I am building a self driving car model using python(tensorflow). The architecture design of my project looks like the following. The CNN code will be in the raspberry pi, which is connected to a radio controller using wires from it's GPIO pins to send motion signals. The pi then controls the car. To "see" what's around it, the car uses a webcam that is mounted at the front center(this is the puzzle), which I wanted to stream the video to the pi; then the pi will use it's trained model(brain) to decide whether or not to move forward, make a left turn, a right turn and so on. The pi and rc radio controller are not mounted on the car, and I want them to remain that way for a reason. The car has the webcam and that is it. I am considering replacing the webcam with an android phone due to lack of alternatives, but I would hate to do that. If you would like more explanation on the structure of my project, please comment down there.
My question is how can I stream the video to my pi in real time?
Related
I have a Raspberry pi 4 and my goal is to connect it to some LEDs that will react to music that is playing through bluetooth (or AirPlay, ...). I've installed rpi audio receiver and so now I can stream music to it.
Now I need to write (or use some) code, that could parse what is being played to the audio output (via built-in 3.5mm jack), so the main question now is:
Is it better (or possible) to intercept the audio somewhere and analyse it with my own code, or does this require some deep modifications to the streaming program? Or do you know of a better solution that could point me to the right direction?
I saw a lot of people using an external mic, but the whole process is too different from mine.
Type of LED strip is not important right now, if I'm able to write my own code for it.
Thanks for any help!
I am planning to work with a Rasberry Pi in order to try and detect motion of certain things. I was thinking of capturing motion with a similar approach RFID stickers perhaps placed on objects to detect their movement. Does anyone know of a type of sensor that could recognize specific movement or what technology I may look into ?
I recently downloaded an image from the raspberry Pi website. I flashed that to my SD Card using All of the GUI interfaces shown here. As mentioned in the title, I plug the micro ad card into my Pi, and it pops up to a screen with many different colors on it. Nothing else is shown. This is now the 2nd hour it has been on this screen.
I believe what happens when you get stuck on the rainbow screen is that the pi can't find the kernel.img on the sd card. Alternatively, your power supply may be less than 500ma (which is tiny, so this generally isn't the issue).
I would take the following steps:
Check the power output from the wall wart you are using to power the
pi.
Stick your card in a windows box and see if kernel.img is
present.
Wipe the sd card and give it another go.
Try a different sd card in case there is an issue with the card
Bang your head against a wall, because I'm out of ideas. It could be a bad pi board :/
There's some pretty good discussion here with plenty of trouble shooting options that may get you out of a jam if the steps above don't do anything to solve the problem.
I'm trying a project to simulate a brass trombone. The materials I'm using are a Seeed Studio Ultrasonic distance sensor, Raspberry Pi, and an Arduino. I'm going to connect the sensor to the Arduino, and the Arduino to the Raspberry Pi.
I'm looking to have the Raspberry Pi play one steady sound out of the audio jack. As the distance between my hand and the sensor get larger, the pitch of the emitted sound should get lower.
I'm not too familiar with using audio in programming, or too much of programming for that fact. Could someone help me write up some code (preferably in java or C#)? I'm very anxious to do this as I play trombone in school. Any help or suggestions are appreciated.
As not to recreate the brass trombone from scratch, use a Midi Synth on the Pi, such as TiMidity (apt-get install timidity) or alike. With this you can bridge between the Arduino's output and the note(s) sent to TiMidity to play out the Pi's speaker.
I would like to hook up several piezos to an arduino so that, when they are activated each piezo plays/triggers a separate tone. For instance, I'll have five piezos connected to the arduino - when I apply pressure to each one they play a separate note, either through a software interface on a computer or from the piezos themselves. Basically an Arduino synth using piezos as keys.
I'm just not quite sure how to go about doing this. I'm sure its possible but just need a push in the right direction. Any ideas? Thanks!
The practical difficulty of using one device as both an input sensor and output device, is that once activated to output (a sound) you would have to disable using it as input for some fixed time. Something more responsive would be to use separate sensors for the keys, and just one speaker for all sounds. The good folks who came up the Arduino tutorials have a 3 key sensor player example here:
http://arduino.cc/en/Tutorial/Tone3
and another example of using a piezo as a sound sensor here:
http://www.arduino.cc/en/Tutorial/KnockSensor
I can Help you with the Software interface , You can use your smart phone to play sounds for each Piezo Sensor.
See this app : https://play.google.com/store/apps/details?id=ram.mere.DoDuino
You can connect arduino using Serial ( Android 3.1 and higher ) or Bluetooth to this app.
And to use the Sound Action follow this tutorial :
https://www.youtube.com/watch?v=RQhx6qBElVk
. So you specify what sound to be played on your android phone , and when you detect which piezo you send data to the android and then the Sound Specified will be played .
So for example if android App Received : #p1; then it will played the sound related to Piezo one
and when you send #s1; then it will stop playing that sound ..etc.
Hope this help someone :D .