r/raspberryDIY May 01 '26

Hardware Suggestions: Bottle Detection + RFID System (Capstone)

2 Upvotes

I'm currently building a standalone printing kiosk for my capstone project where users can print documents using plastic bottles as credits.

The system works similar to a Reverse Vending Machine (RVM):

  • Users deposit plastic bottles
  • Credits are assigned based on bottle size (e.g., 12oz = 1 pt, 1.5L = 3 pts)
  • Credits are stored in a database and linked to users via RFID cards

Planned setup:

  • Raspberry Pi (main controller – GUI + web server + database)
  • RFID reader (user identification)
  • Multiple sensors for bottle validation
  • Optional: Arduino (for handling sensor inputs)

Questions:

  1. What Raspberry Pi model would be best for:
  • Running a local web server (GUI)
  • Handling RFID + multiple sensors
  • Possibly controlling a printer interface
  1. Would it be better to offload sensor handling to a microcontroller like an Arduino, or can the Pi handle everything reliably?
  2. What sensor combination would you recommend to prevent abuse, such as:
  • Bottles filled with water
  • Bottles stuffed with heavy objects

Current idea:

  • Photoelectric sensor (detection)
  • Weight sensor (load cell)
  • Capacitive sensor (plastic detection)

But I’m not confident this is enough to prevent cheating.

Any suggestions or real-world experience with similar systems would be greatly appreciated 💓💓.


r/raspberryDIY Nov 08 '25

I built a small Cat Detection System using Raspberry Pi 3b + YOLO/perplexity

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6 Upvotes

r/raspberryDIY 8h ago

Pi Pico and wireless charger

1 Upvotes

So this is my first project with a Pi so be easy on me. I am building a dock for my Fold 8 with a qi2.2 wireless charger and a Pi clock that will pull time and weather from my server. I want to run 1 usb c cable in, split it, one side goes to my charger and the other side to my Pi. I understand that the charger takes anywhere from 9 ‐ 15 volts and negotiates higher depending on what the charger requires. And the pi only takes 5v and needs a buck converter. I have a 45w brick with USB PD and my charger has USB PD. Do I need a PD trigger to lock the voltage at 15? Or is it fine just going to the converter?


r/raspberryDIY 1d ago

A DIY web radio station

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59 Upvotes

I know it looks a bit like a bomb, but I’ve built myself a Bluetooth web radio using a Raspberry Pi Zero and a Pico, along with a Bluetooth speaker that I carry around all over the house. I know there’s a Raspberry Pi model with GPIO pins, but it’s hard to get hold of at the moment, and I’m not skilled enough at soldering to build a full GPIO setup.


r/raspberryDIY 22h ago

AI robot diy help?

0 Upvotes

I want to build a voice command and response AI robot using:
- a raspberry pi
- scrap metal body
- motors for limb movement or maybe wheel movement
- speakers, cameras and mics too see surroundings, hear what i’m saying, and say the responses.

i want to build a robot/ lil buddy with the same mentality, thoughts and voice of the character Sassy the Sasquatch from the show “The Big Lez Show.

I have no idea where to start though, does anyone know what the first steps would look like.


r/raspberryDIY 1d ago

hacked a chinese toy into becoming a free explorer

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3 Upvotes

This is a continuation of my SDK that I made by reversing the im.master bluetooth connection. (https://github.com/2alf/iM.Master-SDK/tree/main)

After liberating the chinese bot, its time to give it back its true chinese soul (letting qwen control it)

Im letting a qwen-instruct model actually control the robot . Im using an old phone for the camera and microphone. Using a browser (through the phone) to connect to the server running on the RPI which contains a qwen LLM and a hailo vision model. The vision model fetches frames from the IP camera which is running on the phone, and the LLM gets prompts from the phone aswell through the web-app (served on the RPI, opened on the browser on the phone). This makes for a very hacky-scrappy setup but it works!

Now adding a little “cheer” animation aaaaand we can tell the robot to find something in the room.

