node-red-contrib-time-converter/hex-to-dec.js

A Node-RED node that converts seconds to mm:ss format and outputs it.

module.exports = function(RED) {
    function HexToDecNode(config) {
        RED.nodes.createNode(this, config);
        const node = this;

        node.on("input", function(msg, send, done) {
            try {
                let hexStr = String(msg.payload);
                while (hexStr.length < 64) { // 2*32
                    hexStr += '0';
                }

                const g = hexStr.match(/.{2}/g) || [];
                msg.payload = g.map(hex => parseInt(hex, 16));

                // Debug info
                msg.topic = `while(msg.payload.length<2*32){msg.payload+='0'}; let g=msg.payload.match(/.{2}/g); msg.payload=g.map(hex=>parseInt(hex,16))`;

                send(msg);
                if (done) done();
            } catch (err) {
                if (done) done(err);
                else node.error(err, msg);
            }
        });
    }
    RED.nodes.registerType("hex-to-dec", HexToDecNode);
}