Q37.INFO

Raspberry Pi

Mon, 01 Jan 0001 00:00:00 +0000

Raspberry Pi #

This page is about the Raspberry Pi Pico (W).

MicroPython #

Installation #

To install MicroPython on the Pico, go to https://www.raspberrypi.com/documentation/microcontrollers/, download the appropriate .uf2 file, connect the Pico to the computer while pushing the BOOTSEL button, release the button and copy the .uf2 file to the device.

To program in MicroPython, the common way is to use Thonny, an IDE which also handles the source code upload and running on the Pico. Another way is to use your usual editor to write the (Micro)Python source code and adafruit-ampy (TUI tool) to upload and run the programs on the device.

Miscellaneous

Mon, 01 Jan 0001 00:00:00 +0000

Miscellaneous #

https://superuser.com/questions/1595994/dont-let-websites-overwrite-clipboard-in-firefox-without-explicitly-giving-perm

Some web site forbid the paste of content in input field (email, password… field). On Firefox, you can try to change one of following settings in the about:config page:

dom.event.clipboardevents.enabled to false,
dom.allow_cut_copy to false;
dom.events.asyncClipboard.dataTransfer to false (do not exist by defaults, hence already considered to be set to false).

Running time command on more than one command #

https://unix.stackexchange.com/questions/46051/how-to-run-time-on-multiple-commands-and-write-the-time-output-to-file

ESP32

Mon, 01 Jan 0001 00:00:00 +0000

ESP32 #

I2C handling on ESP32-C3 #

Almost all GPIOs pair can handle hardware I2C, but only one at a time.

systemd

Mon, 01 Jan 0001 00:00:00 +0000

Creating a service handled by systemd #

This is only a sort of reminder on how to install Epeios related daemons on a Debian system. It’s not a comprehensive documentation about sytemd.

Unit file #

To create a service for systemd, you have to create a .service suffixed file in /etc/systemd/system/ which looks like:

[Unit]
Description=<description>
After=network.target

[Service]
ExecStart=<command>
Restart=always

[Install]
WantedBy=multi-user.target

where <description> is a string describing the service, and <command> the command with its arguments to launch the daemon. If <command> contains % symbols, they must be doubled!
Example:

Q37.INFO

Raspberry Pi

Raspberry Pi #

MicroPython #

Installation #

Miscellaneous

Miscellaneous #

Clipboard related events in browser #

Running time command on more than one command #

ESP32

ESP32 #

I2C handling on ESP32-C3 #

systemd

Creating a service handled by systemd #

Unit file #