 250;            return average \/ count;        }        static void Main(string[] args)        {            \/\/Create            scale = new VoltageRatioInput();            tareButton = new DigitalInput();            \/\/Address            tareButton.HubPort = 0;            tareButton.IsHubPortDevice = true;            \/\/Open            scale.Open(1000);            tareButton.Open(1000);            \/\/Scale offset            double offsetValue = 0.0;            \/\/Automatically tare scale            offsetValue = tareScale();            \/\/Use your Phidgets            while (true)            {                \/\/Calculate Weight (kg)                double weight = 4700 * (scale.VoltageRatio - offsetValue);                \/\/Display Weight                System.Console.WriteLine(weight.ToString(\"F3\") + \" kg\");                if (tareButton.State)                {                    offsetValue = tareScale();                }                System.Threading.Thread.Sleep(250);            }        }    }}  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner module_class=”ph-user-swift” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Write code Swift” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
Write code (Swift)<\/h2>\n
Copy the code below into a new Swift project. If you need a reminder of how to do this, revisit the Getting Started Course.<\/a>Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
  Code not available.  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Run Your Program” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
Run Your Program<\/h2>\n
Try running your program. Your scale will automatically tare itself to begin, and then every time you press the red button, it will re-tare itself.<\/pee>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner module_id=”units” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”Changing Units” module_id=”setup” _builder_version=”4.16″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
Changing Units<\/h2>\n
In this step, you will modify your code from the previous step and add unit-changing functionality. When a user presses the green button, your program should cycle between the following units:<\/pee> <\/p>\n