Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [hardware]

Questions relating to the physical components that the Raspberry Pi consists of.

4
votes
0answers
104 views

How does the hardware cause long delays?

I want to write a bit-banging driver for a Raspberry Pi 3. For testing I developed a simple Linux kernel mode driver which toggles a GPIO pin with approx. 1Mhz. Here is the code excerpt. static ...
3
votes
0answers
47 views

Read/Write LAN9512 EEPROM

We are building a device around the Compute Module 3 and since it needs internet access we decided to go with the LAN9512 that was also used in the Raspberry Pi earlier. The LAN9512 requires an ...
3
votes
0answers
335 views

Why is my RPi freezing of its own accord?

I own a RPi 3 Model B, which does a very good job of freezing of its own accord, even when not much activity is being done. I mean, I can still move the mouse, but it stays in its last frame and I ...
3
votes
0answers
344 views

Networking - Two Raspberry Pis communicating over wired connection

As a part of my research I need to have two Raspberry Pis and a Pixhawk all within the body of a UAV. I know I can get one Pi connected to the Pixhawk over mavlink, but how can I get the two Pis ...
3
votes
0answers
2k views

Possible to repair Raspberry Pi 3 SD card slot?

I accidentally pulled the pi out of the case before realizing the SD card was still attached. The right pad can still be soldered but the left one appears to have been pulled off. Is there anything I ...
3
votes
0answers
524 views

DS18B20 temperature sensor not found in folder

I've bought the camjam edukit 2 for my pi which includes the DS18B20 temperature sensor. However, after going over the instructions 20 times, rebuilding it a same amount and searching online, I still ...
2
votes
0answers
123 views

How to connect CMOS image Sensor to Raspberry Pi

I'm wondering if it would be possible to take an image sensor out of an old camera and plug it in to a raspberry pi via the csi connector. For Example would it be possible to take one like this from ...
2
votes
0answers
36 views

Any issue with magnet too close to rpi?

I don't think this is an issue, but a search turns up nothing and I just want to be sure. I'm working on a project that involves a single speaker mounted approx. 2.5 to 3cm above a Raspberry Pi 3. ...
2
votes
0answers
803 views

WiFi not working on fresh install

I have had my Raspberry Pi for a few years now and today I went to do a fresh reinstall of Raspbian. I downloaded v2.4.4 of NOOBs and used that to install Raspbian. Everything installs nicely except ...
2
votes
0answers
176 views

Raspberry Pi + Windows 10 IoT Core + RS485

Has somebody ever worked with windows 10 IoT Core and used RS485? I would like to receive some signals from the RS485 device. I would like to do this with Windows universal app.
2
votes
0answers
143 views

Best Way To Power Raspberry Pi Zero and External 4.5 - 36v Circuit

I am creating a drone where I have a Raspberry Pi Zero, and a Motozero. I need to supply the Motozero with power from 4.5 to 36 volts as well as the Raspberry Pi Zero. What is the best way to do ...
2
votes
0answers
2k views

Pi bluetooth not detecting any devices

Board: Raspberry Pi 3 I have a Pi which is unable to detect any bluetooth peripherals. I diagnosed the bluetooth service by running sudo service bluetooth status which throws the error Failed to ...
2
votes
0answers
900 views

Safest highest operating temperature of a Raspberry Pi 3 Model B

What is the safest highest operating temperature of a Raspberry Pi 3 Model B? I was able to get my temperature up to 77'C by running: fulload() { dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/...
2
votes
0answers
130 views

Problems with Kali on raspberry pi, plus some mac issues

Just yesterday I was able to boot Kali on my raspberry pi without much of a problem. The following day, however I tried booting it as usual. It showed the boot screen and everything with the four ...
2
votes
0answers
59 views

Robot running off Raspberry Pi A+

I am participating in a competition where I need to make a motorized vehicle that goes a distance you learn immediately before competing. What I have in mind is to mount a Rasp Pi A+ and a motor to a ...
2
votes
0answers
224 views

RF transmission on 314.88mhz

I've been playing around with transmission of RF signals with my pi for a home automation system. So far it has been working great. However, this was just for the 433.92mhz devices. I've managed to ...
2
votes
0answers
623 views

Specify interrupt in devicetree overlay

I have created a devicetree overlay to add an MRF24J40 transceiver to Raspberry Pi. The interface of the transceiver is SPI and an interrupt request. After some trouble the device finally appears in ...
2
votes
0answers
2k views

Using Raspberry Pi with Arduino GSM/GPRS Shield

Raspberry Pi Model B GEEETECH Arduino GPRS Shield V1.0 (bought from: bit.ly/1G0KYR7) ^ Similar somewhat to: Seeed's GPRS Shield V1.0 | Link: seeedstudio.com/wiki/GPRS_Shield_V1.0 (has more ...
2
votes
0answers
146 views

Did my Pi lockup or was it halted?

