Hi, This is probably pretty rudimentary but I can't seem to get it right. I have a JSON object containing a HEX value, im trying to change it to a float/decimal it's a temperature reading. [image]

Good spot. Updated the demo flow to use msg.payload.d.value... [{"id":"46f2e36d.79332c","type":"debug","z":"8712f97c.b302e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":1110,"y":100,"wires":[]},{"id":"5c3a833c.59b90c","type":"function","z":"8712f97c.b302e8","name":"","func":"msg.payload = Buffer.from(msg.payload.d.value,\"hex\").toString()\nreturn msg;","outputs":1,"noerr":0,"x":1110,"y":160,"wires":[["b874a36c.dd7ef"]]},{"id":"b874a36c.dd7ef","type":"debug","z":"8712f97c.b302e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":1290,"y":160,"wires":[]},{"id":"f1adb05f.c5deb","type":"inject","z":"8712f97c.b302e8","name":"","topic":"fake ibmiot","payload":"{\"d\":{\"value\":\"32352e3339\"}}","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":830,"y":100,"wires":[["5c3a833c.59b90c","46f2e36d.79332c"]]},{"id":"1cf837b5.8c22b8","type":"ibmiot in","z":"8712f97c.b302e8","authentication":"apiKey","apiKey":"8b357272.1f43","inputType":"evt","logicalInterface":"","ruleId":"","deviceId":"36C664","applicationId":"","deviceType":"+","eventType":"+","commandType":"","format":"json","name":"value","service":"registered","allDevices":false,"allApplications":"","allDeviceTypes":true,"allLogicalInterfaces":"","allEvents":true,"allCommands":"","allFormats":false,"qos":0,"x":870,"y":160,"wires":[["5c3a833c.59b90c"]]}]

General

steifanc 25 June 2020 10:23 21

Thank you !
That worked a treat ,

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Convert hex string to float

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