Questions tagged [raspberry-pi]
For questions about the do-it-yourself single-board PC. This tag should only be used when asking about add-ons for the Raspberry Pi.
35
questions with no upvoted or accepted answers
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Embedded System with PWM support
So I need a Raspberry Pi sized (can be smaller or a bit larger) embedded computer that can output PWM signal natively. The Raspberry Pi can output PWM signals, but only with a maximum resolution of 0....
- 1,697
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Budget Microcontroller for large WS2812B strand
I am using an Arduino Uno R3 to control my Christmas lights (a strand of 665 WS2812B LEDs).The Arduino, while driving the LEDs, is not accessible from my PC, so I am attempting to use a Raspberry Pi 3 ...
- 854
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NFC wand (or shield, or other) for Raspberry Pi
I am developing a system to register visitors. The visitors wear a wristband containing an NFC tag.
In order to read the tag, I am currently using a cheap Samsung Android phone, with built in NFC ...
4
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314
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VPS vs Raspberry Pi and Arduino
I want to implement this project...
In the image I have:
One and unique analog signal
One analog to digital converter
The output is carry out to several modules (executing FIR and rewriting the its ...
- 141
3
votes
0
answers
33
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RGB light with case and cable for Raspberry PI
We need an external light for a Raspberry PI. This light should already ship with a case. Also it needs to have a cable (about 1 m). It doesn't matter whether it's USB or is plugged directly in the ...
- 183
3
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answers
103
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Which USB webcam (with microphone and speakers) works for Raspberry Pi?
I would like to solve three problems with a single (USB) device:
Camera
Audio-Out
Audio-In
I believe more and more of those home monitoring solutions have those things combined into one device (e.g. ...
- 221
2
votes
0
answers
52
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Wired NFC tag that is dynamic and programmable
I'd like to send files from a computer (via my software) to an NFC tag (that can be read by an iPhone, similar to Apple Pay), but also be able to overwrite that same tag with another file on demand. ...
- 121
2
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28
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USB 802.11ac adapter with in-tree Linux driver
I am looking for a Wi-Fi adapter with:
802.11ac, 2.4 and 5GHz bands
USB interface, possibly USB 2.0 to avoid the interference associated with USB 3.0
Preferably a small dongle with a standard SMA ...
- 139
2
votes
0
answers
33
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Reliable computer for live streaming video to youtube 24/7
I have a live stream running that sends a 1080p video stream to Youtube. It receives the data from a camera in the network, converts the stream (using ffmpeg) and uploads it to the Youtube channel. ...
- 121
2
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answers
22
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Embedded linux alternatives to Raspberry Pi: corruption-proof on power removal
I'm trying to make a toy for my son-in-law. It's a robot with a complex web/app interface, currently based on the Raspberry Pi. The RPi has everything I need (and more). With one exception:
Because ...
- 121
2
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0
answers
28
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Choice of single-board computer for video output in embedded system
I am developing a product that incorporates various sensors and actuators, and also a monitoring display (5" 800x480 TFT LCD HDMI).
Right now I have everything figured out with an Arduino handling ...
- 121
2
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0
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64
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Inexpensive Electronic Task Board
I'm looking for something inexpensive to use as an electronic task board mounted on the wall in a house spending under or close to $50 if possible.
Preferably a 7" screen minimum. 3" seems to small.
...
- 271
2
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answers
37
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1080P dual in car camera
In car cameras, now I know its been done before but the ones I found on Google are fairly old now, most are not 1080p or if they are its only a single camera setup.
What I'm looking to do is have a ...
Darren
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What's an accurate and affordable indoor positioning system
TL;DR version
I'd like hardware capable of doing these things
Triangulate positions of nodes
Be accurate down to 1-6 inches
Able to see through fairly thin objects, like people/trees
Fairly ...
- 163
1
vote
1
answer
41
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1-2 TB SSD Recommendation for Raspberry Pi 3
Running a Raspberry Pi 3 as a home media server (using openmediavault).
Currently connected via USB (USB 2?) to an old Seagate 2TB HDD, but I think it’s dying (making strange noises, can't read from ...
- 111
1
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0
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I have a Raspberry Pi 4B and I'd like to make a NAS with it
I've seen a few different bits & bobs that will let one add SATA to a Raspberry Pi, but I'd really love an enclosure that gives me 2x SATA and space for a couple 2.5" SSDs. Is there anything ...
- 11
1
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23
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Night vision camera
I'm looking for a nightvision camera. It's meant to be relatively cheap (under $70). I want to use it with a device similar to the Raspberry Pi 4B, but the connector does not matter. Currently, I've ...
