Using REST APIs with Helm

Helm has built-in support for both creating and accessing JSON REST APIs. This replaces the older “WebActive” property of the Root Panel, which is now deprecated. Accessing REST APIs To start, add a REST API Device to your panel. You’ll find this in...

Helm integration with Facebook

Helm 4.4 includes a Facebook “device” to allow Helm panels to integrate use of Facebook with broadcast devices. Typical application include: Posting status updates directly to Facebook from Helm panels Creating Facebook Live streaming broadcasts directly...

Lua Scripts in Helm 4.4

Helm 4.4 introduces some new concepts and capabilities for Lua script support. All existing Lua scripts should work unchanged but use of these new powerful features will require Helm 4.4 or later. This post gives an overview of the new features but does not list the...

Updating Helm display in Lua

If you are programming a sequence of actions in Lua you will soon realise that the Helm user interface does not update until the script is finished. That makes sense under most circumstances for reasons of efficiency. However, if you do want to make lights flash on...

Using Helm Tables with lua

The Helm Table control is designed to display JSON data. In this example we show how to enter and retrieve Table data using lua script. So to begin with let’s look at how Tables exchange data with the world. JSON data format for Tables The JSON data has two...