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Raspberry Pi Projects

295 posts

Computer Vision

Posted by jdolcine Jul 19, 2020
I need help! i'm trying to build a drone using raspberry pi 4 and i want to equip it with a smart camera to be able to identify cars, tag numbers, colors and other things. Can I use any regular camera or is there one that's better for that type of function?   Ideally the drone will fly and I will give it a command to find white ford mustang with tag# 1234. i want the drone to scan the given area take pictures/video then the picture/video will be sent back to my computer and the computer wi ...
Hi, I want to introduce a new project by me - PiMKRHAT. The PiMKRHAT is an adaptor to use Arduino MKR boards and shields together with the Raspberry Pi. Different Arduino MKR Shields can be used via this HAT as extension for the Raspberry Pi. Furthermore Arduino offers different Arduino boards for different IoT networks like Sigfox, Lora, NB-IOT. These boards can be used like a modem via the serial interface of the Raspberry Pi as extension to communicate with these wireless standards.   ...
I want to introduce my new touch screen kit for the PiZero. There are already many touchscreen extensions for the Raspberry Pi and Pi Zero, but often without an elegant housing for wall mounting and usually with larger screen diagonals and therefore not in the compact size of a light switch or thermostat. This makes the AZ-Touch Pi0 particularly suitable for small applications in the field of home automation, metering, monitoring, control and other typical IoT applications.     Fe ...
celcius1

Macro Pi Station

Posted by celcius1 Apr 2, 2020
Well a few months back I started building myself a Macro Workstation to help me with soldering and other detailed tasks that need magnification but also to provide me with a means of recording it easily.  I had originally envisioned to use a 35MM camera lens to maximise the amount of light entering the body, but found that unless I use the equivalent of a fish eye lens the crop factor associated with the Raspberry Pi Camera image sensor was on the magnitude of approx 5.7.  My lens opti ...
This Project automates the configuration of a Raspberry Pi into a WiFi Access Point using my opensource Github Repo "pi-ap". If you can edit a file with nano and change a few values in a variables file, you  can do this project. Wireless Communications Technology Wireless   SOFTWARE: - My Opensource repo Github repo "pi-ap"   HARDWARE: - Raspberry Pi 3B+ or 4 running Raspbian Stretch or Buster.   ADDITIONAL REQUIREMENTS: - DHCP enabled port in a router or switch to connect th ...
I recently brought the DraStic ds emulator on my phone. I setup the left stick button to switch screens but i have a project idea to fix the second display issue. I wanna use a raspberry pi zero as a display driver to take a usb c input (via usb c dongle if i have to) I was looking for a 16:9 5-6 inch display(oled preferable and at least 1080p) Can you help? Could you even make a video on it so i can follow it? I know using my ds with my official cart of the game is the easy solution, but i love ...
Good day! I've recently built my own portable console, and now I wonder what people think about it. If you have any questions, I will try to answer them as fast as I can.   If you're interested in buying one, you can visit: https://www.etsy.com/listing/682397120/portable-retro-game-console-with-big-79      ...
Introduction This project attaches a large, low-cost 3.5 digit multi-meter style LCD screen to a Pi!   Plain glass liquid crystal displays (with no in-built driver) do not seem to get much love in hobbyist projects, since ready-made modules with built-in driver chips are low cost. Furthermore alphanumeric or graphic LCD modules are a better option most of the time, due to the flexibility in what can be displayed. However, if very low power consumption is needed, then this project could be ...
Introduction For this project I'm going to use a raspberry Pi to create a home irrigation system using node red to provide the user interface.   The build for the control box is covered in my homebrew controller project here: Raspberry Pi Homebrew controller with Node Red UI   So I'm going to use the same controller and use web service to count the number of days without rain in the town that I live.  I'm using the https://openweathermap.org/  site which has a python API ...
Introduction For this project I'm going to upgrade my trusty home-brew temperature controller.   I'm using a fish tank temperature controller at the moment to control a heater belt with a relay which is kind of ok apart from I need to go into the garage to check what it's doing and the temperature sensor which is just a cheap thermistor just gets bungee'd to the outside of the mash tub so I'm not sure how accurate it is, especially since the temperature sensor ends up being close to the ...
In my quest to use a Raspberry Pi 3B+ for creating art, I need to be able to control the GPIO pins. So next step was to look for some information on doing just that.   A quick search of element14 uncovered this blog by shabaz where he illustrates controlling the GPIO lines with Python. That should get me off to a quick start and Python should be ok to work with, at least for the simpler art pieces [I haven't done very much with Python and, to be honest, I didn't entirely like it when ...
I'm going to be using a Raspberry Pi 3 B+ as part of the PiCasso Design Challenge   Here it is, along with some art materials     I haven't used one before and I'm trying to get it going 'headless' (ie through the ethernet cable, without a monitor or keyboard attached). I'm following all the useful advice given to dubbie in these blogs   Getting Started with an Old Raspberry Pi #1 : Its a Model B (not a B+)   Getting Started with an Old Raspberry Pi 1B : Connecti ...
Use a USB air-quality sensor dongle to quickly mount an indoor air monitoring system and prevent headaches and further impact on health.           Things used in this project  1.OhmTech.io uThing::VOC 2.Raspberry Pi 3 Model B   VOCsVolatile organic compounds (VOCs) are emitted as gases from certain solids or liquids. VOCs include a variety of chemicals, some of which may have short- and long-term adverse health effects. Concentrations of many VOCs are consist ...
Achievement of high efficiency, low power loss, and real-time response are major challenges in an automated control process. Control processes are often error-prone due to external factors such as abnormal input power, variable temperature, load, and pressure. In a real-time environment, the process must not oscillate for any external forces. Closed-loop systems are designed to include an error compensator to eliminate the error. The PID (Proportional Integral Derivative) controller developed in ...
Hi all,   We have started with the development of our own embedded MIPI camera module for the Raspberry Pi with an industrial image sensor. Currently, we are in the specification phase and are interested in your preferences. We are planning to develop a product that fits your requirements. Please fill out this short, 4 question poll. It would really help us out.   Thanks. ...

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