Questions tagged [serial]
is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. Traditionally "serial" relates to a three (or more with hardware handshaking) wire system (TIA-232-F), now using ∓25V Voltages. Technically speaking the specialized SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit) buses are serial communication systems as well - use one of those tags if they would be more appropriate!
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Raspberry Pi Pico doesn't create tty file
I've been using Raspberry Pi Pico for some time already and I'm using minicom for serial communication. But one day Pico stopped generating tty/ATCM0 when connected to USB port. Before this everything ...
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pyserial and parity check
I am using pyserial library to deal with serial communications between my CM4 and a particular device.
This are my settings:
_baudrate = 9600
_parity=serial.PARITY_EVEN
_stopbits=serial.STOPBITS_ONE
...
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Seeking help with my python loop - a basic MAX7219 8 Digit Seven Segment Display Module driver for a Pico W
I am trying to send serial data to a MAX7219 8 Digit Seven Segment Display Module from a Pico W. I can blank the display or make every last LED light up but nothing else. I cannot currently see what I ...
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monitoring two serial ports simultaneously
For my project I need two serial ports and I need to monitor both and act accordingly.
Example of what I need to do:
Port A and Port B
Monitor all the time Port A and when message is received, I need ...
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Program to test i2c communication with serial prints breaks RP pico
Background:
I am trying to test the communication of 2 raspberry pi pico using i2c. Firstly, i sent a string from one and receive it from the second one. Both of them print the results in the serial ...
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Can't get the correct serial response between Raspberrypi 4 and Pico
I'm trying to make a little connection between both my Raspberry pi 4 and my Pico.
Everything was ok until the pico suddenly stoped recieving what I'm sending from the Raspberrypi.
Expected Outcome
I ...
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PN532 with Raspberry Pi Pico
I have PN532 NFC Module that looks like this
I am trying to connect this NFC Module with Pico, but I have no luck in finding library that allows me this. What can I do to control it? Can you ...
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serial0 owned by root, changes back to after reboot
trying to follow some tutorials about accessing serial ports, I kept getting a permission denied error for /dev/serial0, and the common solution seemed to be to add the user to the dialout group... ...
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UART usage with Ubuntu PI3 Model B
Can someone tell me the steps what I need to do tu get a serial communication to work?
I have a raspberry pi 3 model b rev 1.1 with Ubuntu Server 20.04. I need to communicate with a sensor via serial ...
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Pass serial port readings on RPi to remote for automated testing
The objective of my current RaspberryPi test setup is to read from/write to hardware, and constantly monitor the state/log message stream for test scenarios. The testing code runs on the RPi, and ...
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Serial port vs USB serial adapter timing issues
I'm working on some code that communicates via RS-485/MODBUS RTU with some devices. Depending on my development needs, sometimes I use a USB-RS485 adapter, other times I use an RS-485 HAT that's ...
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can raspi zero 2 w be usb host on micro usb plug and on console cable on TX/RX at same time?
I want to run weewx on a raspi zero 2 w. I want an RTL-SDR radio dongle and an arduino uno to communicate with the raspi02w over two usb connections. If I replaced the raspi zero 2 w with a raspi 4 ...
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Different UART behavior between ttyS0 and ttyAMA0
I'm using serial to communicate with this board (Serial-CAN-Board) on a RPi4. UART is enabled with
enable_uart=1
Console over serial has been disabled with raspi-config and I am using SSH over ...
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Attribute: 'ModbusIOException' object has no attribute 'registers'
I try to follow exactly this video https://www.youtube.com/watch?v=ZlHqEOmvW6M
You can have a look what I do : https://drive.google.com/file/d/1LenDiJVxT8wQUOlMbdDZ_VkIzqLvHmLJ/view?usp=sharing
I will ...
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Prolific Technology pl2303: unknown device type
I am trying to connect a Prolific pl2303 to my raspberry pi 4 running raspberry pi os 64 bit. When I look at dmesg I get the following output:
[ 31.714397] cam-dummy-reg: disabling
[ 44.046197] usb 1-...
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