Parsing data from mqtt ttn


Postingan kali ini adalah lanjutan dari postingan saya sebelumnya disini , nah pada postingan saya kali ini akan membahas bagaimana cara memparsing data json yang kita dapat dari ttn kemudian menampilkannya ke dalam dashboard, sehingga hasilnya seperti dibawah ini

[{"id":"1f1f6ed1.81cf91","type":"mqtt in","z":"7609c47a.c51b3c","name":"","topic":"+/devices/+/up","qos":"2","broker":"7833904b.af11d","x":220,"y":200,"wires":[["d839d790.4b77c8"]]},{"id":"d839d790.4b77c8","type":"json","z":"7609c47a.c51b3c","name":"","property":"payload","action":"obj","pretty":true,"x":470,"y":200,"wires":[["e2efc94c.1de158","47698174.a787f","9db17467.71c868","b38807c2.074058","6cc7cd06.b7c634"]]},{"id":"e2efc94c.1de158","type":"function","z":"7609c47a.c51b3c","name":"battery","func":"var obj = msg.payload;\nmsg.payload = obj.payload_fields.analog_in_3;\nreturn msg;","outputs":1,"noerr":0,"x":720,"y":180,"wires":[["9ea82fec.53c49"]]},{"id":"47698174.a787f","type":"function","z":"7609c47a.c51b3c","name":"temperature","func":"var obj = msg.payload;\nmsg.payload = obj.payload_fields.temperature_1;\nreturn msg;","outputs":1,"noerr":0,"x":710,"y":240,"wires":[["491b941b.7cb80c"]]},{"id":"9db17467.71c868","type":"function","z":"7609c47a.c51b3c","name":"humidity","func":"var obj = msg.payload;\nmsg.payload = obj.payload_fields.relative_humidity_2;\nreturn msg;","outputs":1,"noerr":0,"x":700,"y":300,"wires":[["754ca03c.46161"]]},{"id":"491b941b.7cb80c","type":"ui_chart","z":"7609c47a.c51b3c","name":"","group":"7fb7eee3.fc934","order":1,"width":0,"height":0,"label":"Temperature","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"86400","cutout":0,"useOneColor":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"useOldStyle":false,"x":930,"y":240,"wires":[[],[]]},{"id":"9ea82fec.53c49","type":"ui_gauge","z":"7609c47a.c51b3c","name":"","group":"d98f26c6.56b8b8","order":1,"width":0,"height":0,"gtype":"gage","title":"Battery","label":"units","format":"{{value}}","min":0,"max":10,"colors":["#00b500","#e6e600","#ca3838"],"seg1":"","seg2":"","x":920,"y":180,"wires":[]},{"id":"754ca03c.46161","type":"ui_chart","z":"7609c47a.c51b3c","name":"","group":"7fb7eee3.fc934","order":2,"width":0,"height":0,"label":"Humidity","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"86400","cutout":0,"useOneColor":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"useOldStyle":false,"x":920,"y":300,"wires":[[],[]]},{"id":"b38807c2.074058","type":"function","z":"7609c47a.c51b3c","name":"rssi","func":"var obj = msg.payload;\nmsg.payload = obj.metadata.gateways[0].rssi;\nreturn msg;","outputs":1,"noerr":0,"x":690,"y":360,"wires":[["9e68c3c6.729e5"]]},{"id":"9e68c3c6.729e5","type":"ui_chart","z":"7609c47a.c51b3c","name":"","group":"9a2e91ee.5594a","order":2,"width":0,"height":0,"label":"RSSI","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"86400","cutout":0,"useOneColor":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"useOldStyle":false,"x":910,"y":360,"wires":[[],[]]},{"id":"6cc7cd06.b7c634","type":"function","z":"7609c47a.c51b3c","name":"rssi","func":"var obj = msg.payload;\nmsg.payload = obj.metadata.gateways[0].snr;\nreturn msg;","outputs":1,"noerr":0,"x":690,"y":420,"wires":[["c2e09073.55f99"]]},{"id":"c2e09073.55f99","type":"ui_chart","z":"7609c47a.c51b3c","name":"","group":"9a2e91ee.5594a","order":3,"width":0,"height":0,"label":"SNR","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"86400","cutout":0,"useOneColor":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"useOldStyle":false,"x":910,"y":420,"wires":[[],[]]},{"id":"7833904b.af11d","type":"mqtt-broker","z":"","name":"application_name","broker":"asia-se.thethings.network","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","closeTopic":"","closeQos":"0","closePayload":"","willTopic":"","willQos":"0","willPayload":""},{"id":"7fb7eee3.fc934","type":"ui_group","z":"","name":"Chart","tab":"5d83a158.d5268","order":2,"disp":true,"width":"6","collapse":false},{"id":"d98f26c6.56b8b8","type":"ui_group","z":"","name":"Gauge","tab":"5d83a158.d5268","order":1,"disp":true,"width":"6","collapse":false},{"id":"9a2e91ee.5594a","type":"ui_group","z":"","name":"Others","tab":"5d83a158.d5268","order":3,"disp":true,"width":"6","collapse":false},{"id":"5d83a158.d5268","type":"ui_tab","z":"","name":"Home","icon":"timeline"}]
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Displaying data from RHF1S001 in node-red


