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Chowmain - Experience Buttons Suite 
The Chowmain Experience Buttons Suite of drivers is designed to add additional functionality into Control4 for various Pulse buttons, On/Off type buttons and Radio Buttons. These buttons can be added to the watch, listen, security, comfort and services menu in Control4's navigator across all user interface devices. Think of them as custom buttons with an icon and feedback as to their current state. 
On/Off Based buttons Features 
Ability to be placed in the following menus.  Watch  Listen  Comfort  Security  Services (only available on T3 touchscreens/EA Controllers)  14 different buttons to choose from  On/Off 1  On/Off 2  On/Off 3  On/Off 4  Holiday Mode 1  Holiday Mode 2  Holiday Mode 3  Holiday Mode 4  Nurse Call  Party Mode 1  Party Mode 2  Romance  Tech Support  Checkbox  Favorites  Events  On  Off  Actions  Turn On  Turn Off  Variables  Activated  Clicking on a button will toggle the state from On/Off or vice versa and fire an event.  Radio Button Features 
Ability to be placed in the following menus.  Watch  Listen  Comfort  Security  Services (only available on T3 touchscreens/EA Controllers)  Add multiple instances of the driver and group together to create radio buttons in navigator  Only one radio button can be selected at any time (just like real radio buttons).  Events  Selected  Not Selected  Actions  Select Radio Button  Variables  Checked  FAQ 
Can you give us some examples of how we could use this driver? 
Favorites buttons can be added to Watch/Listen and programmed to start playback of your favorite TV/Radio Channel, Movie or Playlist eg CNN, BBC, Fox FM, Alan's Playlist.  Holiday Mode buttons can be used to trigger holiday mode programming whilst the home owners are away.  Use the tech support button to send you, the dealer, an email notifying you that the owner requires assistance.  Use the nurse call button for aged care based functionality to call the carer.  The On/Off buttons and checkbox buttons can be used for various programming including boolean variable manipulation, turning automated tasks on/off and more.  Radio buttons can be used to change the state of a number variable. This is useful for mode selection in the home for modes that have more than 2 options. If a mode has two options only please utilise any of the other On/Off based Experience Buttons.  Why do you only support OS 2.9 and above? 
Experience Buttons requires new functionality only available in OS 2.9 and above. It will not work for older versions of OS. 
Can you add XYZ button to the Experience Button Suite? 
If its a good idea and generic enough where other dealers will use it then yes. You will need to provide us with an on and off PNG based image at 300x300. If you have obtained or modified any images sourced from someone else please provide any relevant licencing information that we need to abide by. 
How do I find out more information about the driver? 
Please see the links below for more information about the driver. 
Chowmain Website
Download Installation Guide
How do I buy the driver? 
This driver is developed by Chowmain software & apps and is distributed and supported by Houselogix, Inc. 
Download Driver / Purchase Licence
Who do i contact for technical support? 
This driver is developed by Chowmain software & apps and is distributed and supported by Houselogix, Inc. 
Support 
Do you provide trial licences? 
All Chowmain drivers for Control4 come with a 48 hour trial. This is activated once you add the driver to the project. No additional steps are necessary. 

Guest Services Example
 
Watch Example
 
Listen Example

Confirmed working on a new BenQ HT2050. 
Thanks Alan
Btw to point out Pins 2 and 3 are reversed on the DB9 connection to the projector.  
 