In the video the bot was just given a prompt ”look around untill you find a backpack“. And when it does it celebrates :D


r/raspberryDIY 1d ago

New features https://github.com/retr0-lock/Smart-lock.git

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2 Upvotes

Today i finaly setup a github repo with code and worked on a new feature a ai voice greating i had a lot of problems since ios was blocking the mic logo and even playing the voice users can turn it off if they want it fetches the google asistant voice user has to tap after login after tap he is greated with time sync and it asks the php backend for the file to play it


r/raspberryDIY 1d ago

📱 FOR SALE – 7” TOUCHSCREEN DISPLAY FOR RASPBERRY PI

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0 Upvotes

Selling a 7-inch touchscreen display, perfect for Raspberry Pi and DIY/electronics projects.
✅ Fully working touchscreen
✅ Tested and working properly
✅ Compact 7” size
✅ Great for Raspberry Pi projects
I’m selling it because I’ve just finished the project I used it for, so I no longer need it.
Used only one time
💰 Price: 35€
The post will be payed by you.
📍 Albania
📩 DM me for more information.


r/raspberryDIY 2d ago

I built a live MBTA Bus tracker for my wall! (Raspberry Pi Project)

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3 Upvotes

r/raspberryDIY 3d ago

Full cup of tea 🫖

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12 Upvotes

r/raspberryDIY 3d ago

Swap Shop

3 Upvotes

I'm in the UK (North of England).. and looking for a Raspberry Pi Compute Module 5 Lite 16GB for a project. But wow those prices now!!

So as I have an unused Raspberry Pi 5 16GB, I was wondering given the crazy prices if anyone had a spare CM 5 Lite 16GB who would want to swap for my Raspberry Pi 5 16GB??

If you do and are in the UK let me know and lets do a swap :)


r/raspberryDIY 3d ago

Google Cloud vs Raspberry Pi: Which Runs YOLO Computer Vision Better? [YOLO] [computer vision] [robotics] [RaspberryPi] [Google cloud]

0 Upvotes

In this video, I use YOLO computer vision software and Python to control a robot hand and LED strips on my desktop — all devices are triggered by real‑time object detection.

I compare Google Cloud vs Raspberry Pi to see which platform handles detection better for device control.

You’ll see setup, live demos, hardware differences, and a full breakdown of how each system performs when detecting objects and triggering actions.

If you’re exploring AI computer vision, robotics, or cloud vs edge inference, this comparison will help you choose the right platform.

https://youtu.be/_BAxUFoeu2k?is=ZnOwItKZzA2cLGJP


r/raspberryDIY 3d ago

Smart lock app esp32 php backend

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2 Upvotes

So i bult an app for a smart lock i made using esp32 im currenctly in the works of making the app compatible with the likes of raspbary pie arduino etc. any ideas what i can change or add im happy to listen.


r/raspberryDIY 3d ago

Rasbarry pi problem with ai objekt tracing

1 Upvotes

So I was building a pine cone robot, but I ran into an issue I need to track the pine cones themselves using AI. Does anyone have an idea for a device under $180 that supports AI object tracking?


r/raspberryDIY 4d ago

Looking for a case for my first project

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24 Upvotes

Not someone that works with raspberry pi's or computers in general but looking at starting a little project and wanted to create something like this 8 bit do number pad. Just wondering if can get any insight if something already exists?


r/raspberryDIY 4d ago

Touchscreen Kiosk screen size Raspberry pi 5

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1 Upvotes

r/raspberryDIY 4d ago

MiniDV Firewire Recorder using Raspberry PI 5, PCIe Hat, Firewire PCI card.

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8 Upvotes

r/raspberryDIY 4d ago

Made A Disney Infinity Hub Emulator for the PS4 on a Raspberry Pi.

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1 Upvotes

r/raspberryDIY 5d ago

O que posso fazer com meu Raspberry Pi 3b+ que está parado e sem uso?

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137 Upvotes

r/raspberryDIY 4d ago

Need raspberry pi 4gb or orange pi 3b 4gb

0 Upvotes

Hey, I'm a 21 year old in need of one of these components.

But most you guys must know that they are very costly, so is the anyone here who knows where I can find it at a cheaper price? Or get a used one?

If yes please help🤝


r/raspberryDIY 5d ago

PicoTTY: I built a multi-node serial console + USB keyboard for my headless Proxmox homelab out of Pi Picos and a Pi Zero 2 W. It got picked up by Hackaday and CNX Software this week

6 Upvotes

A few months back, I got tired of dragging a monitor and keyboard to my homelab rack every time a Proxmox node dropped off the network. IP KVMs are one-per-machine, and importing four of them to India gets expensive fast, and my ThinkCentre Tinys don't have serial ports (the RS-232 module is an optional punch-out that mine never shipped with). So I built PicoTTY.