- 11
1
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0
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18
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Air quality measurement, for ESP32 or Raspberry PI
I am looking for a sensor which can measure air quality (pollution, pollen, etc), plus temperature, humidity, CO2, etc.
It's for a hobby project. I would prefer to use an ESP32, can accept using a ...
1
vote
0
answers
508
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Micro projector for smart glasses?
I wanted to know if anyone out there knows of any micro-projectors that I could use in a smart glasses project. I'm going to take some glasses, a raspberry pi, some 3D-printed materials, and (...
- 119
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0
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23
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Cheap AVB (audio) setup
I am looking for some relatively cheap AVB talkers (approx 50-200 EUR; if that's not possible what is my cheapest option?). Most importantly talkers should have digital input(s) like S/PDIF or TOSLINK....
- 191
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17
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Lead acid (PbA) charger and fuel gauge
I want a charger and SoC determiner ic/with example (sample) circuit or a product for a Lead acid (PbA) battery 12V/65Ah. Which can send the SoC through a I2C port to my microcontroller (Raspberry Pi)....
- 151
1
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20
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Banana Pi + Android + Touchscreen
I am looking at doing a small build for a project, however before buying all the hardware I just wanted to know if what I'm attempting is even possible?
I am looking at using the Banana Pi M2+ to ...
- 11
1
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12
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Looking for a 4 output brass, electronic, water valve
I'm planning a small irrigation project for a home, indoor garden. I'd like to control water to four different plants using a Raspberry Pi and a single water source.
I'm looking for something like ...
- 11
1
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0
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9
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Programmable RFID card
I'm new to RFID technology and cryptography. So, I'm trying to apply light weight cryptography in RFID tags as a part of my project.
I'm already able to read and write information in some passive ...
1
vote
0
answers
15
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power bank charging while being charged
I'm using Tecknet 16750mAh power banks to provide power to Raspberry Pis. I'm really happy with them. Power is provided uninterrupted when the bank is being charged, when the bank charging power goes ...
- 111
1
vote
0
answers
49
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Long range communication module with high data rate (e.g. for video streaming)?
I am building a quadcopter and I am searching for a communication module for the raspberry pi, which can send big data over long range.
I need a module with a range of approximately 1 - 2 km range, a ...
- 119
1
vote
0
answers
26
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Searching for Rackmount hardware - raspberry pi 2 performance lookalike
I am looking for a hardware which can be mounted into a rack.
There is no specific performance requirements:
min 1GB RAM
ARM64 or x86 based architecture
A normal Ubuntu Core with a small JAVA applet ...
- 111
1
vote
0
answers
380
views
Linux Supported Webcam for OpenCV
I would like to buy a webcam to use for computer vision. It should cost no more than $35, preferably around $20, and have high resolution and low sensor noise. a 1920x1080 sensor would be ideal. It ...
- 11
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16
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Best battery hardware for supplying the Raspberry Pi 4
I have the following hardware in my system with Raspberry Pi 4:
Pi 4
7" HDMI display https://pt.aliexpress.com/item/1005003840302925.html
Custom circuit board for a miliohmmeter
All that gives ...
- 101
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20
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Cheapest single-board computer with a USB host connector
I'm looking for the near-cheapest single-board computer that can be a USB host (i.e. typically has a USB type A connector, if populated, but other USB connectors are OK as long that connector can be a ...
- 101
0
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23
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Which Raspberry Pi 4 compatible modem with SMS, MMS and Audio Voice
I am looking for a decent, linux/rpi-compatible LTE/4G modem hat, with voicecalling, texting and MMS support that works in European Union countries.
I tried two shields:
SIM7600E-H_4G_HAT https://www....
- 1
0
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0
answers
67
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Are there NAS / Docks that supports SanDisk Extreme Pro SSD?
I was looking at NAS and they are all supporting bulky and slow SATA disks or even if it's SSDs, it looks like they're targeting lower speed ones (~500 MB/s) like https://www.windowscentral.com/best-...
- 101
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45
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Which NAS or Motherboard should I buy?
Requirements
I am looking for a NAS or motherboard with the following features:
It should hold 4 or 5 SATA 3.5" disks
10 Gigabit Ethernet support
I want to use ZFS. The NAS should perform well ...
- 115
0
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0
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23
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SBC with RS-232 (>= 2) and a case
I am looking for a single-board-computer with the following requirements.
performance is not too important
must support modern Linux (Debian)
2 (better 3) RS-232 interfaces
availability of a compact ...
- 101
0
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0
answers
14
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More powerful ESP9266 based microcontroller than nodemcu
I am currently working with Nodemcu. I am running a very long code with many HTTP requests. After 3 http requests, the nodemcu gets crashed. It is unable to handle. I am looking for a WiFi ...
