Difference between revisions of "LED1000 User Guide"
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Latest revision as of 16:31, 17 October 2019
- 1 Getting Started
- 2 Using the LED1000
- 3 Technical Details
- 4 What to do Next
Welcome to the LED1000 user guide! In order to get started, make sure you have the following hardware on hand:
Next, you will need to connect the pieces:
- Connect the LED1000 to the VINT Hub using the Phidget cable.
- Connect some LEDs to the LED Phidget's ports.
- Connect the VINT Hub to your computer with a USB cable.
Now that you have everything together, let's start using the LED1000!
Using the LED1000
Phidget Control Panel
In order to demonstrate the functionality of the LED1000, 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.
To open the Phidget Control Panel on Windows, find the icon in the taskbar. If it is not there, open up the start menu and search for Phidget Control Panel
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 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 LED1000.
After plugging the LED1000 into your computer and opening the Phidget Control Panel, you will see something like this:
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 If your Phidget is listed in red, your firmware is out of date.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.
Digital Output (LED)
Double-click on a Digital Output object, labelled LED Driver, in order to run the example:
General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:
- From the Forward Voltage drop-down menu, select the appropriate voltage for your LED. It is recommended to set the forward voltage to the first setting above the maximum voltage specified by your LED's datasheet.
- Use the Current Limit slider to set an appropriate limit for your LED. The current limit will be specified in your LED's datasheet.
- Use the large button to toggle power to the LED.
- Use the Duty Cycle slider to precisely control the amount of power supplied to the LED.
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.
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.
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 Code Samples.
Select your programming language of choice from the drop-down list to get an example for your device. You can use the options provided to further customize the example to best suit your needs.
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 Programming Languages page.
The LED1000 uses two controller chips that allow you to vary the current and voltage supplied to each channel. It uses pulse-width modulation to vary the brightness of each LED.
Multiple LEDs on a Single Channel
You can have multiple LEDs hooked up to a single channel on the LED1000, (for example, a short string of LEDs) to reduce the amount of wiring, although keep in mind that you won't be able to control the lights individually. When using multiple LEDs on a single channel, you may need to increase the voltage limit for that channel. If the LEDs are too dim at the maximum voltage, you should spread them out to other channels.
If you're using high-current LEDs, you should spread your load evenly across the board to avoid having one of the controller chips overheat. There are two controller chips, each controlling the channels on one half of the board.
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Board Connector Diagram
The connector used on the LED1000 is a Molex 70543-0003. The mating connector used on our LED cables is the Molex 50-57-9404.
For more information, take a look at the LED Primer.
What to do Next
- Programming Languages - Find your preferred programming language here and learn how to write your own code with Phidgets!
- Phidget Programming Basics - Once you have set up Phidgets to work with your programming environment, we recommend you read our page on to learn the fundamentals of programming with Phidgets.