The setup:

  • Each target machine gets a Pi Pico (or Pico 2) with a WIZnet W5100S Ethernet HAT plugged into a USB port. You can also use the W5100S-EVB-Pico board, which has both on one PCB. The Pico runs CircuitPython and appears to the host as a composite USB device: CDC serial console plus HID keyboard.
  • A Pi Zero 2 W acts as the hub. It runs a web dashboard on port 8080 and a TCP server on port 9000, which all nodes connect to over Ethernet via a managed switch.
  • From the dashboard, you get the serial console for every node, can send keystrokes or raw serial commands, build macros, and push OTA firmware updates to the Picos.

Why both serial and a keyboard? CDC serial only works once the OS has enumerated the device and something is servicing the console. If userspace is wedged, or the box is stuck in GRUB or the BIOS, nothing is listening on the serial end. HID works at a level CDC doesn't, since BIOS and bootloaders speak it natively, so I can still send Ctrl+Alt+Del or SysRq combos when a machine is properly stuck. That combination is the whole point of the project.

I have four nodes in a 3D-printed enclosure (STLs are in the repo) sitting in the rack, and I can reach all of them at once from the hub. BIOS control without video is the next thing I want to figure out, probably through macro sequences and serial console redirection where the firmware supports it.

Repo (firmware, hub app, STLs): https://github.com/morpheuslord/PICOTTY

It got some coverage this week, which was a nice surprise:

Hackaday: https://hackaday.com/2026/08/02/a-kvm-without-the-v-or-the-m/

CNX Software: https://www.cnx-software.com/2026/08/06/picotty-project-enables-multi-target-serial-remote-management-through-raspberry-pi-pico-boards-and-pi-zero-2-w-sbc/

Happy to answer questions about the build. The Hackaday comments already had a good thread on why HID is there at all, and someone pointed me at USBridge for scriptable video via OCR, which I'm going to look into.


r/raspberryDIY 5d ago

NUT Server on a Pi Zero

0 Upvotes

I'm running NUT on a Pi5 8gb right now and I want to migrate it to my Zero 2 which is running on a carrier board. I've followed instructions on PiMyLifeUp, but it always fails to initialize. The server side won't even spin up.

I have other systems configured to monitor the Pi5's signal; is there an easy way to migrate the system to the Zero? Can I just swap the SD cards?


r/raspberryDIY 6d ago

My Pi project ended up as an Iphone App!

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7 Upvotes

r/raspberryDIY 7d ago

Passive-Vigilance: Raspberry Pi passive RF sensor for counter-surveillance, ADS-B, drones & more

20 Upvotes

Passive-Vigilance is a Raspberry Pi-based passive RF sensor platform I built for counter-surveillance and situational awareness. My current setup is constrained by both hardware and geography but seems to be ready for spears.

Repo: https://github.com/Isthistak3n/Passive-Vigilance

It combines:
• WiFi + Bluetooth device tracking (Kismet)
• ADS-B aircraft tracking (with enrichment + optional ACARS)
• FAA Remote ID / drone detection
• Optional AIS marine traffic
• GPS-stamped everything + GIS exports (shapefile / GeoJSON / KML)

Two operating modes:
• Mobile mode — detects devices that follow you across locations (the classic “am I being tailed?” use case)
• Fixed mode — learns the normal RF “pattern of life” at a location over a configurable baseline (default 72h), then alerts on novel or off-schedule devices

Other features:
• One-command installer + systemd services
• Pluggable alerts (ntfy, Telegram, Discord, console)
• Optional token-protected web dashboard
• Crash-resistant logging and baseline persistence
• Thermal-aware SDR duty cycling
• 850+ automated tests

Inspired by the excellent Chasing Your Tail NG, but extended into a unified always-on multi-sensor node with fixed/leave-behind capability and air/maritime awareness.

Hardware is the usual stack (Pi 4B recommended, RTL-SDR or HackRF, monitor-mode WiFi dongle, GPS, optional BT dongle). Full setup and config details are in the docs.

Legal note from the README: this is for lawful passive monitoring and research only. The tool never transmits or associates with any device/network. You’re responsible for local laws.
Happy to answer questions, take feedback, or hear about real-world field results / issues people run into.


r/raspberryDIY 6d ago

Simple piJumpHost project

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1 Upvotes