MILESIGHT - Uc11 T1

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/* eslint-disable no-plusplus */ /* eslint-disable no-bitwise */ function readUInt8LE(bytes) { return bytes & 0xff; } function readUInt16LE(bytes) { const value = (bytes[1] << 8) + bytes[0]; return value & 0xffff; } function readInt16LE(bytes) { const ref = readUInt16LE(bytes); return ref > 0x7fff ? ref - 0x10000 : ref; } // T1: Payload Decoder function Decoder(bytes) { const decoded = []; for (let i = 0; i < bytes.length; ) { const channel_id = bytes[i++]; const channel_type = bytes[i++]; // TEMPERATURE if (channel_id === 0x01 && channel_type === 0x67) { decoded.push({ variable: "temperature", value: readInt16LE(bytes.slice(i, i + 2)) / 10, unit: "°C" }); i += 2; } // HUMIDITY else if (channel_id === 0x02 && channel_type === 0x68) { decoded.push({ variable: "humidity", value: readUInt8LE(bytes[i]) / 2, unit: "%" }); i += 1; } // BATTERY else if (channel_id === 0x03 && channel_type === 0x75) { decoded.push({ variable: "battery", value: bytes[i], unit: "%" }); i += 1; } // DEVICE RESTART NOTIFICATION else if (channel_id === 0xff && channel_type === 0x0b) { if (bytes[i] !== 0xff) { return [{ variable: "parser_error", value: "Syntax error: operation is not supported" }]; } decoded.push({ variable: "device_restart_notification", value: 1 }); i += 1; } // CUSTOM FORMAT VERSION else if (channel_id === 0xff && channel_type === 0x01) { decoded.push({ variable: "custom_format_version", value: readUInt8LE(bytes[i]) }); i += 1; } // DEVICE SN else if (channel_id === 0xff && channel_type === 0x08) { decoded.push({ variable: "device_sn", value: bytes.slice(i, i + 6).toString("hex") }); i += 6; } // HARDWARE VERSION else if (channel_id === 0xff && channel_type === 0x09) { decoded.push({ variable: "hardware_version", value: bytes.slice(i, i + 2).toString("hex") / 100 }); i += 2; } // SOFTWARE VERSION else if (channel_id === 0xff && channel_type === 0x0a) { decoded.push({ variable: "software_version", value: bytes.slice(i, i + 2).toString("hex") / 100 }); i += 2; } // TEMPERATURE ALARM REPORT else if (channel_id === 0xff && channel_type === 0x0d) { const mode_dictionary = { 0: "disable", 1: "below", 2: "above", 3: "within", 4: "above_or_below", }; const mode = mode_dictionary[parseInt(bytes.slice(i, i + 1).readInt8(), 2)]; const min = readInt16LE(bytes.slice(i + 1, i + 3)) / 10; const max = readInt16LE(bytes.slice(i + 3, i + 5)) / 10; const cur = readInt16LE(bytes.slice(i + 5, i + 7)) / 10; decoded.push( { variable: "temperature_alarm_report_mode", value: mode }, { variable: "temperature_alarm_report_lower_warning_threshold", value: min === 999.9 ? null : min, unit: min === 999.9 ? null : "°C" }, { variable: "temperature_alarm_report_upper_warning_threshold", value: max, unit: "°C" }, { variable: "temperature_alarm_report_current_temperature", value: cur, unit: "°C" } ); i += 7; } else { return [{ variable: "parser_error", value: "Syntax error: operation is not supported" }]; } } return decoded; } // let payload = [{ variable: "payload", value: "ff0d0a0f27c8002d01" }]; const data = payload.find((x) => x.variable === "payload_raw" || x.variable === "payload" || x.variable === "data"); if (data) { const buffer = Buffer.from(data.value, "hex"); const serie = new Date().getTime(); payload = payload.concat(Decoder(buffer)).map((x) => ({ ...x, serie })); }