Hello, I'm new developing on node red, so I hope if anyone could help me, the problem is the next, I'm working on jsn-sr04t v2 via serial, so according to datasheet
I have to work with hexadecimal to convert to milimeters, I have to join the firts value with the second on hexadecimal format the convert it to decimal
As you can see, the result was in buffer, I don't know how to end this project successfully, could anyone help me
my flow is the next
[{"id":"fca4437d.e3677","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"a78840dc.fbf4b","type":"delay","z":"fca4437d.e3677","name":"","pauseType":"rate","timeout":"5","timeoutUnits":"seconds","rate":"1","nbRateUnits":"5","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":true,"x":340,"y":400,"wires":[["4b538ea1.7f0f","7ae01f3a.eaadc","ddbbd55.bb24e28"]]},{"id":"b0a527ed.784c98","type":"serial in","z":"fca4437d.e3677","name":"","serial":"a1611668.300668","x":150,"y":400,"wires":[[]]},{"id":"d7df3fb1.295","type":"inject","z":"fca4437d.e3677","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":120,"y":640,"wires":[["6a5b4f6b.50062"]]},{"id":"7ae01f3a.eaadc","type":"function","z":"fca4437d.e3677","name":"Fistvalue","func":"flow.set(\"first\",msg.payload[0]);\nmsg.payload = msg.payload[0];\nreturn msg;","outputs":1,"noerr":0,"x":540,"y":400,"wires":[["2c7fc254.d4419e"]]},{"id":"4b538ea1.7f0f","type":"function","z":"fca4437d.e3677","name":"Second Value","func":"flow.set(\"second\",msg.payload[1]);\nmsg.payload = msg.payload[1];\n\nreturn msg;","outputs":1,"noerr":0,"x":560,"y":440,"wires":[["6d6ca3cc.57974c"]]},{"id":"ddbbd55.bb24e28","type":"debug","z":"fca4437d.e3677","name":"Full Msg","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":520,"y":500,"wires":[]},{"id":"6a5b4f6b.50062","type":"template","z":"fca4437d.e3677","name":"","field":"payload","fieldType":"msg","format":"handlebars","syntax":"mustache","template":"{{flow.first}}{{flow.second}}","output":"str","x":360,"y":640,"wires":[["99c95db4.8b701"]]},{"id":"99c95db4.8b701","type":"debug","z":"fca4437d.e3677","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":610,"y":640,"wires":[]},{"id":"2c7fc254.d4419e","type":"debug","z":"fca4437d.e3677","name":"First","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":730,"y":400,"wires":[]},{"id":"6d6ca3cc.57974c","type":"debug","z":"fca4437d.e3677","name":"Second","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":740,"y":440,"wires":[]},{"id":"a99ef86c.6397d8","type":"inject","z":"fca4437d.e3677","name":"Example","topic":"","payload":"[6, 48, 53, 255]","payloadType":"bin","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":140,"y":180,"wires":[["a78840dc.fbf4b"]]},{"id":"a1611668.300668","type":"serial-port","z":"","serialport":"/dev/ttyUSB1","serialbaud":"9600","databits":"8","parity":"none","stopbits":"1","waitfor":"","newline":"0xff","bin":"bin","out":"char","addchar":"","responsetimeout":"10000"}]
please help me to end my proyect
according to the example the result must be 630 converted from hex to decimal has to be 1584 mm
