Questions tagged [cars]
For questions pertaining to projects integrating a Raspberry Pi to a mobile vehicle.
31
questions
0
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Cutting power to USB port on a RPi 3A+
I am running a Raspberry Pi 3A+ in my car as a DIY Android Auto head unit (using Crankshaft).
In order to not have the RPi immediately shutdown when you remove the key from the ignition (or have it ...
- 101
0
votes
0
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18
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How do I automate a non-gui wifi client to roam to the strongest AP in range? [duplicate]
I have a RPi in the car that I need to act as a mobile AP.
I need it to provide a consistent, unchanging ESSID (in AP mode) using the onboard wlan0 for all devices that stay in my car. Dashcams, the ...
0
votes
0
answers
396
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Building a car SatNav from a RPi
My Garmin car GPS died, and im thinking about building my own. I saw that there are a couple pretty good navigation softwares out there, and I want to use one of them, with OSM maps and a 7" ...
- 101
1
vote
1
answer
348
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FM Receiver with raspberry pi
I was wondering if there was any way to make a software-only radio that will use all the components included in a raspberry pi 3B+. I've been doing some research and all of the FM models that I found ...
- 11
0
votes
2
answers
750
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Car Pi Power Auto Shutdown
Sorry if this is a duplicate
So I am in the process of installing a Raspberry Pi into my car and have designed a simple circuit to delay power on and off to it to allow sudden turn-offs while starting ...
1
vote
1
answer
64
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Building a top-down parking camera [closed]
I'm looking to build something like this using a Pi.
As I understand it, it needs to handle 4 simultaneous video streams + perspective transformations and output it to a display. I'm not very ...
- 11
0
votes
0
answers
29
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How can I mount two pi on a single robotic car chassis?
To accommodate sufficient sensors (laser rangefinder, line sensor, 9DOF IMU) and control two motors I can't see any other way than using two Pi 3. The first drives the motors, and senses the line. The ...
- 776
1
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0
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455
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vehicles: power supply controlled by ignition with clean power off
I read a lot about this but I can't find a satisfying solution.
I want the Pi to automatically power on when I start the engine and
to cleanly power off when I turn it off.
what I thought was to ...
- 163
-1
votes
1
answer
73
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Newbie: Raspberry Pi Games Emulator 12v Power supply - Car
I have Corsa D 2007 (wife's old car). I've recently stuck one of the cheap eBay Android Touch screens into it for the laugh (came with reversing camera!) - side note for £30 I'm pleasantly surprised ...
- 99
1
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0
answers
62
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I wanna make a raspberry pi car using an RC car. I would like to know if the servo multiplexer is necessary? [closed]
I've asked this question in the Robotics Stack Exchange and I am asking here as this is kind of important and I need some answers fast. My apologies if this is rude or if it causes problems in any way....
-1
votes
1
answer
543
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Raspberry Pi and car led ground effects
I am about to add led strips to my car. I will have at least 4 zones to start out and might add more.
1. Under carriage
2. Front end
3. External
4. Internal
Doing it now, I will have 4 controllers ...
- 1
2
votes
0
answers
311
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Raspberry as audio bridge
I have a car with a 3.5mm jack for aux-in. It has also BT for my phone. In my phone, I have deezer (more or less like Spotify) that I use to send music to the car audio system.
It works fine, but ...
- 21
0
votes
1
answer
214
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Dependencies problem installing mmrcn
Hello i am trying to use ML techniques to identify cars in an image using opencv.
I have been following this tutorial : https://medium.com/@ageitgey/snagging-parking-spaces-with-mask-r-cnn-and-python-...
2
votes
2
answers
9k
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Car Powered Raspberry Pi: Safe Shutdown and Power On
Apologies if this is a duplicate, but I can't seem to find a suitable solution.
I need to power a Raspberry Pi in a car, and for obvious reasons need to shutdown gracefully, however, I need it to ...
- 129
1
vote
2
answers
3k
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How to make ups hat run safe shutdown on raspberry when disconnected from the power source
It can be long discussion, because there is no single solution around this, so, to cut the story short, I will tell where I stuck on my way.
It is AndroidAuto (media centre in car on raspi) project I'...