I couldn't connect to my Pi this morning until I turned it off and on again. I did this at around noon, didn't record the exact time, thereafter it connected via ssh. My sys.log state: Sep 18 23:...
2
votes
0answers
320 views

Difference between LCD Displays

I was using a Hitachi HD44780 display hooked up to GPIO pins. Sadly, it got damaged and, in a rush, I had to get a different one. It is a ADM1602U serial enabled display. However I don't plan to use ...
2
votes
0answers
2k views

Getting a Mimo Monitor working with Raspberry Pi

This isn't a question, as I have finally figured out how to get this all to work. I've had to break the links because I don't have enough reputation. sigh. Instructions to use Mimo Monitors UM-710 (...
1
vote
0answers
12 views

Trouble connecting USB devices with Raspberry Pi Compute Module on custom PCB

I am working with a team designing a PCB that works with the Raspberry Pi Compute Module 3 card. We are having a bit of trouble with the USB ports. The schematic of the USB portion is somewhat similar ...
1
vote
0answers
55 views

project with my son

I am doing a pi project with my son. For the first part of the project he built a meccanno car and now we are going to power it. My setup is illustrated here: https://prnt.sc/nb8oph As you can see ...
1
vote
0answers
43 views

mlx90640 how to connect

I brought a mlx90640 to connect to a raspberry pi. I have never connected something to a raspberry pi before and I don't know where to connect it or what cables I need. The device looks like this: ...
1
vote
0answers
84 views

Storage device interface through MIPI CSI+DSI connections

So I love the Raspberry Pi and currently own and use a model 3b (not plus) for learning more about linux and hardware as well as simple projects like a DNS cache server. Lately I was thinking about ...
1
vote
0answers
90 views

PI NOIR Camera Not Working

I recently bought a Raspberry Pi 3B+ and a Pi Noir Camera and attempted to set them up. I followed the install instructions on the Pi website for the board and camera, and unfortunately received an ...
1
vote
0answers
66 views

Faulty Ethernet interface?

After running apt-upgrade on a Raspberry Pi B+ 512MB to bring it to the current version of Raspbian GNU/Linux 9.4 (stretch) the Ethernet connection stopped working. The interface's behaviour after a ...
1
vote
0answers
299 views

Connecting Pi to an OPC server

I want to connect a Pi to an OPC-DA server to acquire data over an Ethernet connection. Does the Pi's Ethernet port function for non-internet uses? Extra twist... if I want to connect to both the OPC ...
1
vote
0answers
66 views

Toshiba TOSVERT VF-S15 VFD and USB001Z

I'm currently trying to drive an AC Motor using the TOSHIBA TOSVERT VF-S15 Inverter and the USB-to-serial communication unit USB001Z. The problem is that the rpi recognized the USB001Z but it seems ...
1
vote
0answers
132 views

Hardware setup for LED with external power supply

I am looking for help to use a raspberry pi 3 as a multiple LED switcher. The setup should be: 6 LEDs at 3W, 9.6V and 300mA (each!) a external power supply for the LEDs a breadboard to put everything ...
1
vote
0answers
159 views

Hardware driver for LinuxCNC

Is it possible to create a hardware driver for LinuxCNC on a Raspberry Pi without violating the hardware design philosophy of LinuxCNC (stated here)? If yes, could this driver make use of any ...
1
vote
0answers
23 views

Network accessible screen

Using Raspi, does anyone know of a way to take an old desktop monitor and make it network accessible from any pc? The idea being that you could access it much in the same way you might access ...
1
vote
0answers
123 views

Most likely hardware failure to take out WiFi, GPIO, and USB/Ethernet on Pi 3?

Short version: What is the most likely hardware failure that would prevent the USB ports from being powered, the GPIO UART pins from working at all, and the WiFi chipset from being initialized, ...
1
vote
0answers
210 views

Has anyone tried connecting a adafruit hat board and an LCD Screen?

