raspberry pi terminal commands

sleep 0.5 play 62 sleep 0.5 play 64 sleep 0.5 play 60 sleep 0.5end You can enter frere to call this method later. For example, call in a loop: 4.times do frereend 6. Synths (synthesizer) The synthesizer enables the play method to make different sound effects. The default synthesizer is "pretty_bell", but you can change it by yourself: "pretty_bell""dull_bell""beep""saw_beep""fm" Try different synthesizer: with_synth "fm"2.times do play 60 sleep 0.5 play 62 sleep 0.5end 7. threads

Brief introductionA simple device for the control sensor of the terminalFeatures that can be implementedIt can realize real-time monitoring of Raspberry Pi terminal by mobile phone, camera gimbal manipulation, intrusion alarm, temperature detection, light control, automatic light control and other functions.Equipment picturesRunAll the hardware that needs to be u

of the CPU is detected and written into the system files, and timed refresh. The specific path to this file is/sys/class/thermal/thermal_zone0/temp, which is a read-only file. We only need to access this file to get the current CPU temperature. Viewing through the graphical interface is simple and only provides a way to view it using terminal commands.Enter the following command at the terminal: Cd/sys/cla

This book is divided into 18 chapters, the first 3 chapters are the basic chapters of the book, the main introduction of the Raspberry Pi some basic conditions and basic operations, to let readers understand the past life of Raspberry Pi, master the basic use of Raspberry

Raspberry Pi uses peanut shells for Internet access and raspberry peanut shells Raspberrypi uses the Intranet ing of peanut shells.I. Raspberry Pi environment II. Required Software III. Operation Method IV. Additional instructions: these

xtightvncviewer package: sudo apt-get install xtightvncviewer -For other platforms, you can download TightVNC from tightvnc.com. Automation and run at boot (Automatic startup) You can create a simple file on Raspberry Pi and save some commands to run the VNC service. Save the commands so that you do not need to remem

Adafruit Raspberry Pi Tutorial Lesson five: Using the control cableTime 2014-05-09 01:11:20 geek Fan Original http://www.geekfan.net/9095/ Theme Raspberry Pi MacOS Linux This article is translated from adafruit.com by Geek fan-boyd Wang. Welcome to the Geek Translation team and join us in translating and sharing. Plea

= g # Top bottom = g # Bottom OpenURL = w # Open Song Home rate = R # Mark like/cancel like next = n # next Song bye = b # no longer play quit = q # exit pause = p # pause loop = L # single Loop mute = m # mute code /li> Problems encounteredRaspberry Pi Interface cannot display ChineseUsing the command sudo raspi-config, use the SPACEBAR to tick the front with "zh-cn UTF-8" option.Then sudo rebootTo modify the encoding of the SSH client, take Xs

output mode may not be ideal. At this time, you need to adjust it. Raspberry Pi 2 does not have a traditional BIOS, so some underlying configurations such as HDMI output areconfig.txtFile implementation. This operation can certainly be performed on a terminal via SSH remotely. However, here we will introduce a small plug-in that can be completed through a graphi

Name This step is not required, but I strongly recommend that you plan to use multiple Raspberry Pi devices if you are working.Sudo leafpad/etc/hostname Enter the desired host name and save the file. My host name is "gitpi ".Then, enter the following command:Sudo leafpad/etc/hosts Replace all "raspberrypi" with the new host name you entered in the previous step. Then restart your

confirm the process, and the selection will then start expanding the space directly.4.2 Change user PASSWORD (modify password)Raspberry Pi Default User is pi, password is raspberry. You can change the pi password here. Other user management can be consulted here.4.3 Enable