node-red-contrib-numbertoascii

Convert numbers into ASCII character sequences in Node-RED.

Overview

This Node-RED node takes a numeric input and converts it into:

1. An ASCII character array (based on 3-digit and 2-digit ASCII encoding rules).
2. A final ASCII string that represents the extracted characters.

Installation

To install this node, run:

npm install node-red-contrib-numbertoascii

Usage

Input

The node expects a numeric value (either as a number or a string).
Each 2-digit or 3-digit segment of the number is interpreted as an ASCII code.

Output

The node outputs an object with:

• asciiArray: An array of ASCII character codes.
• asciiString: The corresponding ASCII text.

Example Inputs & Outputs

Example 1

📥 Input: 6566676869
📤 Output:

{
    "asciiArray": [65, 66, 67, 68, 69],
    "asciiString": "ABCDE"
}

Example 2

📥 Input: 1106577110
📤 Output:

{
    "asciiArray": [110, 65, 77, 110],
    "asciiString": "nAMn"
}

Example 3

📥 Input: 123656667101120656667
📤 Output:

{
    "asciiArray": [123, 65, 66, 67, 101, 120, 65, 66, 67],
    "asciiString": "{ABCexABC"
}

How It Works

1. Splitting the Number:

   • The node tries to extract 3-digit ASCII codes first (if valid).
   • If not, it falls back to 2-digit ASCII codes.

2. Conversion to ASCII:

   • The extracted numbers are converted into their corresponding characters.

3. Error Handling:

   • If an invalid ASCII sequence is found, an error message is displayed.
   • The input must be numeric (not raw text).

Node Properties

• Name (optional): A custom name for the node.

Installation in Node-RED

1. Open Node-RED.
2. Go to Manage Palette → Install.
3. Search for "node-red-contrib-numbertoascii" and install it.

Alternatively, install via command line:

cd ~/.node-red
npm install node-red-contrib-numbertoascii

Then restart Node-RED:

node-red-restart

License

📜 GPL-3.0 – Free to use, modify, and distribute.