Raspberry Pi Forums

Icosagon

Hiya too,

Use Arduino via Serial Communication, its easier and safe. You didn't specify the programming language you used

.

Hope this helps, Icosagon

Icosagon

Hello

You can use a DHT11 to measure temperature and use a relay to switch on fans and ac if thats what you meant.
Also how do you plan to control the house temperature. You can't control temperature using sensors. Sensors just Sense

Icosagon

Icosagon

Hey Matt Penfold

Is your HDD connected to Pi via USB?. If it is you can't boot unless you enable usb booting on it.
Did you properly flash Ubuntu to HDD ? Try setting the boot bit
https://www.raspberrypi.org/documentati ... des/msd.md

Icosagon

Hello Lindiml, If you want to communicate between two RPis you can use Python sockets . Just connect the two Pis to same network (eg: Wi-Fi hotspot). Python sockets is easier to use. So try that. And for doing projects getting to know about pi is not necessary. Pi is like a mini computer with more c...

Icosagon

Hey Guys I figured how to control the robot via computer. I used python sockets to send messages between pc and pi. And for the GUI i used Kivy (GTK might be better) to get sensor values and to control it. To display the MJPEG camera stream in the GUI , I used OpenCV capture to do that. There's late...

Icosagon

This is a very basic question. :) First read whats written on the computer fans power requirement (most of the are 12v). Soldering isn't required for this. Just connect the positive wires of every fan and negative wires of the fan.(+ & - separately) and use any 12v DC adapter to power them. That's a...

Icosagon

It is possible according to stellarium source forge discussion and there are programs for that called Stellarium But it may be slow on the pi. On their website, one person got 18 fps. The new raspberry pi 3b maybe faster and have 1 GB ram, zero might be slower. I haven't used GPS with raspberry but ...

Icosagon

Hello TatarPro What drone are you making ? NVM :D . I have a similar project but its a rover. Python is easy but if you know c++ that will be better. You'll need wifi(router or connect pi to a wifi) to do this I am planning to use python sockets for controlling. And you could easily make a GUI in a ...

Icosagon

Hello

As Scotty said, Laser is good . Place laser on one side and ldr on the other.

Icosagon

Thank you all for the replies :D :P . we was thinking of having plastic, paper, and metal. realy just the main litter in school and i think the idea with multiple flaps and a lazer to stop cheating is great. :D You can detect objects by reflection. Put a torch or led in it and LDR to see whether th...

Icosagon

Hi there Purple Dragon !! Why would you want to use Etcher on your pi. Ether is not necessary to flash in your pi., You could use the dd command. You should use Etcher in your PC to do that. And If you have already booted using sd card. You cant just remove it and add another sd card and flash it. A...

Icosagon

Hello Joel

Is ROS necessary for making the robot. And i think ROS doesn't support raspbian

. I could download opencv and tensorflow and still use it right

Icosagon

I don't know much about gas sensors. But I think Circuits.io is correct/safe. It's a risk to take

. And don't blame me if anything goes wrong.

Icosagon

Dont do anything dangerous with your raspberry pi as it could get damaged even by connecting and led

. You should try to stick with the Pi's Micro USB.

Icosagon

Did it work

Why cant you use a buck to buck converter for that. You should provide voltage higher than 5v eg:12v. It will convert 12v into 5v. Buck to Buck converter to usb is available so you can use it as an normal power bank. Its much safer to power pi that way

.

Icosagon

Anyway Thanks Guys I found sockets in python which allow me to do this. I'll try to stick with sharp develop python for the client side. and for the AI I will try to use OpenCV and any if else statements for navigation. I make it AI one day 8-) . I let you guys know when I have done the project :) ....

Icosagon

Ok Thanks Guys

But is there a way to two way talk between raspberry and computer. I only found ssh but implementing client side is difficult. Any other ways of controlling the robot other than web browser

?

Icosagon

Yes Andyroo I'm after a wondering robot which wanders here and there in a building. I didn't find any good resources or libraries to start learning how to make this. I'm planning to use accelerometer and gyroscope for navigation and i can't buy gps (because they are not cheap and not accurate). Ther...

Icosagon

Thanks PiGraham

I'll look into into. But I'm not trying to control it using voice. I want to control it from another computer. Not with VNC, With a dedicated program using ssh. The AI is very confusing.

Icosagon

Thanks Guys,
I expected the same answer . I am really confused how to start and there is no one to help me. I'll try ask another forum.

Icosagon

You should use an online speech to text convertor to get text https://tutorials-raspberrypi.com/build-raspberry-pi-voice-control-for-home-automation/ and convert text reply to speech using text to speech convertors (most of them works offline) I don't know to make AI but you can script the speech be...

Icosagon

Hello Dave

I didnt mean to disappoint you but its hard to detect what garbage have been put.
If you use a camera to detect what waste have been put, it will be harder to recognize the garbage.
You'll have to use opencv to recognize garbage and train to recognize garbage

Icosagon

Hello K12adminguy

You can use ultrasonic eg: if a person passes near the ultrasonic the distance reading changes so you can say that a person passed.
and optionally you can use a 7 segment display to display the time, or even better a computer monitor.

Icosagon

Hello NSG650 I guess that the relay was clicking because when the raspberry pi boots its gpio pins are not programmed/ or dont know which state they were last, the gpios maybe high or low. You could have used arduino with raspberry to control the irrigation system :) What did you use to power the re...

Icosagon

Hello If you want to water measure water level you can use an ultrasonic sensor and for the alarm a motor driver. Motor driver is used for controlling heavy load items other than leds And you can use ssmtp to send email How to use Ultrasonic https://projects.raspberrypi.org/en/projects/physical-comp...

Search found 26 matches

Re: Help with Relays and GPIO

Re: What sensor for controlling home temperature?

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Re: First Project - Already stuck

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Re: Power fans to cool Rpo 3B+

Re: Portable Stellarium

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Re: Raspberry Pi 2 died wile connecting a relay module

Re: Make a real robot

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Re: Make a real robot

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Re: AI System like Alexa

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