This is some sketch for B-L072Z-LRWAN1 a.k.a STM32L0 Discovery kit LoRa, Sigfox, low-power wireless from ST, This Discovery kit features the all-in-one CMWX1ZZABZ-091 open module by Murata.
This is some sample arduoino sketch you can open my github here
Happy Coding
Salam ngoprek
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"}]
function Decoder(bytes, port) {
var obj = new Object();
//temp
var tempEncoded=(bytes[2]<<8)|(bytes[1]);
var tempDecoded=(tempEncoded*175.72/65536)-46.85;
obj.temp=tempDecoded.toFixed(2);
//humidity
var humEncoded=(bytes[3]);
var humDecoded=(humEncoded*125/256)-6;
obj.hum=humDecoded.toFixed(2);
//period
var periodEncoded=(bytes[5]<<8)|(bytes[4]);
var periodDecoded=(periodEncoded*2);
obj.period=periodDecoded+" sec";
//battery
var batteryEncoded=(bytes[8]);
var batteryDecoded=(batteryEncoded+150)*0.01;
obj.battery=batteryDecoded.toFixed(2);
return obj;
}
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
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 …
Bagi rekan rekan sekalian yang tertarik dengan dunia IOT, atau malah sudah mulai duluan dengan IOT, pasti tidak asing dengan the things network, the things network adalah komutas IOT global yang sudah ada di 90 negara dan memiliki member 23.068 orang, komunitas ini adalah komunitas IOT yang memanfaatkan teknologi LPWAN (Low Power Radio WAN) untuk menghubungkan sensor sensor IOT ke internet sehingga kita bisa mengakses sensor2 tersebut melalui internet.
Aplikasi ini adalah memanfaatkan komunitas sehingga apabila semakin banyak yang memasang gateway yang terhubung dengan jaringan TTN maka semakin banyak pula orang yang bisa menghubungkan sensor/nodenya keinternet menggunakan freq LPWAN tersebut.
Nah kebetulan saya berada di Jakarta, maka saya tertarik untuk mengembangkan teknologi ini di Jakarta, dan tentunya tidak bisa sendiri, kalau mau mengembangkan TTN dan membuat jaringan lorawan diseluruh jakarta atau bahkan di seluruh Indonesia.
Apa yang bisa dilakukan TTN, banyak hal kalau gateway kita sudah banyak kita bisa memanfaatkannya menjadi backend untuk memonitoring misal pintu air untuk memonitor banjir, smart garden, atau GPS Tracker, dan semuanya dijamin aman karena data data tersebut dienkripsi sehingga benar benar hanya kita yang bisa memonitor (kalau kita buat private) kalau data2 tersebut dibuat public tentu saja bisa bermanfaat orang lain misalkan notifikasi banjir via twitter dll.
kak eko 