node-red-contrib-sense-hat-scroll-message
v2.1.2
Published
A Node-RED node to scroll messages across the node-red-node-pi-sense-hat-simulator LED display
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node-red-contrib-sense-hat-scroll-message
node-red-contrib-sense-hat-scroll-message is a Node-RED node to send scrolling message to the node-red-node-pi-sense-hat-simulator node. It works like an intermediate node, scrolling all messages contained in msg.payload
in the LED display of the sense-hat simulator output node.
Note: This isn't a replacement to the still unimplemented displaying message feature of the node-red-node-pi-sense-hat-simulator. This is meant to be a helper node to support such feature while it is not available.
Installation
To install the package, just run the following command in your Node-RED user
directory (usually ~/.node-red
):
npm install node-red-contrib-sense-hat-scroll-message
Edit Dialog Options
- Color
- Type: HTML input color
- Default value:
#ffffff
- Values: any hexadecimal color
- Definition: the message's color
- Optional: If the checkbox "Random Colors" is checked, the color option will be disabled
- Background
- Type: HTML input color
- Default value:
#000000
(equivalent tooff
) - Values: any hexadecimal color
- Definition: the background of the LED display
- Shift Amount
- Type: HTML drop-down list
- Default value: 1
- Values: 1, 2, 4, or 8
- Description: The shift amount by which the message will be scrolled
- Delay
- Type: HTML input
- Default value: 200
- Description: delay in milliseconds
- Rotation
- Type: HTML drop-down list
- Default value: 0
- Values: 0, 90, 180, 270
- Description: rotation in degrees
- Flip
- Type: HTML drop-down list
- Default value: no
- Values: no, horizontally, vertically
- Description: flips the message
Acknowledgment
The scrolling algorithm was based on the solution present in:
McRoberts, M. (2013). Beginning Arduino. Apress.
License
node-red-contrib-sense-hat-scroll-message is available under the MIT license. See the LICENSE file for more info.