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workflows/IOT device control with MQTT and webhook-4211/iot_device_control_with_mqtt_and_webhook.json

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+{"id":"01UHgh673YDyv5xN","meta":{"instanceId":"7221598654c32899e94731aab144bdcd338735c2ac218dc0873131caa0be0ef8","templateCredsSetupCompleted":true},"name":"IOT control via MQTT and webhook","tags":[],"nodes":[{"id":"3d3b2e80-4e4e-43ec-b2fd-7000e7307915","name":"MQTT Publish Topic Node","type":"n8n-nodes-base.mqtt","position":[680,-20],"parameters":{"topic":"pin-control","message":"={{ $json.pin }}","options":{},"sendInputData":false},"credentials":{"mqtt":{"id":"xtd75tjk1hKlQOba","name":"MQTT account"}},"typeVersion":1},{"id":"f4444f19-424a-487b-8d7c-3c609a55b913","name":"Set data for MQTT message payload","type":"n8n-nodes-base.set","position":[360,-20],"parameters":{"values":{"string":[{"name":"pin","value":"={{ $json.query.value }}"}]},"options":{},"keepOnlySet":true},"typeVersion":1},{"id":"3ed996b8-419f-458a-a717-b35e1a52a851","name":"IOT control Webhook ","type":"n8n-nodes-base.webhook","position":[20,-20],"webhookId":"69036479-fe77-40e1-a700-8a2e2602e0c8","parameters":{"path":"pin-control","options":{}},"typeVersion":1},{"id":"40fa6c2a-c515-412b-93df-eceb993c38c9","name":"Sticky Note","type":"n8n-nodes-base.stickyNote","position":[-60,-160],"parameters":{"height":120,"content":"When the \"on\" or \"off\" button is clicked on the IOT control webpage the webhook gets the selected value and triggers the workflow "},"typeVersion":1},{"id":"159f8c6e-285a-443a-bd9d-ae3456b9a6a8","name":"Sticky Note1","type":"n8n-nodes-base.stickyNote","position":[300,-140],"parameters":{"height":80,"content":"The set node prepares the receive data as a message payload for the MQTT topic"},"typeVersion":1},{"id":"250140e6-f46c-42c2-b79a-537ec4975b97","name":"Sticky Note2","type":"n8n-nodes-base.stickyNote","position":[620,-160],"parameters":{"height":100,"content":"Publishes MQTT topic \"pin-control\" with the payload data to control the GPIO on the ESP32 microcontroller"},"typeVersion":1}],"active":false,"pinData":{},"settings":{"executionOrder":"v1"},"versionId":"f5d124a9-c6e1-44f5-b088-cafb8e5bd602","connections":{"IOT control Webhook ":{"main":[[{"node":"Set data for MQTT message payload","type":"main","index":0}]]},"Set data for MQTT message payload":{"main":[[{"node":"MQTT Publish Topic Node","type":"main","index":0}]]}}}