Due to parts and components going obsolete and becoming unavailable, the 1057_3B has moved to a new processor that is not supported under Phidget21. If you're using our old libraries you must upgrade to Phidget22 before you can make use of this Phidget. If you are using Phidget21, the 1057_2 is still available.
The PhidgetEncoder Highspeed interfaces with any 5V quadrature encoder. A quadrature encoder is the most commonly used feedback device for a DC or stepper motor. With an encoder, you can keep track of how far your motor has turned, which then allows you to control the position and velocity in your code. This Phidget connects to your computer via USB.
Encoders measure the movement of mechanical parts. This guide discusses how
Board Properties | |
---|---|
Controlled By | USB (Mini-USB) |
API Object Name | Encoder |
Encoder Interface | |
Number of Encoder Inputs | 1 |
Count Rate Max | 1E+06 pulses/s |
Encoder Interface Resolution | x4 |
Sampling Interval Min | 0.008 s/sample |
Sampling Interval Max | 1 s/sample |
Encoder Input Low Voltage Max | 1.7 V DC |
Encoder Input High Voltage Min | 2.1 V DC |
Pull-down Resistance (Line Driver) | 2.2 kΩ or 10 kΩ |
Pull-up Resistance (Open Collector) | 2.2 kΩ or 10 kΩ |
USB Speed | High Speed |
Electrical Properties | |
Current Consumption Max | 500 mA |
Current Consumption Min | 55 mA |
USB Voltage Min | 4.5 V DC |
USB Voltage Max | 5.3 V DC |
Physical Properties | |
Operating Temperature Min | -40 °C |
Operating Temperature Max | 85 °C |
Customs Information | |
Canadian HS Export Code | 8471.80.00 |
American HTS Import Code | 8471.80.40.00 |
Country of Origin | CN (China) |
Date | Board Revision | Device Version | Packaging Revision | Comment |
---|---|---|---|---|
January 2005 | 0 | 300 | Product Release | |
November 2009 | 1 | 302 | Increased pull-up resistance from 1kO to 2.2kO | |
January 2010 | 2 | 302 | Replaced USB connector with Mini-USB connector, made board slightly smaller. | |
January 2018 | 2 | 302 | B | Removed cables from packaging. |
June 2021 | 3 | 400 | B | Added IOMode support. Updated obsolete components on board; no longer supports Phidget21 |
May 2023 | 3 | 401 | B | USB bug fixes |