All Questions
146
questions
0
votes
0
answers
46
views
Can't communicate device with his RS323 to 2 pins uart of GPIO
I have a a microbench device, it has his RS232 port.
but I just can read data from this microbench device with this cable:
The microbench device have tx pin with -9V. How can I comunícate microbench ...
0
votes
1
answer
34
views
USB Python Script Issue Raspberry Pi OS
I'm encountering an issue where I'm trying to trigger a Python script in the background upon
plugging in up to four USB devices, all with the same USB vendor and product IDs.
To accomplish this, I've ...
- 1
0
votes
0
answers
77
views
Timeout Issues in PySerial. Arduino randomly starts timing out
from get_connected_arduinos import get_arduinos
serial_devices = []
def initialize(serial_device):
print("initializing", serial_device)
try:
serial_device["serial"...
- 1
0
votes
0
answers
43
views
BlueDot Serial Bluetooth server for OBD
I am building an OBD Raspberry PI car dashboard and I've been struggling to get the adapter to connect and send info. I recently learned that the rfcomm support was dropped years ago by bluez and was ...
- 1
0
votes
0
answers
45
views
OBD Raspberry Pi bluetooth and serial connections issues
So I've been trying to get my digital dashboard code working and I have to connect to the OBD plug to the Pi but ive run into a plethora of issues since then. The first time I did it, the OBD device ...
- 1
0
votes
0
answers
11
views
pymodus unknown message
I am using Pymodbus in Raspberry Pi for data acquisition from Modbus rtu (RS485) sensors. Other sensors worked perfectly fine so coding is ok.
However one particular sensors is giving me this message ...
- 1
0
votes
0
answers
114
views
I am trying to print "Hello World" 15 times from my Raspberry Pi Pico to a text file on my windows desktop via serial communication
Here is my code:
Main.py (PICO code)
import time
for i in range(15):
print("Hello World")
time.sleep(1)
Windows Desktop Python Code
import serial
port = "COM5"
ser = ...
- 1
1
vote
0
answers
373
views
Rpi4b -> Use Serial HC-12 SI4463 Transceiver to send to Generic RF outlets and 433 switches
Raspberry Pi4B
Hi, I am using a 433 MHZ TX/RX kit connected via GPIO pin 27 for receive and GPIO pin 22 to send signals to my RF power outlets and receive signals from my 433mhz Wireless Magnetic Door ...
- 111
0
votes
1
answer
2k
views
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
...
- 11
0
votes
1
answer
213
views
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 ...
0
votes
1
answer
1k
views
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 ...
- 11
-1
votes
1
answer
81
views
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 ...
- 31
0
votes
1
answer
124
views
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 ...
- 9
0
votes
0
answers
2k
views
How to use Raspberry Pi 4 with an USB to RS232 adapter cable over the serial port
I would like to use a Raspberry Pi4 to control a syringe pump [(see datasheet here and in particular the quick start manual on page1)][1]
The connector cables I used are RJ11 from the Pump to RS232 (...
- 197
1
vote
1
answer
1k
views
Raspberry pi and nextion touch screen communication using python
I have tested several python codes to set up the communication between raspberry pi and nextion touch screen (I used TTL serial GPIO 14 and 15). Unfortunately, the communication is not stable, the ...
