I use V4.1 - maybe i need to restart the service after this changes…
Should not be needed, but give it a try.
Hi @Udo_Hartmann, @rlkoshak, @JimT, @Mherwege, @NilsOF, I finally managed to display the value correctly but I had to make settings in the battery bms. I divided the battery_voltage / 10 and now it displays correctly without any other changes in openhab.
static void publish_common_info(void) {
snprintf(mqtt_msg, sizeof(mqtt_msg),
"{\n"
" \"SOC\": %.3f,\n"
" \"StateOfHealth\": %.3f,\n"
" \"battery_voltage\": %d,\n"
" \"stat_batt_power\": %d,\n"
" \"temperature_min\": %.3f,\n"
" \"temperature_max\": %.3f,\n"
" \"cell_max_voltage\": %d,\n"
" \"cell_min_voltage\": %d\n"
"}\n",
((float)SOC) / 100.0, ((float)StateOfHealth) / 100.0, battery_voltage / 10, stat_batt_power, ((float)((int16_t)temperature_min)) / 10.0,
((float)((int16_t)temperature_max)) / 10.0, cell_max_voltage, cell_min_voltage);
bool result = client.publish("battery/info", mqtt_msg, true);
Just in this way works for me but thanks for your precios time and help 
That is the best solution possible! We’re used to thinking that we can’t change the source and to work with what we’ve got
@Udo_Hartmann I tested this in a rule. I don’t know where this comes from, but to put this straight: DV does not work, dV does work. There is no confusion with d (days) at all, as this is an individual character and not a multiplier character coming before another unit.
Here is my Blockly rule test, with result log:
2024-02-12 12:36:44.671 [INFO ] [nhab.automation.script.ui.f761a45195] - Voltage (dV): 10 dV
2024-02-12 12:36:44.673 [INFO ] [nhab.automation.script.ui.f761a45195] - Voltage (V): 1 V
2024-02-12 12:36:44.774 [ERROR] [b.automation.script.javascript.stack] - Failed to execute script:
org.graalvm.polyglot.PolyglotException: Error: Failed to create QuantityType from 10DV: java.lang.IllegalArgumentException: Invalid Quantity value: 10DV
at <js>.t(@openhab-globals.js:2) ~[?:?]
at <js>.e(@openhab-globals.js:2) ~[?:?]
at <js>.A(@openhab-globals.js:2) ~[?:?]
at <js>.getQuantity(@openhab-globals.js:2) ~[?:?]
at <js>.:program(<eval>:7) ~[?:?]
at org.graalvm.polyglot.Context.eval(Context.java:399) ~[?:?]
at com.oracle.truffle.js.scriptengine.GraalJSScriptEngine.eval(GraalJSScriptEngine.java:458) ~[?:?]
at com.oracle.truffle.js.scriptengine.GraalJSScriptEngine.eval(GraalJSScriptEngine.java:426) ~[?:?]
at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:262) ~[java.scripting:?]
at org.openhab.automation.jsscripting.internal.scriptengine.DelegatingScriptEngineWithInvocableAndAutocloseable.eval(DelegatingScriptEngineWithInvocableAndAutocloseable.java:53) ~[?:?]
at org.openhab.automation.jsscripting.internal.scriptengine.InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable.eval(InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable.java:78) ~[?:?]
at org.openhab.automation.jsscripting.internal.scriptengine.DelegatingScriptEngineWithInvocableAndAutocloseable.eval(DelegatingScriptEngineWithInvocableAndAutocloseable.java:53) ~[?:?]
at org.openhab.automation.jsscripting.internal.scriptengine.InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable.eval(InvocationInterceptingScriptEngineWithInvocableAndAutoCloseable.java:78) ~[?:?]
at org.openhab.core.automation.module.script.internal.handler.ScriptActionHandler.lambda$0(ScriptActionHandler.java:71) ~[?:?]
at java.util.Optional.ifPresent(Optional.java:178) ~[?:?]
at org.openhab.core.automation.module.script.internal.handler.ScriptActionHandler.execute(ScriptActionHandler.java:68) ~[?:?]
at org.openhab.core.automation.internal.RuleEngineImpl.executeActions(RuleEngineImpl.java:1188) ~[?:?]
at org.openhab.core.automation.internal.RuleEngineImpl.runNow(RuleEngineImpl.java:1039) ~[?:?]
at org.openhab.core.automation.rest.internal.RuleResource.runNow(RuleResource.java:380) ~[?:?]
at org.openhab.core.automation.rest.internal.RuleResource.runNow(RuleResource.java:397) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
at org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:179) ~[bundleFile:3.6.2]
at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:96) ~[bundleFile:3.6.2]
at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:201) ~[bundleFile:3.6.2]
at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:104) ~[bundleFile:3.6.2]
at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:59) ~[bundleFile:3.6.2]
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:96) ~[bundleFile:3.6.2]
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307) ~[bundleFile:3.6.2]
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121) ~[bundleFile:3.6.2]
at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:265) ~[bundleFile:3.6.2]
at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:234) ~[bundleFile:3.6.2]
at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:208) ~[bundleFile:3.6.2]
at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:160) ~[bundleFile:3.6.2]
at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:225) ~[bundleFile:3.6.2]
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:304) ~[bundleFile:3.6.2]
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:217) ~[bundleFile:3.6.2]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:517) ~[bundleFile:4.0.4]
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:279) ~[bundleFile:3.6.2]
at org.ops4j.pax.web.service.spi.servlet.OsgiInitializedServlet.service(OsgiInitializedServlet.java:102) ~[bundleFile:?]
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1656) ~[bundleFile:9.4.52.v20230823]
at org.ops4j.pax.web.service.spi.servlet.OsgiFilterChain.doFilter(OsgiFilterChain.java:100) ~[bundleFile:?]
at org.ops4j.pax.web.service.jetty.internal.PaxWebServletHandler.doHandle(PaxWebServletHandler.java:320) ~[bundleFile:?]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:600) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:505) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234) ~[bundleFile:9.4.52.v20230823]
at org.ops4j.pax.web.service.jetty.internal.PrioritizedHandlerCollection.handle(PrioritizedHandlerCollection.java:96) ~[bundleFile:?]
at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:722) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487) ~[bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883) [bundleFile:9.4.52.v20230823]
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034) [bundleFile:9.4.52.v20230823]
at java.lang.Thread.run(Thread.java:840) [?:?]
2024-02-12 12:36:44.813 [ERROR] [internal.handler.ScriptActionHandler] - Script execution of rule with UID 'f761a45195' failed: org.graalvm.polyglot.PolyglotException: Error: Failed to create QuantityType from 10DV: java.lang.IllegalArgumentException: Invalid Quantity value: 10DV
Why this did not work with the mqtt binding, I don’t know, but there must be another reason. I looked at the mqtt binding code and I didn’t see any specific treatment.
Hi @Udo_Hartmann , thanks for the answer - I tested that Blocky too but I still have an ear stuck there and I have no idea how to get it out. I changed in the BMS of the battery the way it sends the voltage and it works without any other changes in Openhab.
You are extremely advanced compared to me at openhab - probably I use 1% of the maximum capacity of OpenHab or maybe 0.1%
Well, it came from openHAB logs…
But… strange things… now working correctly with dV. Sometimes there are some really things going on…
It is completely diffuse to me (I AM alergic to JSON, but I can see its technical use)
Where do that decivolt come from?
Instead of takin the time to classify the value as the quasi deci, why not convert it to real volt measurment?