Test Pin Interrupts on Tessel 1 & 2 Hardware

pins.js

// #tessel run pins.js T1 or #t2 run pins.js T2
var tesselHardware = process.argv[2] || 'T2';

var tessel = require('tessel');

var PORT_A, PORT_B;

if ( tesselHardware == 'T1' ) {

    PORT_A = {
        "port": 'A',
        "pins": ['G1', 'G2', 'G3'],
        "counter": 0
    };

    PORT_B = {
        "port": 'B',
        "pins": {
            "G1": tessel.port['B'].pin['G1'],
            "G2": tessel.port['B'].pin['G2'],
            "G3": tessel.port['B'].pin['G3']
        },
        "counter": 0
    };

}
else if ( tesselHardware == 'T2' ) {

    PORT_A = {
        "port": 'A',
        "pins": [2, 5, 6, 7],
        "counter": 0
    };

    PORT_B = {
        "port": 'B',
        "pins": {
            2: tessel.port['B'].pin[2],
            5: tessel.port['B'].pin[5],
            6: tessel.port['B'].pin[6],
            7: tessel.port['B'].pin[7]
        },
        "counter": 0
    };

}
else {
    console.log('#tessel run pins.js T1 or #t2 run pins.js T2');
}


function setPinEvents(PORT) {

    var port = PORT.port;
    var pins = PORT.pins;
    var counter = PORT.counter;

    if ( Array.isArray(pins) ) {

        pins.forEach(function(pin) {

            console.log('port:', port, 'pin:', pin);

            tessel.port[port].pin[pin].pull('pulldown');

            tessel.port[port].pin[pin].on('change', function() {

                counter++;

                if ( tesselHardware == 'T1' ) {
                    console.log('port:', port, 'pin:', pin, 'val:', this.read(), 'count:', counter);
                }
                else {
                    // this works
                    this.rawRead(function (err, val) {
                        console.log('port:', port, 'pin:', pin, 'val:', val, 'count:', counter);
                    });
                    // this doesn't work
                    /*
                    this.read(function(err, val) {
                        console.log('port:', port, 'pin:', pin, 'val:', val, 'count:', counter);
                    });
                    */
                }

            });

        });

    }
    else if ( typeof pins === 'object' ) {

        for ( var pin in pins ) {

            console.log('port:', port, 'pin:', pin);

            pins[pin].pull('pulldown');

            // this only works properly with T1 hardware
            pins[pin].on('change', function () {

                counter++;

                if ( tesselHardware == 'T1' ) {
                    console.log('port:', port, 'pin:', pin, 'val:', this.read(), 'count:', counter);
                }
                else {
                    // this works
                    this.rawRead(function (err, val) {
                        console.log('port:', port, 'pin:', pin, 'val:', val, 'count:', counter);
                    });
                    // this doesn't work
                    //this.read(function(err, val) {
                    //    console.log('port:', port, 'pin:', pin, 'val:', val, 'count:', counter);
                    //});

                }

            });

            // this works properly with both T1 & T2 hardware, but I'm not sure it should be necessary
            /*
            (function(pinId) {

                pins[pinId].on('change', function () {

                    if ( tesselHardware == 'T1' ) {
                        console.log('port:', port, 'pin:', pinId, 'val:', this.read());
                    }
                    else {
                        // this works
                        this.rawRead(function (err, val) {
                            console.log('port:', port, 'pin:', pinId, 'val:', val);
                        });
                        // this doesn't work
                        //this.read(function(err, val) {
                        //    console.log('port:', port, 'pin:', pin, 'val:', val, 'count:', counter);
                        //});
                    }

                });

            })(pin);
            */

        }

    }

}

setImmediate(function() {
    setPinEvents(PORT_A);
    setPinEvents(PORT_B);
    console.log(tesselHardware + ' - GPIO button test ready for PORT_A and PORT_B');
});