Extracting gps coordinates from abeeway tracker

[bachloo.rahul]

payload

{"applicationID":"1","applicationName":"cloud","data":"A0i4eAAKEOwyLd8tBfZMpg==","devEUI":"20635f01080016e9","deviceName":"ab8","fCnt":23,"fPort":17,"rxInfo":[{"altitude":0,"latitude":0,"loRaSNR":9,"longitude":0,"mac":"24e124fffef0a78e","name":"24e124fffef0a78e","rssi":-62,"time":"2021-01-26T06:25:31.188652Z"}],"time":"2021-01-26T06:25:31.188652Z","txInfo":{"adr":true,"codeRate":"4/5","dataRate":{"bandwidth":125,"modulation":"LORA","spreadFactor":7},"frequency":865402500}}

flow

[{"id":"959d3557.cd9348","type":"tab","label":"Flow 4","disabled":false,"info":""},{"id":"c210c881.13fa48","type":"mqtt in","z":"959d3557.cd9348","name":"","topic":"bachloo.rahul@gmail.com/test","qos":"0","datatype":"auto","broker":"c374bf02.4cc37","x":160,"y":60,"wires":[["5ed9595c.6c3da8"]]},{"id":"ad901abe.c4e568","type":"debug","z":"959d3557.cd9348","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":450,"y":220,"wires":[]},{"id":"5ed9595c.6c3da8","type":"function","z":"959d3557.cd9348","name":"","func":"var t=JSON.parse(msg.payload);\nmsg.payload=t.data;\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":260,"y":120,"wires":[["608edfd5.d8e4c"]]},{"id":"608edfd5.d8e4c","type":"base64","z":"959d3557.cd9348","name":"","action":"","property":"payload","x":430,"y":120,"wires":[["2ef05839.acaba8"]]},{"id":"2ef05839.acaba8","type":"buffer-parser","z":"959d3557.cd9348","name":"","data":"payload.data","dataType":"msg","specification":"spec","specificationType":"ui","items":[{"type":"byte","name":"lat","offset":6,"length":3,"offsetbit":0,"scale":"1","mask":""},{"type":"byte","name":"lon","offset":9,"length":3,"offsetbit":0,"scale":"1","mask":""}],"swap1":"","swap2":"","swap3":"","swap1Type":"swap","swap2Type":"swap","swap3Type":"swap","msgProperty":"payload.data","msgPropertyType":"str","resultType":"keyvalue","resultTypeType":"output","multipleResult":false,"fanOutMultipleResult":false,"setTopic":true,"outputs":1,"x":500,"y":160,"wires":[["ad901abe.c4e568"]]},{"id":"c374bf02.4cc37","type":"mqtt-broker","name":"local","broker":"maqiatto.com","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","closeTopic":"","closeQos":"0","closePayload":"","willTopic":"","willQos":"0","willPayload":""}]

Abeeway Micro Tracker_Reference_Guide_FW1.9_0.5.pdf (1.4 MB)

[Steve-Mcl]

Use a debug - what comes out of the base64 node?

the error about data not being an array or buffer is a huge clue!

[bachloo.rahul]

yes steve now able to see latitude and longitude in terms of array of object.

Thanks for guidance steve now we are able to see latitude and longitude.