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Single channel SPI DMA

The documentation on the SPI peripheral says: Two DMA channels are required, one to read from and one to write to the SPI. Is this necessarily true? I have a device where I need to write a few ...
2
votes
0answers
3k views

How to setup resistive LCD touchscreen over SPI

I've been following a guide for setting up an LCD touchscreen, without success. When the screen is plugged into the GPIO pins it just shows a white screen. After all my attempts it remains white. ...
1
vote
1answer
2k views

Problems using Brother DCP-145C USB Scanner

I'm trying to use my old Brother DCP-145C Multifunction USB-Printer as a network printer/scanner with the RPi. I roughly followed this guide so far: Setting up the printing functionality via CUPS ...
13
votes
5answers
15k views

Can I use a DHT22 as a temperature sensor for my Pi?

Is it possible to use a cheap temperature sensor such as the DHT-22 with the Raspberry Pi? I have found Arduino drivers for this and many similar things, and would be comfortable porting the code to ...
31
votes
3answers
6k views

Hooking up a Kinect?

There is a driver project established to run Kinect on Linux. See here: https://github.com/OpenKinect/libfreenect Will this work with an RPi? What are the constraints/obstacles likely to be? I'm ...