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Newest 'peripherals' Questions - Raspberry Pi Stack Exchange
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Learn more about TeamsQuestions tagged [peripherals]
Peripherals are devices connected to the Raspberry Pi, but external from it.
131 questions
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0
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0
answers
43
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Added peripherals and RPi5 shut down and cannot boot
I've been working with the rpi5 connected to various external hardware (ex. HC-SR04 ultrasonic sensors, 12V servo motors), however after integrating a new component the rpi shut down and refuses to ...
0
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0
answers
26
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What is the DMA frame end (as referred in the official manual)
The official data sheet contains a remark that the TA bit in SPI_CS register is automatically reset on "dma_frame_end impulse" (see p 138 Table 160 SPI_CS register).
However there is no ...
0
votes
1
answer
252
views
Is this PCIe to M.2 adapter good to attach Google Coral AI M.2 Accelerator A+E key
I wanted to connect a Google Coral AI M.2 Accelerator A+E key Edge TPU device to Raspberry Pi 5 to run an object detection model on it (which I ordered from this link), I ordered Coolwell for ...
- 101
1
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0
answers
50
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When I put a bit in GPSET to 1, what is the actual mechanism that "reads" this register and put the electric line to HIGH Voltage? Who does this? How?
I don't know what is the actual mechanism.
When the CPU sets that register(GPSET)'s bit to 1, what entity/element reads that and is responsible to activate the electric line to HIGH? How is this done?
0
votes
0
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389
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Using DMA for efficient memory copying
Some background info about my problem:
I have an external device that is constantly giving me data through SPI
I handle SPI reads with DMA from userspace, as kernel based solutions (already ...
0
votes
3
answers
1k
views
USB sticks stop working with Windows 10 after being used with a Raspberry Pi 4 [closed]
I have a problem with my Raspberry Pi 4 2GB that involves USB sticks: I only have a minimal knowledge of both Linux and Raspbian so I don't know how to handle it.
My problem is: each time I use an USB ...
1
vote
2
answers
501
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Issue with DMA+PWM based signal generator
I want to generate some signal on GPIO pin on Raspberry PI Zero W using DMA control blocks and PWM to pace data. However I faced with some problems while trying to generate signal at ~10-50kHz.
When I ...
3
votes
1
answer
2k
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Can I record HD 1080 p 60 fps through USB on a Raspberry Pi 3 or 4?
I have a set-top box with HDMI output and want to record some programs from it on a Raspberry Pi (model 3 or 4).
I found some HDMI to USB 3.0 converters with HDMI 'loop-out' which would enable us to ...
1
vote
1
answer
530
views
Permission denied - Scheduling Witty Pi script
I am trying to create a new schedule for WittyPi (On/off scheduling of RaspberryPi). In the manual it seemed really easy (https://www.uugear.com/doc/WittyPi3_UserManual.pdf) but I fear I messed up ...
1
vote
1
answer
540
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Should I power RaspPI + peripherals from hub or use GPIO?
I’m planning my first “proper” Raspberry Pi project.
I want the end result to be user friendly, and so should use only a single power source.
But internally I need to power several separate devices: ...
2
votes
2
answers
1k
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i2c communication problem with SSD1327 OLED display on a Pi 4
I have the following 128 x 128 OLED display:
https://www.lcdwiki.com/zh/1.5inch_OLED_Module_SKU:MC01503
which is driven by a SSD1327 module.
I'm trying to use this with a Pi 4 and the Luma.oled python ...
5
votes
3
answers
678
views
What hardware peripherals might be capable of reading 6.144, or better yet, 9.216 megabits/second?
I'm hoping to interface a Raspberry Pi 4 with an 8 channel, 48 kHz ADC. Ideally a 24 bit ADC, which if my math is right means 9.216 megabits per second. But a 16 bit ADC would be acceptable: that ...
0
votes
1
answer
3k
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How to restart/release rfcomm for bluetooth communication?
I am trying to connect raspberry pi to my galaxy note to use it for serial communication. I have somewhat succeeded at that.
First I paired it and trusted through bluetoothctl. Then I run sudo rfcomm ...
2
votes
0
answers
86
views
Extend Official Display Connections
Is there a type of extender for the official Pi display connections? I don't mean the 15 pin FFC, but the two directly on the display. I'm mounting the driver board separately from the display in a ...
3
votes
0
answers
376
views
Coin acceptor misbehave when connected on raspberry pi
I have a Bill note acceptor and a Coin acceptor, and I have wrote a program in C# to communicate with these two machines, and it worked perfectly on windows, after that I migrated this application to ...
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