Ft-Series - Ft101

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/** * Payload Decoder * * Copyright 2025 Milesight IoT * * @product FT101 */ var RAW_VALUE = 0x00; /* eslint no-redeclare: "off" */ /* eslint-disable */ // Chirpstack v4 function decodeUplink(input) { var decoded = milesightDeviceDecode(input.bytes); return { data: decoded }; } // Chirpstack v3 function Decode(fPort, bytes) { return milesightDeviceDecode(bytes); } // The Things Network function Decoder(bytes, port) { return milesightDeviceDecode(bytes); } /* eslint-enable */ function milesightDeviceDecode(bytes) { var decoded = {}; for (var i = 0; i < bytes.length; ) { var channel_id = bytes[i++]; var channel_type = bytes[i++]; // IPSO VERSION if (channel_id === 0xff && channel_type === 0x01) { decoded.ipso_version = readProtocolVersion(bytes[i]); i += 1; } // HARDWARE VERSION else if (channel_id === 0xff && channel_type === 0x09) { decoded.hardware_version = readHardwareVersion(bytes.slice(i, i + 2)); i += 2; } // FIRMWARE VERSION else if (channel_id === 0xff && channel_type === 0x0a) { decoded.firmware_version = readFirmwareVersion(bytes.slice(i, i + 2)); i += 2; } // DEVICE STATUS else if (channel_id === 0xff && channel_type === 0x0b) { decoded.device_status = readDeviceStatus(1); i += 1; } // LORAWAN CLASS else if (channel_id === 0xff && channel_type === 0x0f) { decoded.lorawan_class = readLoRaWANClass(bytes[i]); i += 1; } // PRODUCT SERIAL NUMBER else if (channel_id === 0xff && channel_type === 0x16) { decoded.sn = readSerialNumber(bytes.slice(i, i + 8)); i += 8; } // TSL VERSION else if (channel_id === 0xff && channel_type === 0xff) { decoded.tsl_version = readTslVersion(bytes.slice(i, i + 2)); i += 2; } // LOCATION else if (channel_id === 0x03 && channel_type === 0xa1) { decoded.longitude = readInt32LE(bytes.slice(i, i + 4)) / 1000000; decoded.latitude = readInt32LE(bytes.slice(i + 4, i + 8)) / 1000000; i += 8; } // SIGNAL STRENGTH else if (channel_id === 0x04 && channel_type === 0xa2) { decoded.rssi = readInt16LE(bytes.slice(i, i + 2)) / 10; decoded.snr = readInt16LE(bytes.slice(i + 2, i + 4)) / 10; i += 4; } // SF else if (channel_id === 0x05 && channel_type === 0xa3) { decoded.sf = readUInt8(bytes[i]); i += 1; } // TX POWER else if (channel_id === 0x06 && channel_type === 0xa4) { decoded.tx_power = readInt16LE(bytes.slice(i, i + 2)) / 100; i += 2; } else { break; } } return decoded; } /* eslint-disable */ function readUInt8(bytes) { return bytes & 0xff; } function readInt8(bytes) { var ref = readUInt8(bytes); return ref > 0x7f ? ref - 0x100 : ref; } function readUInt16LE(bytes) { var value = (bytes[1] << 8) + bytes[0]; return value & 0xffff; } function readInt16LE(bytes) { var ref = readUInt16LE(bytes); return ref > 0x7fff ? ref - 0x10000 : ref; } function readUInt32LE(bytes) { var value = (bytes[3] << 24) + (bytes[2] << 16) + (bytes[1] << 8) + bytes[0]; return (value & 0xffffffff) >>> 0; } function readInt32LE(bytes) { var ref = readUInt32LE(bytes); return ref > 0x7fffffff ? ref - 0x100000000 : ref; } function readFloatLE(bytes) { var bits = (bytes[3] << 24) | (bytes[2] << 16) | (bytes[1] << 8) | bytes[0]; var sign = bits >>> 31 === 0 ? 1.0 : -1.0; var e = (bits >>> 23) & 0xff; var m = e === 0 ? (bits & 0x7fffff) << 1 : (bits & 0x7fffff) | 0x800000; var f = sign * m * Math.pow(2, e - 150); return f; } function getValue(map, key) { if (RAW_VALUE) return key; var value = map[key]; if (!value) value = "unknown"; return value; } function readProtocolVersion(bytes) { var major = (bytes & 0xf0) >> 4; var minor = bytes & 0x0f; return "v" + major + "." + minor; } function readHardwareVersion(bytes) { var major = (bytes[0] & 0xff).toString(16); var minor = (bytes[1] & 0xff) >> 4; return "v" + major + "." + minor; } function readFirmwareVersion(bytes) { var major = (bytes[0] & 0xff).toString(16); var minor = (bytes[1] & 0xff).toString(16); return "v" + major + "." + minor; } function readTslVersion(bytes) { var major = bytes[0] & 0xff; var minor = bytes[1] & 0xff; return "v" + major + "." + minor; } function readSerialNumber(bytes) { var temp = []; for (var idx = 0; idx < bytes.length; idx++) { temp.push(("0" + (bytes[idx] & 0xff).toString(16)).slice(-2)); } return temp.join(""); } function readLoRaWANClass(type) { var lorawan_class_map = { 0: "Class A", 1: "Class B", 2: "Class C", 3: "Class CtoB", }; return getValue(lorawan_class_map, type); } function readDeviceStatus(bytes) { var device_status_map = { 1: "on", 0: "off" }; return getValue(device_status_map, bytes); }