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ArduCAM / RaspberryPi

This is Arducam camera demos used on Raspberry Pi paltform
BSD 3-Clause "New" or "Revised" License
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Possible conflict with RaspberryPi display? #32

Open johnb8 opened 4 years ago

johnb8 commented 4 years ago

When using an arducam imx219 motorized focus camera with the RaspberryPi touch screen attached, the display and camera will occasionally lock up when taking pictures and changing focus.

I'm running Autofocus.py.

I think there's some sort of i2c conflict that causes i2c-0 to lock up sometimes, resulting in the pi being unable to receive touch input from the display or control the camera. I can unlock it by running rmmod i2c_dev then modprobe i2c_dev then i2cdetect -y 0.

ArduCAM commented 4 years ago

Yes, you are right, it is a known issue. The Raspberry pi touch screen use the I2C-0 as well, and once you touch the screen, there are communications on the bus, so it will conflict with the autofocus driver controller that use the same I2C-0 bus.

ArduCAM commented 4 years ago

You probably need to use another Raspberry pi touch screen like: https://www.amazon.com/UCTRONICS-Raspberry-1024×600-Capacitive-Touchscreen/dp/B07VWDDWQ9

tkircher commented 4 years ago

Is it possible to have a version of the library that uses i2c-1? I want to use both the official touchscreen and the arducam camera, and I'm willing to cut the SCL and SDA traces on the cable and connect them to the RPi i2c-1 pins (3, 5).

UCTRONICS commented 4 years ago

Arducam release software i2c library. You can get it here: https://github.com/ArduCAM/MIPI_Camera/blob/sotwarei2c/RPI/lib/libarducam_mipicamera.so It will not occupied i2c0 source.

tkircher commented 4 years ago

Thanks!