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by xss
Thu Aug 01, 2019 12:04 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Miss the 1st key press event when BLE Keyboard wakeup
Replies: 0
Views: 131

Miss the 1st key press event when BLE Keyboard wakeup

Hi Masters, I find a tricky problem when we connect a BLE keyboard with Raspberry. Ok, let's discript it with detail: 1、I am working on raspberry zero W with my project. And the os version is (get it using uname -a): Linux raspberrypi 4.19.58+ #1245 Fri Jul 12 17:20:08 BST 2019 armv6l GNU/Linux 2、I ...
by xss
Sat Jun 29, 2019 8:43 am
Forum: Camera board
Topic: Official V4L2 driver
Replies: 557
Views: 466557

Re: Official V4L2 driver

Hi gurus, As a newbie, I don't know what is the different bwtween v4l2 and picamera. I don't mean the language but how to deal with camera data. I steal a photo from picamera project : https://picamera.readthedocs.io/en/release-1.13/_images/camera_architecture.svg When we use a csi camera, the VPU w...

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