rhf1s001The 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.

Screenshot from 2018-07-03 07-53-19

[{"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

lora mini dev and ttn


lora_mini_devKali ini nyobain lora module buatan dragino namanya lora mini dev, uniknya dari module ini adalah sudah jadi satu antara RF dan mikro kontrollernya, untuk programmingnya sendiri cukup mudah karena sudah ada usb nya jadi tinggal colok aja mikro usb bawaannya terus bisa diprogram menggunakan arduino ide.

Reviewnya menyusul ya ini tadi baru  test OTAA ke thethingsnetwork si lancar jaya cuman awalnya sempat bingung untuk pin mapping lmicnya, soalnya nyari nyari didokumentasinya ngga nemu.

Beruntung banget pas lagi browsing nemu, nah dibawah ini adalah pinout mappingnya karena kalau pinout ini salah dijamin lora mini dev ini ngga akan bekerja di lmic

 const lmic_pinmap lmic_pins = {
 .nss = 10,
 .rxtx = LMIC_UNUSED_PIN,
 .rst = 9,
 .dio = {2, 6, 7},
};

Silahkan yang pingin nyoba nyoba ini modul bisa pake lmic standard tinggal nanti menyesuaikan lmicnya seperti diatas.

kalau mau liat2 codingannya ke github saya disini tinggal ganti lmicnya seperti diatas

Happy Coding ..

Salam ngoprek …

connect to mqtt thethingsnetwork (ttn)


Akhirnya setelah kesana kemari browsing ketemu juga cara mqtt ke ttn kebetulan belakangan ini lagi iseng2 main lora dan gampangnya karena belum punya server sendiri saya pakai thethingsnetwork.org untuk test upload data ke server.

Nah semingguan ini saya penasaran ada ngga ya cara paling mudah untuk konek ke server ttn tanpa harus masuk ke console ttn, nah akhirnya ketemu juga caranya ternyata data kita di ttn bisa dibaca lewat mqtt.

Dengan mosquitto_sub kita bisa mengakses data di ttn, postingan ini sekali lagi bukan buat show off cuman sebagai catatan pribadi saya dan siapa tau bisa berguna buat yang lain juga.

mosquitto_sub -h <server>.thethings.network -t '+/devices/+/up' -u '<nama appid>' -P 'ttn-account-v2.<accesskey>' -v

Ganti beberapa paramater berikut saya bolak balik nyari akhirnya ketemu juga

  • <server> = server yang kita gunakan untuk upload data ke server ttn karena saya pake ttn handler asia sebagai server maka <server> saya ganti dengan asia-se
  • <nama appid> = lihat settingan di ttn ganti dengan Application ID
  • <access key> = ganti dengan access keys di bagian bawah applications

kalau berhasil maka di terminal kita akan muncul random text yang isinnya uplink data kita ke ttn atau mau lihat yang lain juga bisa baca baca formatnya disini

Semoga bermanfaat lanjut ngoprek …