Tag: MQTT

Hi all, I am in need of repositioning my z-wave stick. To easily overcome the hurdle of moving my entire OH setup as well, I thought I go with zwavejs2mqtt…Read moreMQTT binding, link dimmer – Bindings

Hi MQTT operates over a TCP socket or a secure TCP socket and so any number of instances should be possible. This has nothing to do with Ethernet or the…Read moreSolved: Re: does MQTT library support 2 brokers?

Answer #1: The protocol overhead of MQTT is extremely small, the smallest packet has only 2 bytes overhead. The payload-to-overhead ratio is typically extremely good. It’s also a binary protocol…Read moreWhy MQTT is called as “light weight” messaging protocol?

In MQTT 5.0 specification, it states that ‘If PUBACK or PUBREC is received containing a Reason Code of 0x80 or greater the corresponding PUBLISH packet is treated as acknowledged’ But…Read moreMQTT 5.0 Message delivery retry and reason code

Yesterday I tested this new code that Charlie thankfully put together for the MQTT simple allowing publishing over the UART.  Problem I have now is that I’m getting an mqtt_connect…Read moreMQTT_CONNECT error -116 — Charlie’s updated example of mqtt simple with UART that SImon originally did but compiles for 1.7.0 – Nordic Q&A – Nordic DevZone

Issue: My gateway (RAK7240) can’t connect to the MQTT broker of our server, even though I set it up with the same configuration as the other gateways that I have…Read moreFail to connect to the MQTT broker – RAK7240

Hi there, I’ve got a lot of MQTT items like this in the (old) textual definition: String ws_heute_vormittag_text “Wetter Heute Vormittag Txt” {mqtt=”<[mqtt:weatherservice/heute_vormittag/text:state:default]”}String ws_heute_vormittag_image “Wetter Heute Vormittag Image” {mqtt=”<[mqtt:weatherservice/heute_vormittag/image:state:default]”} In…Read moreOH3: Import MQTT items? – Beginners

You don’t say which version of MQTT you are using. If you’re using MQTT 3.1.1, you’re kind-of stuck. MQTT 3.1.1 provides no “maximum packet size”, and it provides no way…Read moreIncome buffer is to small for a payload sent with QoS1