USB relay not working
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I am using this USB relay:
SMAKN LCUS-1 type USB relay module USB intelligent control switch USB switch
To power a dosing pump:
Gikfun 12V DC Dosing Pump Peristaltic Dosing Head with Connector For Arduino Aquarium Lab Analytic Diy AE1207
This is the python code that gets it working and also has this .exe installed (SerialSend.exe; https://batchloaf.wordpress.com/serialsend/):
subprocess.check_output("serialsend.exe /baudrate 9600 /hex \\xA0\\x01\\x01\\xA2", shell=True)
time.sleep(10)
subprocess.check_output("serialsend.exe /baudrate 9600 /hex \\xA0\\x01\\x00\\xA1", shell=True)
Any tips in converting this to Matlab? I’ve tried this but nothing happens:
relayopen='\\xA0\\x01\\x01\\xA2';
relayclose='\\xA0\\x01\\x00\\xA1';
Ports=serialportlist;
JuicePort=Ports(3);
s=serial(JuicePort);
fopen(s)
fprintf(s,relayopen)
fclose(s)
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Antworten (1)
Walter Roberson
am 27 Aug. 2022
relayopen = '\xA0\x01\x01\xA2';
relayclose = '\xA0\x01\x00\xA1';
Ports = serialportlist;
JuicePort = Ports(3);
s = serial(JuicePort, 'BaudRate', 9600);
fopen(s)
fprintf(s,relayopen)
fclose(s)
Note that serial() is going to go away, and you should change to serialport()
3 Kommentare
Walter Roberson
am 28 Aug. 2022
relayopen = 0xA00101A2;
relayclose = 0xA00100A1;
Ports = serialportlist;
JuicePort = Ports(3);
s = serial(JuicePort, 'BaudRate', 9600, 'ByteOrder', 'bigendian');
fopen(s);
fwrite(s, relayopen);
sleep(5);
fwrite(s, relayclose);
fclose(s)
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