All Questions
16 questions
0
votes
0
answers
879
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Pi 3B (without +) regularly losing Ethernet connection (smsc95xx)
I have a problem with some of my PIs losing Ethernet connection. This happens between every few days to a month. After the Ethernet connection is lost, it does not come back up. Besides the Ethernet ...
- 200
-1
votes
1
answer
68
views
spi driver works on pi 3 and pi 4, but not on pi cm4
I have a spi driver for an nrc7292. When I load it on a pi3 or 4 it works every time, but when I load it on a cm4 it only loads correctly about half the time. What could possibly be different? Once ...
1
vote
1
answer
1k
views
Touchscreen LCD USB (HannsG and elo) behaving unexpected on raspi 3
I tried to connect a HannsG HT225HPB 21.5'' touchscreen or an Elo ET1502L to my Raspberry Pi 3. Both connect via HDMI and USB for touch.
Both seem to work at first glance but are not really usable. ...
CommunityBot
- 1
4
votes
1
answer
378
views
Wi-Fi transfers hang on Raspberry Pi 3
I was trying to transfer a 50 MB file to my Raspberry Pi 3 via samba and I noticed that after few seconds the transfer slows down until it stops, same thing via scp. It starts but after few seconds (5-...
CommunityBot
- 1
0
votes
1
answer
45
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Twin touchscreens on Pi 3/4
I'm looking at a project where I will need to drive two separate displays from a Pi, both of which are touchscreen - specifically GT911 type on a separate I2C connection.
This will almost certainly be ...
- 181
0
votes
2
answers
104
views
SD to USB Adapter: Will the SD card appear as a USB device?
My colleague and I are writing an endurance test for SD cards (running read/write/erase block cycles). We're considering using an Raspberry Pi 3 to run the tests on.
The issue is we will be using ...
CommunityBot
- 1
0
votes
0
answers
225
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Raspberry Pi 3 and DLink N300 not working
I'm trying to get an additional wifi working on my raspberry pi 3.
uname -a
Linux raspberrypi 4.9.35-v7+ #1014 SMP Fri Jun 30 14:47:43 BST 2017 armv7l GNU/Linux
lsusb
Bus 001 Device 006: ID 0bda:...
- 101
1
vote
1
answer
462
views
Display don't work after driver install
I bought a display via eBay (https://www.ebay.at/itm/3-5-TFT-LCD-Touch-Screen-Module-320-480-RGB-Display-Case-For-Raspberry-Pi/391223449334?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749....
- 42.6k
1
vote
0
answers
696
views
Driver installation Edimax EW-7811 UTC
I am trying to install the drivers for Edimax EW-7811UTC on Raspberry Pi3 running Stretch lite. I followed the steps given in How to install EW-7811 AC600 Series and EW-7822UAC adapters on Raspberry ...
- 2,796
8
votes
1
answer
13k
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How do I use Yocto to build an sdcard image for my Raspberry Pi 3 Model B?
Background
I was starting to look at using Yocto as a system for building software images for the Raspberry Pi 3 Model B that I have. I wanted to try using Yocto as there are some projects at my ...
- 281
1
vote
0
answers
1k
views
How do I speed up MG995 servo motor using PCA9685 motor driver?
I am using PCA9685 to drive a MG995 servo motor. I am using the following code to control the servo motor.
import time,Adafruit_PCA9685
def elbow():
pwm = Adafruit_PCA9685.PCA9685()
pwm....
- 111
2
votes
0
answers
553
views
Accessing 3+ SD/MMC /dev/mmcblk devices
I've successfully followed some instructions for access 2 SD cards via SPI on a Raspberry Pi 3: https://ralimtek.com/Raspberry_Pi_Secondary_SD_Card/
How do I configure it to access more than 2 SD ...
- 131
0
votes
0
answers
310
views
Why can't my Pimoroni HyperPixel display detect multiple fingers correctly?
I recently bought PIMORONI HyperPixel Display (3.5 Capacitive 800x480 display, driven by internal ADC)
The driver is written in Python using the EVDEV lib but there are some problem reading multiple ...
- 6,337
2
votes
1
answer
634
views
Erratic errors in libfreenect on Raspberry Pi 3
I'm running a 3D SLAM application (RTAB-Map) on my Raspberry Pi 3 with Raspbian Jessie. The sensor I'm using is a Kinect v1 (Xbox 360) camera connected to one of the USB ports.
I've installed ...
- 121
0
votes
2
answers
1k
views
Communication between Raspberry Pi (RPi) 3 Model B and Copley motor driver (R23-055-10) by using RS232 Connection
I am trying to get communication between RPi3 Model B and Copley motor driver by using RS232 protocol. Copley driver replies only when ascii codes are sent to it. I want to send an ASCII code but I ...
1
vote
1
answer
3k
views
Raspberry Pi 3 Bluetooth issue
Similar to Raspberry Pi 3 Bluetooth "No default controller available" however that fix doesn't work (already have that package installed)
Running latest Raspbian and have run rpi-update, ...
CommunityBot
- 1