5$ DIY radiation shield

I made some fun project for weather monitoring for measuring temperature, humidity, pressure using BME 680, lora modul and my first sensor like this

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And after a couple days i realize the sensor measuring temperature is too high maybe because sensor measuring inside the box, after googling and looking other solution and my idea is making radiation shield and i end up with DIY radiation shield using some cheap plastic plates.

I bought 2$ for 8 plastic plates but i only use 6 because my sensor is small, and i also buy some spacer for mounting the plates its 2$ for 20 spacer i’m using 1 inches spacer, and 1$ for other material like cable ties and also spray paint

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And this is it my cheap radiation shield 🙂 and i’m happy for the result

Happy Coding

Salam ngoprek

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Mqtt publish wemos D1 Mini + dht22 in platform io

This is my weekend project using wemos D1 mini for publishing data to mqtt broker using platform io in visual studio code, here we go the code

https://github.com/susiloharjo/dht22_wemosd1_mqtt_platformio

Salam ngoprek

Happy Coding

 

Displaying data from RHF1S001 in node-red

The RisingHF’s Temperature and humidity LoRaWAN sensor node RHF1S001 is aimed at outdoor application with it’s IP64 protection level. And thanks to it’s high performance internal antenna and LoRa technology used, the sensor could operate in extremely hard environment or ultra-long range application. In addition to all above, the ultra-low sleep current help it to work in a long life, 5 years (uplink every 2 minutes) or even 10 (uplink every 5 minutes) years.

Here is sample code to displaying data to dashboard node-red, Raw data taken from MQTT convert to JSON Object.

[{"id":"4e63f2ca.376b64","type":"mqtt in","z":"b6605d08.a927b","name":"","topic":"thrf/#","qos":"2","broker":"ce3645f8.a18d78","x":70,"y":2920,"wires":[["9c30a7cc.16ac38"]]},{"id":"a4fb0e04.52f6b","type":"function","z":"b6605d08.a927b","name":"decode temp","func":"var obj = msg.payload;\nvar data = obj.data;\n\nvar temp1 = data.toString().substr(2, 2);\nvar temp2 = data.toString().substr(4, 2);\nvar temp = temp2 + temp1;\n// var tmp = \"0x\" + temp; \n\nfunction hexToDec(hex) {\n return hex.toLowerCase().split('').reduce( (result, ch) =>\n result * 16 + '0123456789abcdefgh'.indexOf(ch), 0);\n}\n\nvar value = hexToDec(temp);\n\nvar t = ((175 * value)/65536) - 46.85;\n\nmsg.payload = t.toFixed(2);\n// return msg;\n// msg.payload = obj.data;\nreturn msg;","outputs":1,"noerr":0,"x":430,"y":2980,"wires":[["db7f0faf.eec008"]]},{"id":"de0b9d41.21bd3","type":"function","z":"b6605d08.a927b","name":"data","func":"var obj = msg.payload;\nmsg.payload = obj.data;\nreturn msg;","outputs":1,"noerr":0,"x":410,"y":2920,"wires":[["88553271.5b5678"]]},{"id":"88553271.5b5678","type":"debug","z":"b6605d08.a927b","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":590,"y":2920,"wires":[]},{"id":"9c30a7cc.16ac38","type":"json","z":"b6605d08.a927b","name":"","property":"payload","action":"obj","pretty":true,"x":210,"y":2920,"wires":[["de0b9d41.21bd3","a4fb0e04.52f6b","3ef4e4a1.49fcac","cbbcecc.d9fbc9"]]},{"id":"3ef4e4a1.49fcac","type":"function","z":"b6605d08.a927b","name":"decode hum","func":"var obj = msg.payload;\nvar data = obj.data;\n\n\nvar humidity = data.toString().substr(6, 2);\n// var hum = \"0x\" + humidity; \n\nfunction hexToDec(hex) {\n return hex.toLowerCase().split('').reduce( (result, ch) =>\n result * 16 + '0123456789abcdefgh'.indexOf(ch), 0);\n}\n\nvar value = hexToDec(humidity);\n\n\nvar RH = (((125 * value)/256) -6);\n\nmsg.payload = RH.toFixed(2);\n\n// return msg;\n// msg.payload = obj.data;\nreturn msg;","outputs":1,"noerr":0,"x":430,"y":3040,"wires":[["3dd9c892.32f9b8"]]},{"id":"cbbcecc.d9fbc9","type":"function","z":"b6605d08.a927b","name":"decode batt","func":"var obj = msg.payload;\nvar data = obj.data;\nvar batt = data.toString().substr(16, 2);\n\nfunction hexToDec(hex) {\n return hex.toLowerCase().split('').reduce( (result, ch) =>\n result * 16 + '0123456789abcdefgh'.indexOf(ch), 0);\n}\n\n\n\nmsg.payload = (hexToDec(batt) + 150) * 0.01;\n\n// msg.payload = RH.toFixed(2);\n\n// return msg;\n// msg.payload = obj.data;\nreturn msg;","outputs":1,"noerr":0,"x":430,"y":3100,"wires":[["c70731a.a7ba85"]]},{"id":"3dd9c892.32f9b8","type":"ui_chart","z":"b6605d08.a927b","name":"","group":"44b692c4.bec04c","order":0,"width":0,"height":0,"label":"hum rhf","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"3600","cutout":0,"useOneColor":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"useOldStyle":false,"x":640,"y":3040,"wires":[[],[]]},{"id":"c70731a.a7ba85","type":"ui_chart","z":"b6605d08.a927b","name":"","group":"44b692c4.bec04c","order":0,"width":0,"height":0,"label":"batt rhf","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"3600","cutout":0,"useOneColor":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"useOldStyle":false,"x":640,"y":3100,"wires":[[],[]]},{"id":"db7f0faf.eec008","type":"ui_chart","z":"b6605d08.a927b","name":"","group":"44b692c4.bec04c","order":0,"width":0,"height":0,"label":"temperture rhf","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"3600","cutout":0,"useOneColor":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"useOldStyle":false,"x":660,"y":2980,"wires":[[],[]]},{"id":"ce3645f8.a18d78","type":"mqtt-broker","z":"","name":"loralocal","broker":"00.00.00.00","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","closeTopic":"","closeQos":"0","closePayload":"","willTopic":"","willQos":"0","willPayload":""},{"id":"44b692c4.bec04c","type":"ui_group","z":"","name":"RHF","tab":"b031aecd.a463f","order":1,"disp":true,"width":"6","collapse":false},{"id":"b031aecd.a463f","type":"ui_tab","z":"","name":"GATEWAY","icon":"desktop_mac","order":2}]

Datasheet sensor

http://www.risinghf.com/#/product-details?product_id=1&lang=en