This project is read-only.
DreamCheekyLED is a Console / .NET driver for the Dream Cheeky Webmail Notifier ( It was created using the and is released under the Apache License V2.0

You can control the LED using either DreamCheekyLED.exe with command line arguments or via C#/VB/Powershell using the DreamCheekyUSB.DreamCheekyLED object. The code supports multiple devices and has options for blinking and fading. See below for command line examples or the DreamCheekyLED*.ps1 files for powershell examples.

If you are interested in how this works at a high level the general process is:

1. Create HidDevice object using HidLibrary.HidDevices.Enumerate (default VendorID=0x1D34 and ProductID=0x0004)

2. Send the following USB commands to initialize the device:
NOTE: These were found by using USBTrace to sniff the Dreamcheeky software and may vary
public static readonly byte[] init01 = new byte[9] { 0, 0x1F, 0x02, 0x00, 0x5F, 0x00, 0x00, 0x1F, 0x03 };
public static readonly byte[] init02 = new byte[9] { 0, 0x00, 0x02, 0x00, 0x5F, 0x00, 0x00, 0x1F, 0x04 };
public static readonly byte[] init03 = new byte[9] { 0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x05 };
public static readonly byte[] init04 = new byte[9] { 0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 };

3. Set desired color using following USB commands (or combinations of RGB for full color spectrum)
public static readonly byte[] cmd_Red = new byte[9] { 0, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x05 };
public static readonly byte[] cmd_Green = new byte[9] { 0, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x05 };
public static readonly byte[] cmd_Blue = new byte[9] { 0, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x1F, 0x05 };
public static readonly byte[] cmd_Off = new byte[9] { 0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x05 };
NOTE: The DreamCheekyLED intensity maxes out at 64, so 0xFF is the same as 0x40. This driver will scale the input values of each color componet (range 0-255) to the correct output (range 0-64).

4. The DreamCheekyUSB.LEDBase class has additional methods for Blinking, Fade In/Out/InOut, and converting system colors to RGB values.

Command Line Usage:

DreamCheekyLED.exe [device=...] [options] [rgb=xxx,xxx,xxx] [color=....]
[fade=...] [blink=...] [delay=xxxx] [off]

DreamCheekyLED.exe debug nopause color=red
DreamCheekyLED.exe debug nopause color=green fade=3000
DreamCheekyLED.exe debug nopause color=green fade="3000,in"
DreamCheekyLED.exe debug nopause color=blue blink=2
DreamCheekyLED.exe debug nopause color=blue blink="5,250"
DreamCheekyLED.exe debug nopause rgb="255,255,0" delay=5000 off
DreamCheekyLED.exe debug nopause color=yellow fade="3000,in" delay=5000 off

Device Path:
Optional, Defaults to first USB device with VID=0x1D34 and PID=0x0004
Example (VID,PID,Index): device="0x1D34,0x0004,0"
Example (Path): device="\\?\hid#vid1d34&pid0004#6&1067c3dc&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}"

debug = Print trace statements to Console.Out
test = Cycle Red/Green/Blue then fade Red/Green/Blue
testblink = test a few blink cycles
nopause = omit the 'Press enter to exit...' message at the end

Colors: (See )
Use rgb=xxx,xxx,xxx or one of the .NET System Colors
Example (yellow): rgb="255,255,0"
Example (System.Drawing.Color.Pink): color=DeepPink

Fade: set to fade in, out, or both
Makes the colors fade in or out instead of instantly on or off.
Example (Fade in and out in 2 seconds): color=Indigo fade=2000
Example (Fade in 1 second): color=Indigo fade="1000,in"
Example (Fade out 3 seconds): color=Indigo fade="3000,out"

Blink: will blink specified color
Example (Blink twice at default 500ms): color=LimeGreen blink=5
Example (Blink 5 times at 200ms each): color=LimeGreen blink="5,250"

Delay: Add a delay in milliseconds. Program will sleep before returning.

Last edited Dec 7, 2012 at 1:37 AM by gbrayut, version 7


hacnstein Sep 23, 2013 at 7:48 PM 
Can't get the USB webmail notifier to work.. trying
dreamcheekyled.exe device="\??\USB#VID_1294&PID_1320#6&28e0277e&0&1#{a5dcbf10-6530-11d2-901f-00c04fb951ed}" test - does nothing. help?