interesting small zigbee sensor from Aquara. Easy to install and run in a smart home.
Includes calculation of relative pressure depending on the hight above sea-level.
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pressure","label":"","format":"{{msg.payload}}","layout":"row-center","className":"","style":true,"font":"","fontSize":16,"color":"#137000","x":800,"y":1420,"wires":[]},{"id":"b8e2c68a2126c8d8","type":"function","z":"9469147d85cf6677","name":"Tendenz 6","func":"let p = msg.payload;\nif (context.get('last_value') === 0) {\n msg.payload = date_time_string() + ' ' + p;\n}\nelse if (msg.payload < context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-down fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload === context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-right fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload > context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-up fa-1x\" aria-hidden=\"true\"></i>';\n}\ncontext.set('last_value', p);\nreturn msg;\n\nfunction date_time_string() {\n const date = new Date(Date.now());\n //const year = date.getFullYear();\n //const month = (\"0\" + (date.getMonth() + 1)).slice(-2);\n //const day = (\"0\" + date.getDate()).slice(-2);\n const hours = (\"0\" + date.getHours()).slice(-2);\n const minutes = (\"0\" + date.getMinutes()).slice(-2);\n const seconds = (\"0\" + date.getSeconds()).slice(-2);\n// let datetimestring = day + \"-\" + month + \"-\" + year + \" \" + hours + ':' + minutes + ':' + seconds;\n let datetimestring = hours + ':' + minutes + ':' + seconds; \n return datetimestring;\n}","outputs":1,"noerr":0,"initialize":"// Code added here will be run once\n// whenever the node is started.\nnode.send({ payload: \" \" });\ncontext.set('last_value', 0);\n","finalize":"","libs":[],"x":590,"y":1500,"wires":[["7136c769628a1a32"]]},{"id":"940759d7c168dd45","type":"function","z":"9469147d85cf6677","name":"Tendenz 4","func":"let p = msg.payload;\nif (context.get('last_value') === 0) {\n msg.payload = date_time_string() + ' ' + p;\n}\nelse if (msg.payload < context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-down fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload === context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-right fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload > context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-up fa-1x\" aria-hidden=\"true\"></i>';\n}\ncontext.set('last_value', p);\nreturn msg;\n\nfunction date_time_string() {\n const date = new Date(Date.now());\n //const year = date.getFullYear();\n //const month = (\"0\" + (date.getMonth() + 1)).slice(-2);\n //const day = (\"0\" + date.getDate()).slice(-2);\n const hours = (\"0\" + date.getHours()).slice(-2);\n const minutes = (\"0\" + date.getMinutes()).slice(-2);\n const seconds = (\"0\" + date.getSeconds()).slice(-2);\n// let datetimestring = day + \"-\" + month + \"-\" + year + \" \" + hours + ':' + minutes + ':' + seconds;\n let datetimestring = hours + ':' + minutes + ':' + seconds; \n return datetimestring;\n}","outputs":1,"noerr":0,"initialize":"// Code added here will be run once\n// whenever the node is started.\nnode.send({ payload: \" \" });\ncontext.set('last_value', 0);\n","finalize":"","libs":[],"x":590,"y":1340,"wires":[["ece0ca3c13272297"]]},{"id":"712aa9f75a6c7344","type":"function","z":"9469147d85cf6677","name":"Tendenz 3","func":"let p = msg.payload;\nif (context.get('last_value') === 0) {\n msg.payload = date_time_string() + ' ' + p;\n}\nelse if (msg.payload < context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-down fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload === context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-right fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload > context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-up fa-1x\" aria-hidden=\"true\"></i>';\n}\ncontext.set('last_value', p);\nreturn msg;\n\nfunction date_time_string() {\n const date = new Date(Date.now());\n //const year = date.getFullYear();\n //const month = (\"0\" + (date.getMonth() + 1)).slice(-2);\n //const day = (\"0\" + date.getDate()).slice(-2);\n const hours = (\"0\" + date.getHours()).slice(-2);\n const minutes = (\"0\" + date.getMinutes()).slice(-2);\n const seconds = (\"0\" + date.getSeconds()).slice(-2);\n// let datetimestring = day + \"-\" + month + \"-\" + year + \" \" + hours + ':' + minutes + ':' + seconds;\n let datetimestring = hours + ':' + minutes + ':' + seconds; \n return datetimestring;\n}","outputs":1,"noerr":0,"initialize":"// Code added here will be run once\n// whenever the node is started.