first commit

thingie.js

@@ -0,0 +1,78 @@
+const HMUARTLGW_DST_OS = 0
+const HMUARTLGW_DST_APP = '1'
+
+const crc = function (message) {
+  var $crc = 0xd77f
+  var buf = Buffer.from(message, 'hex')
+  for (var byte of buf) {
+    $crc ^= (byte << 8) & 0xff00
+    for (var $i = 0; $i < 8; $i++) {
+			if ($crc & 0x8000) {
+				$crc = ($crc << 1) & 0xffff
+				$crc ^= 0x8005
+			} else {
+				$crc = ($crc << 1) & 0xffff
+			}
+    }
+  }
+  return $crc.toString(16)
+}
+
+let leading = 'fd00'
+let dst = String('0' + String(HMUARTLGW_DST_APP))
+let msgCountPerDevice = 0
+let msgCountPerCoordinator = 19
+let length = 0
+let filler = '000000'
+let payload = `A0 11 670A2A 19C4DB 0201 C8 0000`.replace(/ /g, '').toString('hex')
+
+// increase counter
+msgCountPerDevice = parseInt(msgCountPerDevice + 1, 10)
+msgCountPerCoordinator = parseInt(msgCountPerCoordinator + 1, 10)
+
+// calculate length
+length = ((payload.length + 2) / 2)
+
+// get hex values from counter
+let msgCountPerDeviceHex = parseInt(msgCountPerDevice, 10).toString(16)
+let msgCountPerCoordinatorHex = parseInt(msgCountPerCoordinator, 10).toString(16)
+
+if (msgCountPerDeviceHex.length === 1) {
+  msgCountPerDeviceHex = '0' + msgCountPerDeviceHex
+}
+
+if (msgCountPerCoordinatorHex.length === 1) {
+  msgCountPerCoordinatorHex = '0' + msgCountPerCoordinatorHex
+}
+
+// build frame
+let frame = `${leading} ${length} ${dst} ${msgCountPerCoordinatorHex} 02 ${filler} ${msgCountPerDeviceHex} ${payload}`.replace(/ /g, '')
+
+// calculate crc
+frame += crc(frame)
+
+const net = require('net');
+const client = net.createConnection({ port: 9000, host: '192.168.178.95' }, () => {
+  // 'connect' listener
+  console.log('connected to server!');
+  console.log(Buffer.from(frame, 'hex'))
+  client.write(Buffer.from(frame, 'hex'));
+  //client.write(Buffer.from('fd00030001009e03', 'hex'));
+  //client.write(Buffer.from('fd00030002039409', 'hex'));
+});
+client.on('data', (data) => {
+  console.log(data.toString())
+});
+client.on('end', () => {
+  console.log('disconnected from server');
+})
+
+// C: fd00 03 0001 009e03
+// D: fd00 0e 0001 0402 436f5f4350555f417070
+
+// C: fd00 03 0002 039409
+// D: fd00 04 0002 04011916 -> ?
+// D: fd00 0d 000000 436f -> Co
+// D: 5f4350555f417070d831 -> CPU_APP
+// D: fd00 12 0100 050000 -> ?
+// D 26a186701ac33300000000ef3fa001