Reading data on Matlab from serial device connected to raspberry pi
2 views (last 30 days)
Show older comments
Hello everyone!
I will appreciate your help!
I am trying to read data on MatLab from a serial device that is connected to raspberry pi (the serial device is connected to raspberry pi and the pi is connected to a computer). The serial device is a conductivity probe that has a USB output. I tried the code below to read the data from the device, and I got an empty matrix. The conductivity probe sends data by a UART mode (it also has I2C mode, but the UART mode is the default). What should I do in order to get the data?
>> mypi = raspi
mypi =
raspi with properties:
DeviceAddress: '169.254.0.2'
Port: 18734
BoardName: 'Raspberry Pi 3 Model B+'
AvailableLEDs: {'led0'}
AvailableDigitalPins: [4,5,6,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27]
AvailableSPIChannels: {'CE0','CE1'}
AvailableI2CBuses: {'i2c-1'}
AvailableWebcams: {}
I2CBusSpeed: 100000
Supported peripherals
>> myserialdevice = serialdev(mypi,'/dev/ttyUSB0')
myserialdevice =
serialdev with properties:
Port: '/dev/ttyUSB0'
BaudRate: 115200
DataBits: 8
Parity: 'none'
StopBits: 1
Timeout: 10
>> serialData = read(myserialdevice,2)
serialData =
0×0 empty uint8 matrix
5 Comments
Hocine YAKOUBI
on 6 Oct 2021
Edited: Hocine YAKOUBI
on 6 Oct 2021
Hi,
I have the same problem( not realy I connected RX to TX so I use /dev/ttyAMA0), did you resolve it ?
Thanks
Answers (0)
See Also
Categories
Find more on MATLAB Support Package for Raspberry Pi Hardware in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!