node-red-contrib-cryptography-qr-code

node-red-contrib-cryptography-qr-code

Make from a bitcoin address a QR-Codes with NodeRed Node. Simple use.

The word “QR Code” is registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

Parameter: Filename= a name with path for the qr-code result, Prefix= a prefix for the Address from bitcoin is the prefix "bitcoin:" if the prefix is empty, you can generate other qr-codes e.g. URLs http://www.wenzlaff.info or other.

Create QR-Code like this:

Install

Install from PALETTE Manager in NodeRed or run the following command in your NODE-RED user directory typically: ~/.node-red

npm install node-red-contrib-cryptography-qr-code

Flow Sample

[ { "id": "15f97750.9f15d1", "type": "inject", "z": "fa6c893a.ae8d8", "name": "Start", "props": [ { "p": "payload" }, { "p": "topic", "vt": "str" } ], "repeat": "", "crontab": "", "once": false, "onceDelay": 0.1, "topic": "1ESQwjgZa6ALM5Sha1nDZ2bU5wcQFzNFRH", "payload": "www.wenzlaff.de", "payloadType": "str", "x": 230, "y": 220, "wires": [ [ "c36f4049.b9248" ] ] }, { "id": "4d0b1987.f7a86", "type": "debug", "z": "fa6c893a.ae8d8", "name": "Ergebnis", "active": true, "tosidebar": true, "console": false, "tostatus": false, "complete": "payload", "targetType": "msg", "statusVal": "", "statusType": "auto", "x": 780, "y": 220, "wires": [] }, { "id": "ed289c05.b34a7", "type": "comment", "z": "fa6c893a.ae8d8", "name": "(c) 2021 Thomas Wenzlaff www.wenzlaff.info", "info": "Verwendeter Node: node-red-contrib-miio-roborock", "x": 690, "y": 140, "wires": [] }, { "id": "987d0461.3a3738", "type": "comment", "z": "fa6c893a.ae8d8", "name": "Create simple QR-Code", "info": "", "x": 260, "y": 140, "wires": [] }, { "id": "c36f4049.b9248", "type": "cryptoqrcode", "z": "fa6c893a.ae8d8", "name": "", "filename": "/data/wenzlaff-address-qr-code.png", "prefix": "", "x": 470, "y": 220, "wires": [ [ "4d0b1987.f7a86" ] ] } ]