from the Yeelink website, combined with open source hardware or yeelink dedicated hardware, Almost without any programming, you can create quite complex iphone remote switches, remote water heaters, or DIY works such as PM2.5 detectors.Yeelink platform address is http://www.yeelink.net/, registration is very simple, after registration, we can in the "Account settings" to obtain the exclusive API KEY.API key is very important, the next step to modify the Python program upload data to the Yeelink
access mysql:
Mysql-u root-p
Then, you will be prompted to enter the password to enter mysql:
Root @ raspberrypi:/home/pi # mysql-u root-pEnter password:Welcome to the MySQL monitor. Commands endYour MySQL connection id is 43Server version: 5.5.35-0 + wheezy1 (Debian)
Copyright (c) 2000,201 3, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or it
Raspberry Pi When used alone, often need touch screen and soft keyboard for easy operation, micro-snow LCD display can better realize this function,Just as the lab buys a 3 b board and a 5inch monitor, it installs the official installation manual once.One: Material preparation
Raspberry
DIYA UAV Vision tracking system based on Raspberry Pi and PythonThe drone's image is stored and transmitted to the Earth station in real time, almost standard. If you want a bit more advanced-how do you do it directly on the drone and automate the shooting process? In fact, the visual tracking has been in some high-end consumer-class UAV has the application, but play ready-made never do their own hands;). S
Original link: http://www.raspberrypi-spy.co.uk/2014/08/how-to-reset-a-forgotten-raspberry-pi-password/The general process is this:1. First remove the SD card from the Raspberry Pi,2, on another computer, modify the initialization process to the bin directory of SH;3, and th
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As can be seen from the table above, the Raspberry Pi 2 in some places is significantly better than the Raspberry Pi version in support of the simulator. Have the above hardware
DIYA UAV Vision tracking system based on Raspberry Pi and PythonThe drone's image is stored and transmitted to the ground station in real time, which is almost standard. Suppose you want something advanced--to process the captured image directly on the drone and implement your own active control. In fact, visual tracking has been in some high-end consumer-class UAV has the application, just play out of the
cable to the power supply.
2. Use the raspi-config tool to configure Raspberry Pi
A) view IP addresses
Under normal circumstances, Raspberry Pi can be started, but he still does not know his IP address, and he cannot access the system through SSH. If he will use a router to view the IP address, it is not a pr
audio use the same interface, possibly between many people want to use the Raspberry Pi hardware PWM reason, So flexible design so that everyone has more freedom to use the space. Readme text for audio and PWM:
He Overlay and Parameter Reference
===================================
N.B. When editing this file, please preserve the indentation levels to make it simple to parse
Programmatic
: C #;
Development Platform: UWP;
Communication Protocol: MQTT;
Raspberry Pi OS: WIndows 10 IoT Core;
Database: Sqlite
Download and install the operating system:
Install the Windows 10 IoT Core Dashboard application and visit the Microsoft Developer Center https://developer.microsoft.com/en-us/windows/iot/GetStarted. select Raspberry
Starting with the Windows IoT Core 14986 release, Microsoft has added the Cortana voice assistant feature. Before, we could only use local speech recognition, and we needed to write the application to download it to the device. From now on, Microsoft has integrated the Cortana voice assistant from the system level, enabling users to start Cortana and interact with Cortana in real time with system settings. Let's try the process of using Cortana as a Windows IoT core device with
Use a network cable to connect directly to the computer without going through the router. The biggest feature of this method is to play Raspberry Pi with the least tool.I. Materials: Raspberry Pi, network cable, and laptop.1. Raspberry P
Time"--query data over a period of time#!/bin/shdbname= "Cpu.db"sqlite3 $DBNAME "select * from Tempswhere Tdatetime > DateTime (' 2014-08-02 19:00:00 ') andtdatetime "Brief description""1" 2014-08-02 19:00:00 must account for 4 figures, others must account for 2 numbers, insufficient to use 0. "2" Here does not need to increase the localtime parameter, the specific reason is unknown.5 Summary"1" When you create a table, you can use the default constraint to increase the defaults to simplify th
Raspberry Pi assembly and operating system installationFirst, the original Raspberry Pi1, Raspberry Pi 2 Model B Development Board2, SD card (this experiment project selects memory 8G SD card)3, network cable a root4, HDMI cable 1
software package is ready and can be released;
Iii. Cross-compiling source code
1. Environment
Ubuntu
2. Install Raspberry Pi cross compiling tool
Step1. download Raspberry Pi cross compiler tool https://github.com/raspberrypi/tools
Step 2: place the source code in a folder that users can share, such as/usr/tools.
Ste
How to Use image effects on Raspberry Pi
Now you can use the Raspberry Pi camera module ("raspi cam") to add a variety of image effects to your photos, just like using a card camera. The raspistill command line tool provides a wide range of image effects options for Raspberry
Make full use of the SD card space in Raspberry Pi
Generally, a 4g sd or TF card is required to create a system image for Raspberry Pi, but do you know if your SD card is 8g or 16g or larger, after various types of Linux are created and started to enter the system, only SD cards within 4 GB can be used, while the other
"select * from Temps;" In the console and return the results as follows. rpi.cpu|2014-08-03 10:40:40|48.7rpi.cpu|2014-08-03 10:41:41|48.7rpi.cpu|2014-08-03 10:42:41|49.2RPi.CPU| 2014-08-03 10:43:41|48.7rpi.cpu|2014-08-03 10:44:41|48.7rpi.cpu|2014-08-03 10:45:41|49.23 boot background run"Startup script"--auto-start.shCreate a new auto-start.sh script in this directory, as follows #!/bin/bashcd/home/pi/python-works/cpu-temp python db-insert-temp.py "Si
without your password. In this way, even if someone copies your key, they cannot impersonate you for access. If you want to use a password, enter the password, press enter, and then enter the password again as prompted. If you press enter without entering anything, the password is not used.
Now you should be able to see files such as id_ras and id_ras.pub in the. Ssh folder in your home directory:
ls ~/.sshauthorized_keys id_rsa id_rsa.pub known_hosts
HereId_rsaThe file is your private key,
for inch Pygame.event.get ()]:3 breakI found that the Raspberry Pi connection network is really slow, plug in the power to start the network for several minutes to SSH connection to the Raspberry Pi IP, as for the access to the external network, sometimes there is
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