\nnode.send({ payload: \" \" });\ncontext.set('last_value', 0);\n","finalize":"","libs":[],"x":590,"y":1260,"wires":[["acf1c7535b9056df"]]},{"id":"a71d1eafc3148778","type":"function","z":"9469147d85cf6677","name":"Tendenz 2","func":"let p = msg.payload;\nif (context.get('last_value') === 0) {\n msg.payload = date_time_string() + ' ' + p;\n}\nelse if (msg.payload < context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-down fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload === context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-right fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload > context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-up fa-1x\" aria-hidden=\"true\"></i>';\n}\ncontext.set('last_value', p);\nreturn msg;\n\nfunction date_time_string() {\n const date = new Date(Date.now());\n //const year = date.getFullYear();\n //const month = (\"0\" + (date.getMonth() + 1)).slice(-2);\n //const day = (\"0\" + date.getDate()).slice(-2);\n const hours = (\"0\" + date.getHours()).slice(-2);\n const minutes = (\"0\" + date.getMinutes()).slice(-2);\n const seconds = (\"0\" + date.getSeconds()).slice(-2);\n// let datetimestring = day + \"-\" + month + \"-\" + year + \" \" + hours + ':' + minutes + ':' + seconds;\n let datetimestring = hours + ':' + minutes + ':' + seconds; \n return datetimestring;\n}","outputs":1,"noerr":0,"initialize":"// Code added here will be run once\n// whenever the node is started.\nnode.send({ payload: \" \" });\ncontext.set('last_value', 0);\n","finalize":"","libs":[],"x":590,"y":1180,"wires":[["618e5dc9dd362adf"]]},{"id":"45d4333138dae825","type":"function","z":"9469147d85cf6677","name":"Tendenz 1","func":"let p = msg.payload;\nif (context.get('last_value') === 0) {\n msg.payload = date_time_string() + ' ' + p;\n}\nelse if (msg.payload < context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-down fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload === context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-right fa-1x\" aria-hidden=\"true\"></i>';\n}\nelse if (msg.payload > context.get('last_value')) {\n msg.payload = date_time_string() + ' ' + p + ' ' + '<i class=\"fa fa-arrow-circle-up fa-1x\" aria-hidden=\"true\"></i>';\n}\ncontext.set('last_value', p);\nreturn msg;\n\nfunction date_time_string() {\n const date = new Date(Date.now());\n //const year = date.getFullYear();\n //const month = (\"0\" + (date.getMonth() + 1)).slice(-2);\n //const day = (\"0\" + date.getDate()).slice(-2);\n const hours = (\"0\" + date.getHours()).slice(-2);\n const minutes = (\"0\" + date.getMinutes()).slice(-2);\n const seconds = (\"0\" + date.getSeconds()).slice(-2);\n// let datetimestring = day + \"-\" + month + \"-\" + year + \" \" + hours + ':' + minutes + ':' + seconds;\n let datetimestring = hours + ':' + minutes + ':' + seconds; \n return datetimestring;\n}","outputs":1,"noerr":0,"initialize":"// Code added here will be run once\n// whenever the node is started.\nnode.send({ payload: \" \" });\ncontext.set('last_value', 0);\n","finalize":"","libs":[],"x":590,"y":1100,"wires":[["a1ee4e75123efc29"]]},{"id":"67e7ccc7233608f6","type":"mqtt-broker","name":"mqtt-broker","broker":"10.0.0.43:1883","port":"1883","clientid":"","autoConnect":true,"usetls":false,"protocolVersion":"4","keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","birthMsg":{},"closeTopic":"","closeQos":"0","closePayload":"","closeMsg":{},"willTopic":"","willQos":"0","willPayload":"","willMsg":{},"sessionExpiry":""},{"id":"e25da20c3f5e7e14","type":"ui_group","name":"Aquara Sensors WSDCGQ11LM","tab":"f107620a99de236b","order":1,"disp":true,"width":"22","collapse":false,"className":""},{"id":"f107620a99de236b","type":"ui_tab","name":"Sensors","icon":"dashboard","order":5,"disabled":false,"hidden":false}]
