当遇到“mqtt cannot parse a frame on connection”的错误时,通常表示MQTT客户端在尝试解析从服务器接收到的帧时遇到了问题。这可能是由多种原因导致的。以下是一些排查和解决此问题的步骤: 检查MQTT帧格式是否正确: 确保客户端发送和接收的帧符合MQTT协议规范。例如,帧头、剩余长度、可变头部和有效载荷等部分都应...
Parses a givenBufferand emits synchronously all the MQTT packets that are included. Returns the number of bytes left to parse. If an error happens, anerrorevent will be emitted, but nopacketevents will be emitted after that. Callingparse()again clears the error and previous buffer, as if ...
Unable to parse JSON timestamp18: '{"name":"MQTT_sensor_jakis_18", "value_template" : "{{ value_json.timestamp | as_datetime().timestamp_custom("%b-%d-%H:%M:%S") }}", "state_topic": "homeassistant/sensor/CO_4/state", "expire_after":"210", "unique_id": "mqtt_moj_sensor...
I have an MQTT data source that provides a number of signals, as well as atimestampvariable. See below: In table view, this looks as below: I wish to use my parsedtimestampvariable as the X-axis, since it is critical to display the original recording time, rather than the time provid...
mqtt: sensor: - name: "OWL - Current" state_topic: "homeassistant/mains/current" unit_of_measurement: "A" Add a sensor for power estimation (facultative). Please note this value is calculated by multiplying the current with a fixed value (configurable in command line, default 230V). mqtt...
protocolId = parse_string(buf, len, pos); if (protocolId === null) return new Error('Parse error - cannot parse protocol id'); packet.protocolId = protocolId[0]; pos += protocolId[1] + 2;/* Parse protocol version number */ ...
A Node-RED node designed for processing and formatting data from MTConnect MQTT Agents. This node parses the incoming MQTT message and transforms it into a{MQTT Topic: Value}format, suitable for input to the InfluxDB node. Once stored in InfluxDB, users can visualize the parameter data using...
FOR converting data between BINARY STRUCT and JSON. It always be used for parse data between web application and socket protocols. Such as convert between MQTT and modbus(TCP or 485) - GitHub - osvlabs/struct-json: FOR converting data between BINARY STRU
A .net application to parse serial packets by a OWL CM160 energy meter and publish them on MQTT Broker in order to integrate with HomeAssistant - PBrunot/OwlCML160_MQTT
// Parse protocol id protocolId = parse_string(buf, len, pos); if (protocolId === null) return new Error('Parse error - cannot parse protocol id'); packet.protocolId = protocolId[0]; pos += protocolId[1] + 2;/* Parse protocol version number */ ...