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Try and focus on the client workstation side along with the remote VNC system. On my remote Pis and local Linux workstations I set XKBOPTIONS=ctrl:nocaps in the /etc/defaults/keyboard to replace the capslock with a control key instead of swapping it. This works in a terminal using the setxkbmap -option "ctrl:nocaps" On Windows workstations I ...


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Analyzing the circuit Because you provided a high resolution image of the front and the back of the board, we can use this to examine the circuit a bit. The conventional way to wire a 12-key keypad is to have 4 row and 3 column vectors and attach all of them to a microprocessor. However, another way to encode key values is via an analog voltage. This has ...


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I'm pretty sure your lock doesn't react to a voltage level, otherwise it would be useless: connecting it to a charging capacitor will sweep through all possible voltage levels and inevitably open your lock without the need to know the code. Your lock certainly uses some sort of digital communication protocol to encode the digits you push on the keypad. I2C ...


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It's the "super key" or Windows key. As far as I'm away it's only purpose in the Raspberry Pi OS is to open the main menu (which also has a Raspberry Pi logo) which you can then navigate using the arrow keys which is handy if you don't have a mouse. On Ubuntu, there are key combinations for e.g. Super key + 1 which opens the first application in ...


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Your problem is unclear. It could be as simple as file permissions. You should not attempt to set locale manually (I used to do this on other Linux platforms so it SHOULD be possible). There are tools in raspi-config which should make sure that the correct changes are applied, although these have had known problems (see https://www.raspberrypi.org/forums/...


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How about simple keyboard? (project page on Github) Your webpage could submit either single characters, or complete text lines (e.g. SSH commands) to the webserver, and the webserver would then run them via shell_exec or similar, or feed individual characters to a pipe created with proc_open. Make sure this webpage is not accessible to everyone without ...


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Bottom line: Pi Zero cannot be used as both a USB Host and a USB Slave Pi 3 (and possibly Pi 4) can do it, see: RPI acting both as slave and as master device on its usb ports - Raspberry Pi Forums


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Assuming you has access to a Linux OS and the NOOBS file you are using is called noobs.zip unzip noobs.zip fdisk -l noobs.img Get the Start value for the Linux Type device and multiply it by Sector Size. For instance: 532480 x 512 = 272629760 Then use this value as an offset to mount the img in a folder mkdir noobs_mountpoint sudo mount -o loop,offset=...


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