Products for USB Sensing and Control
Products for USB Sensing and Control

PhidgetEncoder HighSpeed

ID: 1057_1

Read one encoder at speeds of up to 500,000 quadrature cycles per second. Connects directly to USB.

Replaced by 1057_2B

Replaced by the 1057 - PhidgetEncoderHighSpeed.

The PhidgetEncoder HighSpeed connects to any typical two-bit optical encoder and can return up to 500,000 counts per second. Specifically it reads a standard incremental non-differential TTL encoder.

The 1057 can be used to measure shaft speed or as a very accurate human input device. If you just need a simple human input device have a look at the 1052 PhidgetEncoder.

With it you can:

  • Detect changes in incremental position
  • Easily track changes with respect to time

Comes packaged with

Maximum Count Rate 500000 counts/second
Internal Output Pull-Up Resistance 2.2kΩ
Min/Max USB Supply Voltage 4.75 – 5.25VDC
Encoder Input Low Voltage <0.8V
Encoder Input High Voltage >3.6V
Device Quiescent Current Consumption 20mA (no encoder attached)
Device Active Current Consumption 100mA max
Operating Temperature 0 - 70°C


Software Objects

Device Object Name Channel
Encoder Input Encoder 0

If you need an encoder have a look at our:


Previous Versions of the 1057

Documents


Code Samples

Language:

APIDetailLanguageOS
Encoder C Multiple Download
Encoder C# Windows Download
Encoder Java Multiple Download
Encoder Java Android Download
Encoder JavaScript Nodejs Download
Encoder JavaScript Browser Download
Encoder Objective-C macOS Download
Encoder Swift macOS Download
Encoder Swift iOS Download
Encoder Python Multiple Download
Encoder Visual Basic .NET Windows Download
Encoder Max/MSP Multiple Download

Product History

Date Board Revision Device Version Comment
January 2005 0300Product Release
April 2007 0301Added index channel
November 20091302Increased pull-up resistance from 1kO to 2.2kO
January 2010 2302Replaced USB connector with Mini-USB connector, made board slightly smaller.


Getting Started

Welcome to the 1057 user guide! In order to get started, make sure you have the following hardware on hand:


Next, you will need to connect the pieces:

1057 2 Connecting The Hardware.jpg
  1. Connect the encoder to the PhidgetEncoder's input.
  2. Connect the PhidgetEncoder to your computer using the USB cable.


Now that you have everything together, let's start using the 1057!


Using the 1057

Phidget Control Panel

In order to demonstrate the functionality of the 1057, 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.

Windows

To open the Phidget Control Panel on Windows, find the Ph.jpg icon in the taskbar. If it is not there, open up the start menu and search for Phidget Control Panel

Windows PhidgetTaskbar.PNG

macOS

To open the Phidget Control Panel on macOS, open Finder and navigate to the Phidget Control Panel in the Applications list. Double click on the Ph.jpg icon to bring up the Phidget Control Panel.


For more information, 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 1057.

First Look

After plugging the 1057 into your computer and opening the Phidget Control Panel, you will see something like this:

1057 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.

Encoder

Double-click on the Encoder object, labelled PhidgetEncoder HighSpeed, in order to run the example:

1057 Encoder 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:

  • Position Change: the number of ticks (or quadrature cycles) that have occurred since the last change event.
  • Time Change: the amount of time in milliseconds that has elapsed since the last change event.
  • Position: the total position in ticks relative to where the encoder was when the window was opened.
  • Index Position: the position where the index channel was last encountered. Some encoders do not support index, check your encoder's datasheet for more information.
  • Velocity: the average velocity in rotations per second. A CPR must be specified to enable this functionality.
  • Specify a counts per revolution (CPR) value to enable velocity calculation.

Finding The Addressing Information

Before you can access the device in your own code, and from our examples, you'll need to take note of the addressing parameters for your Phidget. These will indicate how the Phidget is physically connected to your application. For simplicity, these parameters can be found by clicking the button at the top of the Control Panel example for that Phidget.

The locate Phidget button is found in the device information box

In the Addressing Information window, the section above the line displays information you will need to connect to your Phidget from any application. In particular, note the Channel Class field as this will be the API you will need to use with your Phidget, and the type of example you should use to get started with it. The section below the line provides information about the network the Phidget is connected on if it is attached remotely. Keep track of these parameters moving forward, as you will need them once you start running our examples or your own code.

All the information you need to address your Phidget

Using Your Own Program

You are now ready to start writing your own code for the device. The best way to do that is to start from our examples:

This Phidget is compatible with the Encoder Examples.

Once you have your example, you will need to follow the instructions on the page for your programming language to get it running. To find these instructions, select your programming language from the Software Overview page.

Technical Details

General

The 1057 can be used with a wide assortment of mechanical and optical encoders. The encoder should be of quadrature output type, indicating that there will be two output channels (usually labeled A and B). Specifically, the 1057 reads a standard incremental non-differential TTL encoder.


The maximum rate of the 1057 is specified at 500,000 cycles per second. In your application, this number relates directly to the number of revolutions per second you wish to measure, and the number of counts per revolution specified for your encoder. If your encoder's wheel has 1000 counts per revolution, then the limit on measurable revolutions per second is 500, or 30,000rpm (which, for the 1057, corresponds to 2000 position changes in software per second).

Choosing Encoders

Both mechanical and optical encoders are available, with optical encoders prevailing in quality at higher revolution speeds. Review the data sheet for the encoder that your are selecting carefully before purchasing it to ensure it is compatible with the 1057. Almost any incremental quadrature encoder will work but it is important to verify this before connecting it. Absolute encoders will not work with this device. Warning: The 1057 incorporates a 1kOhm pull-up resistor on each line from the encoder input connector. Some encoders will not be able to sink enough current to reliably signal to the 1057. They may work initially, or not at all.

We have reviewed the following encoders, and found that they can be used with the 1057. This is not meant to be a comprehensive list but should be used as a comparison with other encoders.


Manufacturer Web Page Part Number
Grayhill www.Grayhill.com Series 63R, Series 61R Series 63Q TTL Output
US Digital (Recommended) www.USDigital.com S4, S5, E2, E3, E4, E4P, etc.
Avago Technologies (Formerly Agilent) www.avagotech.com HEDS 5500
CUI Inc. www.cui.com AMT103-V


Connectors

The encoder input on the 1057 uses a 5-pin, 0.100 inch pitch locking connector. The connectors are commonly available - refer to the Table below for manufacturer part numbers.


Manufacturer Part Number Description
Molex 50-57-9405 5 Position Cable Connector
Molex 16-02-0102 Wire Crimp Insert for Cable Connector
Molex 70543-0004 5 Position Vertical PCB Connector
Molex 70553-0004 5 Position Right-Angle PCB Connector (Gold)
Molex 70553-0039 5 Position Right-Angle PCB Connector (Tin)
Molex 15-91-2055 5 Position Right-Angle PCB Connector - Surface Mount


Note: Most of the above components can be bought at Digikey.

Connector Pinout Diagram

1057 2 Functional.jpg


Further Reading

If you want to know more about encoders, check out the Encoder 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
Encoder Input Encoder 0

API


Back Forward
Print this API