Node-Red Flow example : Buffer & Serial Connection

README.md

Node-Red
This flow is Buffer & Serial Connection.

Youtube link
https://youtu.be/pUPqknyBUD0

flow.json

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Buffer(\"0a0b0c\",\"hex\");\nvar buf2 = msg.payload;\nmsg.payload = Buffer.concat([buf1,buf2]).toString();\n","x":143.5,"y":34,"wires":[]},{"id":"60301371.384804","type":"serial in","z":"df898261.0c874","name":"","serial":"bb41ba26.cc13a","x":338,"y":36,"wires":[["348a566a.1a0a92"]]},{"id":"348a566a.1a0a92","type":"debug","z":"df898261.0c874","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":485,"y":36,"wires":[]},{"id":"a936fb91.520d38","type":"inject","z":"df898261.0c874","name":"[1,2,3,10,11,12]","topic":"","payload":"[1,2,3,10,11,12]","payloadType":"bin","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":193,"y":98,"wires":[["2873f328.07a314"]]},{"id":"2873f328.07a314","type":"serial out","z":"df898261.0c874","name":"","serial":"ac94254a.4b61b","x":473,"y":98,"wires":[]},{"id":"96091779.61933","type":"serial 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msg;","outputs":1,"noerr":0,"x":328,"y":226,"wires":[["94f22f1e.fbc4"]]},{"id":"43bac896.8f2cf8","type":"inject","z":"df898261.0c874","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":174,"y":226,"wires":[["4a3a333a.95d8bc"]]},{"id":"dd56e89a.294d28","type":"serial out","z":"df898261.0c874","name":"","serial":"ac94254a.4b61b","x":482,"y":286,"wires":[]},{"id":"d8019613.986c6","type":"function","z":"df898261.0c874","name":"crlf","func":"msg.payload = new Buffer([0x01,0x02,0x03,0x0d,0x0a]);\n\nreturn msg;","outputs":1,"noerr":0,"x":328,"y":286,"wires":[["dd56e89a.294d28"]]},{"id":"afcb385e.af32c","type":"inject","z":"df898261.0c874","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":174,"y":286,"wires":[["d8019613.986c6"]]},{"id":"aaafd225.9daae","type":"serial 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msg;","outputs":1,"noerr":0,"x":330,"y":392,"wires":[["24879f3c.f3825"]]},{"id":"90476fe8.430f","type":"inject","z":"df898261.0c874","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":176,"y":392,"wires":[["531af2cf.289634"]]},{"id":"ac7af238.d3fbc8","type":"serial out","z":"df898261.0c874","name":"","serial":"ac94254a.4b61b","x":483,"y":444,"wires":[]},{"id":"2fa08fe.f08fef","type":"function","z":"df898261.0c874","name":"concat","func":"var buf1 = new Buffer(\"010203\",\"hex\");\nvar buf2 = new Buffer([0x04,0x05,0x06]);\nmsg.payload = Buffer.concat([buf1,buf2]).toString();\n\nreturn msg;","outputs":1,"noerr":0,"x":329,"y":444,"wires":[["ac7af238.d3fbc8"]]},{"id":"35324182.342c9e","type":"inject","z":"df898261.0c874","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":175,"y":444,"wires":[["2fa08fe.f08fef"]]},{"id":"46c077d6.4c2f88","type":"serial out","z":"df898261.0c874","name":"","serial":"ac94254a.4b61b","x":632,"y":506,"wires":[]},{"id":"ba36d427.81372","type":"function","z":"df898261.0c874","name":"abc","func":"var buf1 = new Buffer(\"0a0b0c\",\"hex\");\nvar buf2 = msg.payload;\nmsg.payload = Buffer.concat([buf1,buf2]).toString();\n\nreturn msg;","outputs":1,"noerr":0,"x":483,"y":506,"wires":[["46c077d6.4c2f88"]]},{"id":"5fba404c.fc88f","type":"inject","z":"df898261.0c874","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":174,"y":510,"wires":[["50ca6da9.5277cc"]]},{"id":"50ca6da9.5277cc","type":"function","z":"df898261.0c874","name":"123","func":"msg.payload = new Buffer(\"010203\",\"hex\");\nreturn msg;","outputs":1,"noerr":0,"x":334,"y":509,"wires":[["ba36d427.81372"]]},{"id":"ac685636.d3b8a8","type":"inject","z":"df898261.0c874","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":174,"y":562,"wires":[["3199a3b0.cc3534"]]},{"id":"3199a3b0.cc3534","type":"function","z":"df898261.0c874","name":"456","func":"msg.payload = new Buffer(\"040506\",\"hex\");\nreturn msg;","outputs":1,"noerr":0,"x":332,"y":561,"wires":[["ba36d427.81372"]]},{"id":"bb41ba26.cc13a","type":"serial-port","z":"","serialport":"COM15","serialbaud":"38400","databits":"8","parity":"none","stopbits":"1","newline":"3","bin":"bin","out":"time","addchar":false},{"id":"ac94254a.4b61b","type":"serial-port","z":"","serialport":"COM13","serialbaud":"38400","databits":"8","parity":"none","stopbits":"2","newline":"3","bin":"bin","out":"time","addchar":false}]