Products for USB Sensing and Control

Products for USB Sensing and Control

PhidgetTextLCD 20X2 : White : Integrated PhidgetInterfaceKit 8/8/8

ID: 1203_0
A 1018 with a 2-line by 20-character White Backlit LCD Display.

Replaced by 1203_2

Replaced by the 1203 - PhidgetTextLCD 20X2:White:Integrated PhidgetInterfaceKit 8/8/8.

This Phidget integrates a 20X2 PhidgetTextLCD, and an PhidgetInterfaceKit 8/8/8 - 8 Analog Inputs, 8 Digital Inputs and 8 Digital Outputs. You can choose from White, Blue, and Green displays.

A custom USB cable (included) is all that is required to control and power this device.

Product History

Date Board Revision Device Version Comment
July 2005 0120 Product Release
February 2010 2200Added RC filtering to digital inputs, Configurable speed per analog input. Replaced USB connector with Mini-USB connector.
April 2010 2201fixed data clear on ratiometric switch, fixed overflow report for inputs 2-7
September 2010 2202fixed bug in output set
May 2011 2203getLabelString fixed for labels longer than 7 characters
February 2013 2204USB stack changes; was unstable with lots of set reports

Getting Started

Welcome to the 1203 user guide! In order to get started, make sure you have the following hardware on hand:

  • 1203 Phidget TextLCD
  • USB cable and computer
  • something to use with the 1203 (e.g. sensors, LEDs, switches, etc.)


Next, you will need to connect the pieces:

1203 2 Connecting The Hardware.jpg
  1. Connect any sensors to the voltage inputs on the 1023.
  2. Connect a switch or a piece of wire connecting ground to one of the digital input terminals.
  3. Connect an LED to one of the Digital Outputs by inserting the long LED wire into the digital output 0 and the shorter wire into Ground.
  4. Connect the 1203 TextLCD to the computer using a USB cable.


Now that you have everything together, let's start using the 1203!

Using the 1203

Phidget Control Panel

In order to demonstrate the functionality of the 1203, the Phidget Control Panel running on a Windows machine will be used.


The Phidget Control Panel is available for use on both macOS and Windows machines. If you would like to follow along, first take a look at the getting started guide for your operating system:


Linux users can follow the getting started with Linux guide and continue reading here for more information about the 1203.

First Look

After plugging the 1203 into your computer and opening the Phidget Control Panel, you will see something like this:

1203 Panel.jpg


The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:

  • Serial number: allows you to differentiate between similar Phidgets.
  • Channel: allows you to differentiate between similar objects on a Phidget.
  • Version number: corresponds to the firmware version your Phidget is running. If your Phidget is listed in red, your firmware is out of date. Update the firmware by double-clicking the entry.


The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.

Text LCD

Double-click on the LCD object, labelled Phidget TextLCD 20X2, in order to run the example:

1203 TextLCD Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Write in the Display text text boxes, your input will be mirrored on the LCD screen.
  • Drag the Contrast and Brightness sliders to a level where you can clearly see the text on the screen.
  • Toggle the Cursor and Cursor Blink checkbox to view the current cursor position on the LCD screen.
  • Toggle Custom Characters to show an example of the 1203 using bitmaps.
  • Use the Clear button to clear the screen.


Voltage Input

Double-click on a Voltage Input object in order to run the example:

1203 VoltageInputSensor Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.
  • If you have an analog sensor connected that you bought from us, you can select it from the Sensor Type drop-down menu. The example will then convert the voltage into a more meaningful value based on your sensor, with units included, and display it beside the Sensor Value label. Converting voltage to a Sensor Value is not specific to this example, it is handled by the Phidget libraries, with functions you have access to when you begin developing!


Voltage Ratio Input

Double-click on a Voltage Ratio Input object in order to run the example:

1203 VoltageRatioSensor Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • The voltage ratio is reported in Volts per Volt. For example, if the Phidget is providing 5V and the sensor is sending back 2.5V, the ratio will be 0.5V/V.
  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.
  • If you have an analog sensor connected that you bought from us, you can select it from the Sensor Type drop-down menu. The example will then convert the voltage into a more meaningful value based on your sensor, with units included, and display it beside the Sensor Value label. Converting voltage to a Sensor Value is not specific to this example, it is handled by the Phidget libraries, with functions you have access to when you begin developing!


Digital Input

Double-click on a Digital Input object in order to run the example:

1203 DigitalInput Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • This is an active-low device, therefore, it will be true when connected to ground, and false when connected to a high voltage.

Digital Output

Double-click on a Digital Output object in order to run the example:

1203 DigitalOutput Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Toggle the state of the digital output by pressing the button.


Technical Details

If you want to know more about the input/output capabilities of the 1203, check the Digital Input Primer, InterfaceKit Digital Outputs page, and the Analog Input Primer. For more information about the LCD screen, see the LCD Primer.

What to do Next

  • Software Overview - Find your preferred programming language here to learn how to write your own code with Phidgets!
  • General Phidget Programming - Read this general guide to the various aspects of programming with Phidgets. Learn how to log data into a spreadsheet, use Phidgets over the network, and much more.
  • Phidget22 API - The API is a universal library of all functions and definitions for programming with Phidgets. Just select your language and device and it'll give you a complete list of all properties, methods, events, and enumerations that are at your disposal.

Software Objects

Channel NameAPIChannel
PhidgetInterfaceKit 8/8/8
Voltage Input VoltageInput 0 - 7
Voltage Ratio Input VoltageRatioInput 0 - 7
Digital Input DigitalInput 0 - 7
Digital Output DigitalOutput 0 - 7
PhidgetTextLCD 20X2
Text LCD LCD 0

API


Back Forward
Print this API