samsung-hvac
Version:
Samsung HVAC protocol library
128 lines (127 loc) • 6.17 kB
JavaScript
;
// Library functions for serial access of Samsung HVAC systems
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.serialSendHvacMsg = exports.composeHvacMsg = exports.serialCaptureHvacMsg = exports.printSerialLine = exports.printHeading = exports.closeSerialPortal = exports.openSerialPort = void 0;
// Author: Danny De Gaspari, Guy Bridge
var serialport_1 = require("serialport");
var ByteConstants_1 = require("../const/ByteConstants");
var ord_1 = require("../util/ord");
var openSerialPort = function (port) {
if (port === void 0) { port = '/dev/serial0'; }
return __awaiter(void 0, void 0, void 0, function () {
var serial;
return __generator(this, function (_a) {
serial = new serialport_1.SerialPort({ path: port, baudRate: 2400, dataBits: 8, parity: "even", stopBits: 1 });
return [2 /*return*/, new Promise(function (resolve, reject) {
serial.open(function (error) {
if (!error)
return resolve(serial);
return reject(error);
});
})];
});
});
};
exports.openSerialPort = openSerialPort;
var closeSerialPortal = function (serial) {
serial.close();
};
exports.closeSerialPortal = closeSerialPortal;
var printHeading = function (noProtocol) {
if (noProtocol === void 0) { noProtocol = true; }
if (noProtocol) {
console.log('STA SRC DST CMD DATA CHK END');
console.log('-------------------------------------------------------');
}
else {
console.log('SRC DST CMD DATA ');
console.log('--------------------------------------------');
}
};
exports.printHeading = printHeading;
var printSerialLine = function (serialLine, noProtocol) {
if (noProtocol === void 0) { noProtocol = true; }
if (!noProtocol) {
for (var i in serialLine)
console.log(i);
}
else {
for (var i in [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12])
console.log(i);
}
console.log("\n");
};
exports.printSerialLine = printSerialLine;
var serialCaptureHvacMsg = function (serial) {
var msg = serial.read(30); // read until start of new message
msg = serial.read(ByteConstants_1.ByteConstants.PROTOCOL_LENGTH - 1); // read remaining message
msg = ByteConstants_1.ByteConstants.PROTOCOL_START + msg;
return msg;
};
exports.serialCaptureHvacMsg = serialCaptureHvacMsg;
var composeHvacMsg = function (msg) {
var serline = [];
serline.push((0, ord_1.ord)(ByteConstants_1.ByteConstants.PROTOCOL_START));
var chksum = 0;
for (var _i = 0, msg_1 = msg; _i < msg_1.length; _i++) {
var x = msg_1[_i];
serline.push(x);
chksum = chksum ^ x; // xor
}
serline.push(chksum);
serline.push((0, ord_1.ord)(ByteConstants_1.ByteConstants.PROTOCOL_END));
return serline;
};
exports.composeHvacMsg = composeHvacMsg;
var serialSendHvacMsg = function (serial, message) {
// send message and return response
var wait_idle = true;
var serline = [];
// Now wait until the last transmission of a burst of 5 has been transmitted, this is the 0xAD destination.
// Then there is a 300 ms gap for our own transmission.
while (wait_idle) {
serline = (0, exports.serialCaptureHvacMsg)(serial);
if (serline[ByteConstants_1.ByteConstants.PROTOCOL_DESTINATION_POS] == 0xAD)
wait_idle = false;
}
serial.write(message);
serline = (0, exports.serialCaptureHvacMsg)(serial);
return serline;
};
exports.serialSendHvacMsg = serialSendHvacMsg;