pyserial

问题 serial.write() method in pyserial seems to only send string data. I have arrays like [0xc0,0x04,0x00] and want to be able to send/receive them via the serial port? Are there any separate methods for raw I/O? I think I might need to change the arrays to ['\xc0','\x04','\x00'], still, null character might pose a problem. 回答1: You need to convert your data to a string "\xc0\x04\x00" Null characters are not a problem in Python -- strings are not null-terminated the zero byte behaves just like

问题 I'm working on a project in which I have to receive some 25 character data at a time in order to process it in Raspberry Pi. Here is the example code that generates some data I want to receive from Arduino: char i =0; char a =0; char b=0; void setup(){ Serial.begin(9600); for(i=0;i<25;i++){ Serial.print('l');} Serial.print('\n'); delay(2000); } void loop(){ for(i=0;i<25;i++){ for(a=0;a<i;a++){ if((a==9)||(a==19)||(a==24)) Serial.print('l'); else Serial.print('d'); } for(b=0;b<25-i;b++){

问题 I am using Pyserial to write out bytes to a connection. One of the things I have been struggling with is figuring out how to write out exactly the bits that I want. I have had success writing out the bytes of a strings ascii form, such as variable = 'h'.encode() serial.write(variable) And that will write out the bits of H succesfully. However if I do something like that with b'\b001' it won't write out 001 like I had hoped it would. Is there a way to do this so I can simply define variables

问题 I am using Pyserial to write out bytes to a connection. One of the things I have been struggling with is figuring out how to write out exactly the bits that I want. I have had success writing out the bytes of a strings ascii form, such as variable = 'h'.encode() serial.write(variable) And that will write out the bits of H succesfully. However if I do something like that with b'\b001' it won't write out 001 like I had hoped it would. Is there a way to do this so I can simply define variables

问题 I'm trying to talk to a home made card over a serial port, and is therefor using pySerial. In Hyperterminal, everything works fine. I can write: $ audio on and the audio is enabled, but if I use ser = serial.Serial("COM1", 38400) ser.write("audio on\r\n") nothing happens. I can read incoming data however, so it's not something wrong with the communication. I doesn't help if I change \r\n to just \n or \r either. EDIT: Sometime I actually get the feedback: No such command when sending the

问题 I'm trying to use PySerial to connect to an FTDI FT232R chip. I have verified communication with my RealTerm and, using RealTerm, can both send and receive data. However, my implementation in Python can only receive data. I am trying to write using this line: for i in range(0,100): print "Loop "+str(i) print "Sending byte" ser.flush() print ser.write("B".encode('ascii')) time.sleep(1) 回答1: Comunication depends on the configuration of the chip, the connecting cable and the parameters of

问题 I'm having difficulties getting pyserial to play nicely with a virtual port . I know this is an area which a few others have written about, but I couldn't find anything which solved my problem in those answers. Forgive me if I'm just being dense, and the solution exists ready-made elsewhere. This is what I'm trying to achieve: I want to set up a virtual port, to which I can write data in one .py file, and from which I can then read data in another .py file. This is for the purposes of

问题 I'm having difficulties getting pyserial to play nicely with a virtual port . I know this is an area which a few others have written about, but I couldn't find anything which solved my problem in those answers. Forgive me if I'm just being dense, and the solution exists ready-made elsewhere. This is what I'm trying to achieve: I want to set up a virtual port, to which I can write data in one .py file, and from which I can then read data in another .py file. This is for the purposes of

问题 EDIT I found out what the problem was and have answered my own question. Original question below this line I have a serial bridge between COM4 and COM5 implemented in software (Specifically, HDD's Free Virtual Serial Configuration Utility) I have two different python scripts starting up in two different instances of Powershell, receive first: import serial receive = serial.Serial(port = 'COM5', baudrate = 9600) text = receive.read(100) receive.close() print text And then the sender: import

问题 I know this question have been asked several times, but none of the solutions I saw solved my problem. I have been trying to use the serial library from Sublime Text 2 in my mac. import serial Everytime I call this library, I get this message: Traceback (most recent call last): File "/Users/andreapatri/Desktop/test.py", line 1, in <module> import serial ImportError: No module named serial [Finished in 0.0s with exit code 1] I already installed python 3 brew install python3 and pyserial sudo