/
MintyIO.js
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/
MintyIO.js
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const io = require('socket.io-client');
const Encoder7Bit = require('encoder7bit');
const config = require('./MintyConfig');
const socket = io.connect(config.url);
const MintyIO = function (board, serial) {
this.board = board;
this.serial = serial;
this.getSocket = function () {
return socket;
},
this.sendRF = function (code) {
if (config.isSendingRfSignals) {
log("RF@" + code);
this.sendSerial(config.RCT_OUTPUT_DETACH, config.RCT_OUT_PIN);
this.sendSerial(config.RCT_OUTPUT_ATTACH, config.RCT_OUT_PIN);
if (config.RCT_PULSE_LENGTH) {
this.sendSerial(config.RCT_OUTPUT_PULSE_LENGTH, config.RCT_OUT_PIN, config.RCT_PULSE_LENGTH);
}
let bytes = Encoder7Bit.to7BitArray([0x18, 0x00].concat(this.longToByteArray(code)));
this.sendSerial(config.RCT_OUTPUT_CODE_LONG, config.RCT_OUT_PIN, bytes);
} else {
warn("RF@" + code + " - surpressed");
}
}.bind(this);
/* rework of https://github.com/git-developer/RCSwitchFirmata */
this.sendSerial = function (command, pin, val) {
var data = [];
data.push(config.SYSEX_START);
data.push(config.RCT_OUTPUT_DATA);
data.push(command);
data.push(pin);
if (val) {
if (Array.isArray(val)) {
for (var i = 0; i < val.length; i++) {
data.push(val[i]);
}
} else {
data.push(val & 0x7F);
val = val >> 7;
data.push(val & 0x7F);
val = val >> 7;
data.push(val & 0x7F);
}
}
data.push(config.SYSEX_END);
this.serial.write(data);
}.bind(this);
/* Communicate with the Atlas Tenticle Shield, Motor Shields, etc via I2C */
this.sendAtlasI2C = function (channel, command, callback) {
log('I2C[' + lookupAtlasChannel(channel) + '] Sending Command: ' + lookupAtlasCommand(command));
this.board.io.i2cWrite(channel, command);
log("Command sent, waiting..." + this.board);
this.board.wait(config.ATLAS_DELAY, function () {
this.board.i2cReadOnce(channel, config.ATLAS_BYTES_TO_READ, function (bytes) {
let data = (String.fromCharCode(...bytes.filter(Boolean)));
data = data.slice(1, data.length);
log('I2C[' + channel + '] Result: ' + data);
callback(data);
});
}.bind(this));
}.bind(this);
this.socketEmit = function (namespace, payload) {
if (payload != undefined && payload != "") {
log("EMIT@" + namespace, payload);
socket.emit(namespace, payload);
}
}.bind(this);
this.socketBroadcast = function (namespace, payload) {
if (payload != undefined && payload != "") {
log("BroadCast@" + namespace, payload);
socket.broadcast.emit(namespace, payload);
}
}.bind(this);
// https://stackoverflow.com/questions/8482309/converting-javascript-integer-to-byte-array-and-back
this.longToByteArray = function (long) {
var byteArray = [0, 0, 0, 0, 0, 0, 0, 0];
for (var index = 0; index < byteArray.length; index++) {
var byte = long & 0xff;
byteArray[index] = byte;
long = (long - byte) / 256;
}
return byteArray;
};
this.byteArrayToLong = function (byteArray) {
var value = 0;
for (var i = byteArray.length - 1; i >= 0; i--) {
value = (value * 256) + byteArray[i];
}
return value;
};
}
function warn(msg, payload) {
console.warn("[" + (new Date()).toUTCString() + "] ** ALERT ** [IO] " + msg, payload != undefined ? payload : "");
}
function log(msg, payload) {
if (config.debug) console.log("[" + (new Date()).toUTCString() + "] [IO] " + msg, payload != undefined ? payload : "");
}
function lookupAtlasChannel(command) {
switch (command) {
case 99:
return "PH";
case 102:
return "Temp";
case 100:
return "EC";
default:
return "FAILED:" + command;
}
}
function lookupAtlasCommand(command) {
switch (command) {
case config.ATLAS_READ_CHARCODE:
return "READ Sensor";
default:
return "FAILED:" + command;
}
}
module.exports = MintyIO;