Node-Red flow for controlling and connecting to a Fujifilm INSTAX Printer

instax-flow.js

[
    {
        "id": "5e4a70ef.bac7a",
        "type": "tab",
        "label": "Flow 1",
        "disabled": false,
        "info": ""
    },
    {
        "id": "17f15d16.6e3143",
        "type": "subflow",
        "name": "Toggle Instax Power",
        "info": "",
        "in": [
            {
                "x": 60,
                "y": 80,
                "wires": [
                    {
                        "id": "cde60f00.626b8"
                    }
                ]
            }
        ],
        "out": []
    },
    {
        "id": "2baee422.fab20c",
        "type": "subflow",
        "name": "INSTAX online?",
        "info": "Checks for a WiFi network that begins with instax.\nIf available, the SSID will be returned.",
        "in": [
            {
                "x": 320,
                "y": 160,
                "wires": [
                    {
                        "id": "22e7b1cb.a1408e"
                    }
                ]
            }
        ],
        "out": [
            {
                "x": 660,
                "y": 160,
                "wires": [
                    {
                        "id": "22e7b1cb.a1408e",
                        "port": 0
                    }
                ]
            }
        ]
    },
    {
        "id": "fd8a21ec.d31a3",
        "type": "inject",
        "z": "5e4a70ef.bac7a",
        "name": "",
        "topic": "",
        "payload": "0",
        "payloadType": "num",
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "x": 110,
        "y": 60,
        "wires": [
            [
                "88c52421.53f3c8"
            ]
        ]
    },
    {
        "id": "992699da.82c778",
        "type": "inject",
        "z": "5e4a70ef.bac7a",
        "name": "",
        "topic": "",
        "payload": "100",
        "payloadType": "num",
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "x": 110,
        "y": 140,
        "wires": [
            [
                "88c52421.53f3c8"
            ]
        ]
    },
    {
        "id": "88c52421.53f3c8",
        "type": "pi-gpiod out",
        "z": "5e4a70ef.bac7a",
        "name": "",
        "host": "localhost",
        "port": 8888,
        "pin": "2",
        "set": "",
        "level": "0",
        "out": "ser",
        "sermin": "600",
        "sermax": "2400",
        "x": 260,
        "y": 100,
        "wires": []
    },
    {
        "id": "dac09d7.b3b086",
        "type": "inject",
        "z": "5e4a70ef.bac7a",
        "name": "",
        "topic": "",
        "payload": "50",
        "payloadType": "num",
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "x": 110,
        "y": 100,
        "wires": [
            [
                "88c52421.53f3c8"
            ]
        ]
    },
    {
        "id": "c4503177.2a743",
        "type": "inject",
        "z": "5e4a70ef.bac7a",
        "name": "Toggle Power",
        "topic": "",
        "payload": "true",
        "payloadType": "bool",
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "x": 650,
        "y": 140,
        "wires": [
            [
                "c0137ced.a10bf"
            ]
        ]
    },
    {
        "id": "49559a6b.ce6964",
        "type": "inject",
        "z": "5e4a70ef.bac7a",
        "name": "Connect to Instax network if available.",
        "topic": "",
        "payload": "",
        "payloadType": "date",
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "x": 250,
        "y": 320,
        "wires": [
            [
                "b80130a1.6e6f2"
            ]
        ]
    },
    {
        "id": "b6fd59b6.63c738",
        "type": "debug",
        "z": "5e4a70ef.bac7a",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 550,
        "y": 320,
        "wires": []
    },
    {
        "id": "e4e8a53b.31d7c8",
        "type": "pi-gpiod out",
        "z": "17f15d16.6e3143",
        "name": "",
        "host": "localhost",
        "port": 8888,
        "pin": "4",
        "set": true,
        "level": "0",
        "out": "out",
        "sermin": "1000",
        "sermax": "2000",
        "x": 600,
        "y": 120,
        "wires": []
    },
    {
        "id": "cde60f00.626b8",
        "type": "function",
        "z": "17f15d16.6e3143",
        "name": "Set High",
        "func": "msg.payload = 1;\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "x": 240,
        "y": 80,
        "wires": [
            [
                "e4e8a53b.31d7c8",
                "738a1928.774e28"
            ]
        ]
    },
    {
        "id": "738a1928.774e28",
        "type": "delay",
        "z": "17f15d16.6e3143",
        "name": "",
        "pauseType": "delay",
        "timeout": "1",
        "timeoutUnits": "seconds",
        "rate": "1",
        "nbRateUnits": "1",
        "rateUnits": "second",
        "randomFirst": "1",
        "randomLast": "5",
        "randomUnits": "seconds",
        "drop": false,
        "x": 420,
        "y": 60,
        "wires": [
            [
                "28622509.0e84aa"
            ]
        ]
    },
    {
        "id": "28622509.0e84aa",
        "type": "function",
        "z": "17f15d16.6e3143",
        "name": "Set Low",
        "func": "msg.payload = 0;\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "x": 560,
        "y": 60,
        "wires": [
            [
                "e4e8a53b.31d7c8"
            ]
        ]
    },
    {
        "id": "c0137ced.a10bf",
        "type": "subflow:17f15d16.6e3143",
        "z": "5e4a70ef.bac7a",
        "name": "",
        "x": 910,
        "y": 140,
        "wires": []
    },
    {
        "id": "22e7b1cb.a1408e",
        "type": "function",
        "z": "2baee422.fab20c",
        "name": "Is INSTAX SSID present",
        "func": "var piWifi = global.get('piwifi');\n\n\n\npiWifi.scan(function(err, networks) {\n  if (err) {\n    return console.error(err.message);\n  }\n  for (var x = 0; x < networks.length; x++){\n\n    if( 'ssid' in networks[x] && networks[x].ssid.startsWith(\"INSTAX-\")){\n        node.send({payload:networks[x].ssid});\n    }\n}\n  \n});\n\n\n\n\n",
        "outputs": 1,
        "noerr": 0,
        "x": 470,
        "y": 160,
        "wires": [
            []
        ]
    },
    {
        "id": "b80130a1.6e6f2",
        "type": "subflow:2baee422.fab20c",
        "z": "5e4a70ef.bac7a",
        "name": "",
        "x": 400,
        "y": 380,
        "wires": [
            [
                "b6fd59b6.63c738",
                "d85201ae.a11be"
            ]
        ]
    },
    {
        "id": "d85201ae.a11be",
        "type": "function",
        "z": "5e4a70ef.bac7a",
        "name": "Connect to network",
        "func": "var piWifi = global.get('piwifi');\n\nvar ssid = msg.payload;\n\npiWifi.connectTo({ssid: ssid}, function(err) {\n  if (!err) { //Network created correctly\n    setTimeout(function () {\n      piWifi.check(ssid, function (err, status) {\n        if (!err && status.connected) {\n            node.send({payload:{state: \"connected\", ssid: ssid}});\n        } else {\n          node.send({payload:{state: \"failed to connect\", ssid: ssid}});\n        }\n      });\n    }, 2000);\n  } else {\n    node.send({payload:{state: \"failed to create network\", ssid: ssid}});\n  }\n})",
        "outputs": 1,
        "noerr": 0,
        "x": 590,
        "y": 380,
        "wires": [
            [
                "f4be7644.1f11e8"
            ]
        ]
    },
    {
        "id": "f4be7644.1f11e8",
        "type": "debug",
        "z": "5e4a70ef.bac7a",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 750,
        "y": 320,
        "wires": []
    }
]

instaxHat.fzz

instaxHat_schem.png

Dependencies:

• pi-wifi (Node.js)
• node-red-node-pi-gpiod