We use the Raspberry Pi 3 boards for an elementary school robotics program. We saw these cool Kuman 3.5" touch screens that said they were HDMI (which I assumed meant they connected directly into the ...
1
vote
0answers
873 views

Dead USB OTG in Pi Zero W

I bought my first Pi, a Raspberry Pi Zero W 1.1 from CanaKit and I am having trouble with its USB port. I tried booting latest Raspbian, Raspbian Lite and Noobs, but in all cases it's the same: no ...
1
vote
0answers
120 views

Would a Raspberry Pi be feasible for use on a CubeSat?

I am putting together a cubesat for propulsion testing, and will be going to orbit early 2018. I need to put this one together for a cheap as possible, while having some decent power. The next one ...
1
vote
0answers
2k views

OpenCV VideoWriter and Hardware h264

I'm working on a python/pygame application, and i'm facing some difficulties when I try to capture a video from a usb camera (640x480) to a h264 encoded file, through OpenCV. Everything work fine with ...
1
vote
0answers
219 views

Keyboard and Mouse not working

I am using a Pi Zero, with Raspbian imaged onto the SD card. The OS is showing up on the monitor, but the mouse and keyboard (both AmazonBasics products) just don't work. I am using a 4 port hub to ...
1
vote
0answers
38 views

RPi3/B DC characteristics

I'm looking on page 13 of this datasheet for the Raspberry Pi's compute modules (CM1, CM3, and CM3L), and in Table 5 "DC Characteristics" under the "Conditions" column there is an undefined condition ...
1
vote
0answers
158 views

How to connect RPi 2B with SM900?

I have a Raspberry Pi 2B and a SM900 module and I want to make a UART connect with jumpers using raspberry GPIO and the shield pins. My problem is how could I make it? How to power up the SM900? I ...
1
vote
0answers
127 views

ZoomFloppy and Raspberry Pi

I would like to install a ZoomFloppy to my Raspberry Pi 3. How can I do that? I just found older instructions for windows and macs. I'd like to have a step by step guide to do so. TIA
1
vote
0answers
4k views

Does VLC Media Player 2.2.4 support hardware acceleration on a Raspberry Pi 3?

It is all in the question. I want to know if the latest stable version of VLC Media Player (2.2.4) supports hardware acceleration on a Raspberry Pi 3. The GPU is of course the VideoCore IV. When using ...
1
vote
0answers
130 views

Using a potentiometer to control a servo HAT

I bought the servo hat from Adafruit and a MCP 3008. My goal is to control a servo with a potentiometer with my Raspberry Pi. With a Arduino there is a function called map. Is a there a similar way to ...
1
vote
0answers
89 views

Generation of clk signal by the use of the SPI Protocol

The model which i am using is Raspberry Pi 2 Model B. The use of spi came across when i need to convert analogue value into digital value through the use of the MCP3008 chip. I would like to mention ...
1
vote
0answers
467 views

How to reset a compute module stuck in kernel panic?

My compute module boots up into kernel panic, I can't get a console to enter commands to exit, stop, reset, anything. I'm also a newbie, I know very little about Linux, so I rely heavily on eBooks, ...
1
vote
0answers
150 views

Is my Pi dead after plugging in four USB hard drives, if the power and ACT LEDs still light up?

My Raspberry Pi 2 B (rev a01041) has been working great for ages. I usually have two hard drives plugged into it. Yesterday, I plugged in another one. Today I plugged in a fourth. Immediately, the Pi ...
1
vote
0answers
111 views

Cant type in CLI

I've just got a Raspberry Pi 1 B. I installed Raspbian, I've worked with it for full day and everything was working as it should be. I used to booted into the desktop, now I have changed that to boot ...
1
vote
0answers
364 views

Measure input voltage of Raspberry Pi B+ running Ubuntu

I just learned that a red flashing LED indicates voltage below 4.63V on a Raspberry Pi Model B+. Thus, the Pi seems to "know" about it's input voltage. So my question is: Is there a command to ...
1
vote
0answers
3k views

Connecting an Apple mouse and keyboard to Model B+

I have been given a new Model B+ for Fathers Day. I have connected the computer but my keyboard/mouse that I use with my Mac computer will not work with the PI Do I need a new keyboard/mouse to use ...
1
vote
0answers
2k views

Control LCD brightness via Raspberry Pi

I have bought a display from Adafruit. It is a HDMI 7 inch touchscreen display. Is it possible to control the brightness of the display via written software on Raspberry Pi OS? If so, any advice or ...