- 11
2
votes
0
answers
173
views
Real Time Image Recognition at Low Resolution
Working on an embedded systems project. I’ve purchased a FLIR style thermal camera off an older cadillac. It outputs grayscale video at 320x240 (NTSC). Ultimately, I’d like to add night vision with ...
- 21
3
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1
answer
412
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Is the pi right for a key fob?
So im working on this project car and i want to have the coolest key fob ever. Theres videos of people making concept key fobs with touch screens and software running like a smartphone. i want to ...
- 31
1
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3
answers
1k
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Raspberry Pi case ventilation necessary?
I have a Pi 3 B+ that I am using as a portable media server, and it can get quite warm. I need a case for it, and I have been looking at a few, however very few of them have any sort of ventilation. ...
1
vote
2
answers
74
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Determine with a circuit whether the Raspberry is off
I am building a RC car with a Raspberry Pi 3, and I would like to power the Raspberry with a battery. However, when the Raspberry is off, I would like to switch from the battery powering the Raspberry,...
- 121
7
votes
1
answer
11k
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How to Decode TPMS Sensor data through RPi3 Bluetooth
I'm working with a Bluetooth TPMS Sensor (TP630).
Here I have some important information about the sensor:
Description:
➤ Bluetooth Transmit Power: 0dbm MAX
➤ Processor: 8-bit MCU / S08 core, ARM ...
- 113
0
votes
1
answer
95
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one RPI's capability to multi-task with complex Image Processing
I, as part of a project, have decided to implement a small scale version of automated collision avoidance system. I chose to go with Image based object detection. After initial research, I figured out ...
1
vote
2
answers
4k
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measuring resistance (without ADC?) [closed]
Is it possible to read the signals from "simple resistor networks", as on this web site, using only the GPIO on a Raspberry 3? There are six cases with the resistance values 54 Ω, 147 Ω, 301 Ω, 562 Ω, ...
- 218
0
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1
answer
2k
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PWM object's ChangeDutyCycle method is not working
I have a motor class
but I dont' know why this motor cannot change speed
class Motor:
def __init__(self, pos, line_status=0):
def set_motor_gpio(_a, _b, _pwm):
self._A = _a
...
- 9
0
votes
2
answers
1k
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ODB2 adapter for raspberry [closed]
I am thinking about using RPi in a car, as certainly many of you.
However, I am afraid that my demands are too high:
gps dongle connection to track the position (I have already found a reliable ...
- 341
1
vote
2
answers
4k
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Wi-Fi enabled ODBII Script
I have a Wi-Fi enabled OBDII dongle for my car and want to connect it to my Pi to log diagnostics. I can find libraries and information for USB and Bluetooth OBDII adapters, but can't find anything ...
- 51
2
votes
1
answer
883
views
Control car tachometer and Odometer
I am generating a 50% duty PWM signal from port 11 (pin 23) on a Raspberry Pi 3.
import RPi.GPIO as GPIO
from time import sleep
GPIO.setmode(GPIO.BCM)
GPIO.setup(11,GPIO.OUT)
p=GPIO.PWM(11,600)
...
5
votes
2
answers
19k
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How to configure Raspberry Pi in my car [closed]
I have a plan to put a Raspberry Pi in my center console of my 2012 Nissan Maxima. I'm new to Raspberry Pi, but have experience with technology of this sort. In the center of my car, I have a:
USB ...
- 153
1
vote
2
answers
11k
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12V DC buck converter to power Raspberry Pi
I found a DC-DC buck (step-down) converter on amazon that will drop my 12V supply to a 5V 3A max with micro USB already attached. can anyone foresee any issues with using this following product in ...
- 125
1
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1
answer
2k
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Connect a raspberry Pi to a Apple 30 pin dock (or car)
Anyone know if it would be possible using an apple 30 pin connector - which normally supplies power and receive an audio/data connection for music from a raspberry pi?
So Ideally the raspberry pi:
...
- 121
2
votes
2
answers
696
views
How to stop Car Alternator audio noise / buzz?
I connected a Raspberry Pi 2 in the car to add OSMC media player capabilities. However, there seems to be a buzz / hum of background noise in the audio. The noise is correlated to the engine speed so ...
1
vote
1
answer
264
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Raspberry pi in the car
Hoping someone might be able to help me. I am looking to connect an RPI to a car and use the ignition voltage to signal to the RPI to shutdown. I have the constant voltage part sorted but I just need ...
- 19