All Questions
28
questions
-1
votes
1
answer
28
views
Unable to use UART and Bluetooth in RPi3 with audio output simulatneously
I am using Rpi 3b+ and I am trying to use the Bluetooth and UART simultaneously.
with ls -l /dev:
Serial 0 - ttyAMA0
Serial 1 - ttyS0
I had to use the UART (for reading coordinates in GPS) and ...
- 1
0
votes
0
answers
596
views
raspberrypi kernel: [14247.511414] mmc0: timeout waiting for hardware interrupt
Setup = Rpi > USB HUB > USB TTL adapter/cable > 2 LTE modules.
Protocol = AT Commands.
Problem = mmc0: timeout waiting for hardware interrupt.
Question = Any investigation method and ...
-2
votes
1
answer
79
views
Show data from USB to eink bonnet [closed]
So I have a RPI with a adafruit 2.13 eink bonnet installed onto my GPIO pins. Then I have a gearmo USB-RS232 serial converter plugged into my USB port then the RS232 connection is on a GPS receiver. I ...
- 1
-1
votes
1
answer
50
views
Problem with Pyserial when using Xbee and GPS on rasp pi 3B+
i am currently trying to get some data from gps and try to send it through Xbee to a pc. To do this, i was using multiprocessing. At first getting the GPS data and sending data through Xbee was done ...
0
votes
0
answers
1k
views
Unable to import pyserial or serial in python 3.4.2
I am not able to import pyserial or serial module in a python script. Package is properly installed (I think) using the following commands:
sudo apt-get install python3-serial
pip3 install pyserial --...
- 1
2
votes
1
answer
2k
views
Serial port fails after some time
I use a RPi 3b to request and receive float values over serial from an Arduino Nano (fake). For that I use python and pyserial.
Arduino Loop:
if (Serial.available() > 0) {
String req = Serial....
- 23
0
votes
0
answers
335
views
screen and serial UART connection gibberish
I'm connecting my iMac (10.14.16) to my RPi 3b+ (Ubuntu 18.04.5 LTS ubuntu ttyS0, uname -a = Linux ubuntu 4.15.0-1067-raspi2 #71-Ubuntu SMP PREEMPT Fri Jul 10 01:36:10 UTC 2020 aarch64 aarch64 aarch64 ...
- 111
-1
votes
1
answer
1k
views
How to disable output to serial (GPIO) during boot
I'm trying to drive a motor control over the Raspberry Pi's GPIO serial pins (GPIO 14 and 15)
I've disabled the serial console, however, during bootup of the Raspberry PI, it still sends data over ...
- 99
1
vote
0
answers
183
views
How to run " import serial" and "import cv2" in one python file?
I am actually creating my project wherein I can control my raspberry pi in my pc using FPV Radio Telemetry. The scenario is my pc will send string data like "red" and "blue" to my pi. After my pi ...
- 11
1
vote
0
answers
190
views
RPI3b+: UART serial communication problem
I have my RPI setup to communicate serially with another board. Currently, I have a usb to serial converter which is plugged into one of the RPI ports. This works well but, I want to take that out and ...
- 111
1
vote
0
answers
212
views
Controlling multiple arduinos from a pi 3b+
I'm working on a robotics project where we need to control 2 motors, read data from 8 ultrasonic sensors, display a 2 digit number on 7 segment displays, drive servos and a few more things.
The ...
- 121
3
votes
1
answer
1k
views
How to control Odrive with Raspberry pi? [closed]
How to interface Odrive with RPi? didn't find much information on the internet so want to know who has done something like this before.
trying to use this code:-
import odrive
import time
import ...
- 37
3
votes
1
answer
259
views
SIM900A with Raspberry Pi 3 Weird Error and Behaviour
I am working on integrating Sim900a on Rpi3B. As usual connecting to TX->Rx, Rx->Tx (GPIO14, GPIO15 in Rpi) - following diagram from this link: How do I connect GSM SIM 900A to a Raspberry Pi 3?
When ...
- 83
2
votes
1
answer
877
views
Rpi3B+ Control Half Duplex UART Bus Servo DynaMixel AX-12A, HiWonder LX-224HV Problem
I have a project to make mobile robot with Dynamixel AX-12A as the wheel, so i changes the AX-12A to Wheel Mode with CM-530 and it works well.
I follow the guide from http://www.oppedijk.com/robotics/...
- 41
1
vote
1
answer
4k
views
Rpi3B+ buster USB to Serial (/dev/ttyUSB0) Communication Problem
I'm trying to establish a serial communication between my Raspberry PI 3 B+ - running on Raspbian 10 Buster - and a testing machine I have. The normal behavior of the machine is to send test related ...
