All Questions
14
questions
1
vote
1
answer
661
views
How to Access Terminal Over Serial Port in Raspberry pi 4
I'm trying to Read and Write over Serial Port to Terminal in Headless Linux That I Installed on my Rpi4.
is That even Possible? is so, how?
aref niki
3
votes
1
answer
395
views
Uninterrupted, endless SPI transfer - is it possible?
I wrote a linux driver for SPI protocol so RaspberryPi could communicate with my device that's using serial data transfer (the device has clock input and data output). It almost works, the problem is ...
- 133
0
votes
1
answer
215
views
most linux commands gives -bash: clear: command not found , after a binary execution (Raspberry pi)
what could be possibly wrong when following dmesg occurs in Raspberry pi
Following is Output of dmesg command,
[ 227.820110] mmc0: card 0001 removed
[ 227.820411] Aborting journal on device ...
1
vote
1
answer
290
views
UART - wiringSerial.h vs standard Linux open/close
I'm making an application that uses the UART port from the 40pin headers and I found online that there's a library called wiringSerial.h
I was wondering what's the difference between wiringSerial.h ...
- 141
1
vote
0
answers
406
views
RPI Serial Communication through USB
I am trying to set up serial communication between my Raspberry Pi Zero W and my PSoC. I want to do this through a normal microUSB to USB 2.0 converter cable, which looks somewhat like this picture:
...
- 21
3
votes
0
answers
316
views
Coin acceptor misbehave when connected on raspberry pi
I have a Bill note acceptor and a Coin acceptor, and I have wrote a program in C# to communicate with these two machines, and it worked perfectly on windows, after that I migrated this application to ...
- 131
1
vote
1
answer
224
views
Can't return any values from ttyUSB0
I'm using a SICK S300 scanner connected via Diagnostic cable to my Raspberry Pi, and it shows the connection as /dev/ttyUSB0 however I can't retrieve any data from it whatsoever.
Here is a simple ...
- 31
0
votes
2
answers
2k
views
Autorun c executable on boot
I tried following the many autorun-suggestions given on different forums, but I'm still struggling with it.
I've got a C code that runs on the Pi - logs temperature and sends the data to the serial ...
- 103
0
votes
1
answer
194
views
Raspberry Pi Zero as Hardware Bypass
My girlfriend has been working on a project for a high level university CS class. The requirements are that input is take from a gaming controller, steering wheel, et al, and sent simultaneously to a ...
- 103
1
vote
3
answers
5k
views
How do I access the serial ports on the RPi in LXterminal?
I am trying to get access to the /dev/ttyS0 file in an attempt to connect an OPC to the RPi via TX and RX connection.
However, when I am in the /dev directory, when I type in /dev/ttyS0 I get the ...
user44164
0
votes
1
answer
263
views
stty command lag and queue issue
I have plugged in a serial-USB,
and run the command:
stty -F /dev/ttyUSB0 38400
Then I am using PHP to send calls to the serial-USB like:
file_put_contents("/dev/ttyUSB0", chr(6).chr(255).chr(0)....
- 11
1
vote
3
answers
2k
views
PHP USB serial port call from Windows to Linux
I have a piece of simple code that works on a Windows - WAMP environment, e.g.
<?php
`mode com3: BAUD=38400 PARITY=N data=8 stop=1 xon=off`;
file_put_contents(com3, chr(1).chr(255).chr(1).chr(4)....
- 11
5
votes
1
answer
2k
views
Simple Custom 1-Wire GPIO Communication Protocol between Master PI and Slave PI
I have 2 Raspberry Pis in my system. One can be 'docked' to the other one and some time later it can become 'undocked'. While docked, the 2 Pis will have a connection between 2 GPIO pins ( 1 pin on ...
- 71
0
votes
3
answers
1k
views
What application (and options) should I use to get terminal access to my Raspberry Pi over a USB/serial cable on Linux?
I've got a Raspberry Pi with a Raspbian SD card, connected to my Debian laptop via a USB TTY cable. The cable is supplying power to the board; my user is in the dialout group, and can see /dev/ttyUSB0....
- 101