 

Chowmain - Big Ass Fans / Big Ass Lights Driver 
The Chowmain Big Ass Fans Driver for Control4 allows integration of the IP controllable Big Ass Fans and Big Ass Lights into Control4 allowing full 2 way multispeed fan and multi level lighting control over your home.
Integration into Control4 allows control from a single point using Control4's touchscreens, mobile applications, keypads, handheld remote controls and cloud based 4sight remote monitoring and control service. On top of that it exposes control over the Haiku products in the Control4 ecosystem to provide interaction from other devices in the home.
From turning off your fans and lights when you arm your security system to automatically turning them on when it detects you are at home and if the temperature is at an uncomfortable level integration provides you with so many different solutions to make your lifestyle that much easier.
General Features 
Automatically Discover and Manage Big Ass Fan Devices on your network using our new Big Ass Fans V2 Agent Instantaneous Feedback Wide variety of read/write variables for feedback and advanced programming Light Features
Automatic Naming of Lights Auto mapped light levels (Control4 has 0-100 where Haiku has 0-16) Support for Advanced Lighting Scenes Two way feedback – Level, Device Name, Device MAC Address, Device IP Address Programming Commands OS 3.3.0 CCT / White Temperature Light Color Wheel Support BUTTON_LINK support for brightness and CCT control by 3rd party devices Fan Features
7 Speed Control Automatic naming of Fans Assign Preset Speed (On speed when toggled) Two way feedback – Speed, Device Name, Device MAC Address, Device IP Address Programming Commands - Whoosh Mode, Fan Auto, Fan Direction BUTTON_LINK support for Toggle and cycle up/down support by 3rd party devices Sensors
Occupancy/Motion Sensor Support and bindings to detect if a room is occupied or not Temperature and Humidity Sensor Support FAQ 
Which Big Ass Fan Products are supported by this driver?
At this time, the following products are supported:
Haiku (H and I Series) Haiku L Haiku Light i6 es6 If its supported by the Big Ass Fans mobile app, it's probably supported by our driver.
Where is the Fan in Control4's interface?
Fan control is available from Control4's lighting page
How come the dimmer level changes slightly when i set a level?
Many light only have dim levels of 0-16, which may cause the level changes to vary
I notice that the driver automatically renames. What if i want to name it myself?
Adjust the Auto Rename Property on the fan.
How do i use whoosh, fan direction or the automatic settings?
These functions are programmed as one-way commands in the fan / light driver's programming commands. You should tie these into experience buttons, schedules or other event based programming.
What Control4 OS is required for this driver?
OS 3.3.0 or above is required for our Big Ass Fans V2 driver. For Legacy systems, V1 may still be used, but requires older firmware and supports limited hardware
My Fans were working correctly in V1, however, the fans do not operate in V2
You must upgrade your mobile app from the original Haiku App to the new Big Ass fans app and update the firmware. V2 requires updated firmware for operation. V1 does not require updated firmware, but it does not support all of the features or hardware of V2.
I have functionality I want to use which isn't available as a command or binding
We expose lots of functionality as variables which you can modify. If there are variables which you can't write to, or if you want functionality which is better handled in another way, let us know.
Do you offer any other cool drivers?
Control4 is a major part of our business. We develop new drivers all the time. You can see all of our drivers on our website (http://www.chowmainsoft.com). Sign up to our newsletter to get notified when new drivers out.
I want to try this driver out before buying it?
All Chowmain drivers for Control4 come with a 90 day trial.
Where can i find out more?
You can find out more about the driver from the following link.
https://chowmain.software/drivers/control4-big-ass-fans-haiku
   

Here is a quick one way RS232 driver i made up for the BenQ W1070/W1080ST projector.  It may work with other models but i have not tested it.

I can, the temp driver was ALWAYS 'As-Is'  by Card Access, and since the take-over of the devices C4 dropped it.
Because it's buggy. What happens is that they stop loading info into the Temp driver on start-up. Sometimes it does, sometimes it doesn't. Some projects (including my own) some load fine, some do not.
It can be temporarily fixed by reconnecting the driver to the 'node' in Pro, but it will fail on next reboot. Even for me (who can obviously change it easily enough, but has more intended reboots than the average user) it's a pain.
So, I've moved over to: https://www.houselogix.com/shop/temp-tracker
That one handles all sorts of devices, including Card Access units, Axxess units and more.

Create an announcement agent.
Create a bookmark of the camera
Call the book and on announcement.
The tv will auto turn on / switch to the camera and after a while it will auto turn off or switch back to what you where watching.