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Requirement
Without a network, a keyboard, or a monitor, controlling Raspberry Pi becomes a problem. I accidentally saw an article today.ArticleThat is, you can directly control the Raspberry Pi through the serial port. Give a decisive try. The effect is good. Share it with others!Pai_^ Preparation
As small as you can't imagine a computer with a USB flash drive sold by Raspberry Pi _ love alive evolife.cn
As small as you can't imagine Raspberry Pi selling USB flash disks
Date: 17:58:26
Author: AI live temporary worker
Source: aliyun.com
Comment (3)
The ever-changing speed of technology is far be
Use Raspberry Pi to send push notifications to smartphones
This project explains how to send push notifications from Raspberry Pi to iOS and Android devices. You only need to use a free push app. The main idea here is to use an electromagnetic sensor door to trigger information push events. When the electromagnetic doo
-disk-utilityIn the graphic environment.
Then insert the microSD card back to Raspberry Pi 2 and start the system. At the first startup, it will automatically expand the partition to occupy the entire SD card.Kodi Chinese interface
OpenELEC is equipped with the latest Kodi 14.X development version, default skin, English interface. If you connect to a TV through H
Raspberry Pi--a card-type machine that is based on the size of a Linux system and has only a credit card size. Raspberry According to the inventor's idea, he was designed to reduce the cost of learning program development. You can understand it as a rudimentary version of the computer.
program, please visit the blog: https://www.cnblogs.com/lulipro/p/5992172.html
This experiment was first tried in a new field and has never previously been approached by Raspberry Pi based program development. At first, there were a lot of problems: 1. The Raspberry P
Prepare
Raspberry Pi Development Board ( Click here to purchase ) (has been brushed into the official Raspbian system )
USB to Serial board ( click here to buy )
DuPont Line (4 root)
Connection
串口板 树莓派--------------------VCC +5V(非必须
a more complex input with timing. Here are two points to note: The SetMode is in BCM mode, and the pin used is the same as the BCM number corresponding to the pin graph. You can also set the physical PIN number to use SetMode (GPIO). BOARD). The input/output mode is input when receiving data/status relative to host or Raspberry Pi, output i²c
I²c can be a bus to
option will display the following information:This tool provides a more straightforward way to set the initial configuration of the Raspberry Pi. Although this tool can be run at any time, some of these options may not work if you have already customized your device in depth.4.10. Finish (completed)When you have completed your changes and clicked on this button, you will be asked if you want to restart the
1. Preparatory work:
1.1 Development environment System Ubuntu 16 (64-bit)
1.2 Download Source: Https://github.com/raspberrypi
Linux: Raspberry Pi kernel source
Tools: Raspberry Pi cross-compilation tool
Download mode:
(1) Web download
Download zip directly
(2) Command down
hardware involved : Raspberry Pi and related kits, LED traffic lightsknowledge : Circuit Test Board, CanakitWhen you're ready, we can start. Use Raspberry Pi for LED prototype control.The first thing to understand is that access to all of the wires, resistors, and the lights
create a Raspberry Pi image.
Because the image for the X86-64 bit cannot work smoothly on Raspberry Pi (the CPU architecture and instruction set are different, I will not repeat it here), and vice versa, we will ask you if you want to create a new image for Raspberry
Now the new version of the Raspberry Pi kernel because to be compatible with Raspberry Pi 2 and Raspberry Pi B + and other previous versions, the use of the original different kernel operating mode, using the device tree, more fle
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
Temperaturedefget_cpu_temp (): Cpu_temp_file= Open ("/sys/class/thermal/thermal_zone0/temp") Cpu_temp=Cpu_temp_file.read () cpu_temp_file.close ( )returnFloat (cpu_temp)/1000defMain (): whileTrue:strftime=time.strftime ("%y-%m-%dt%h:%m:%s") Print "Time :", StrftimePrint "cpu_temp:", Get_cpu_temp ()#Sleep 60 secondsTime.sleep (60)if __name__=='__main__': Main ()2nd step: Become the Yeelink platform developer and complete the configuration of the Raspb
Raspberry Pi on the Cloud (1): Environment preparationRaspberry Pi on the Cloud (2): Uploading sensor data to AWS IoT and leveraging Kibana for presentation1. Sensor installation and configuration 1.1 DHT22 installationThe DHT22 is a temperature and humidity sensor with 3 pins, the first pin on the left (#1) is the 3-5v power supply, the second pin (#2) is connec
Raspberry PI board because the cost is not add wireless module, do not want to be bound by the network cable, we need to own a USB wireless module. When buying the board, see the official recommended Edup wireless card, the price is appropriate, directly started.Using REALTEK8188 chip, 802.11n, transmission speed 150Mb
the component on the black drone frame.
If you want to connect the power supply parts to the power supply, pay attention to the following points. If you want to quickly connect the connector and power supply parts to the power supply, be careful about short circuits. You can remove the other end of the power supply module and then weld the battery and connector,
In this way, we can easily disconnect the drone battery and power supply components.
Finally, the battery and power supply components
Cross-compiled Raspberry Pi 2 kernel in CentOS
Cross-compilation toolchain in CentOS 6.6 x64 requires glibc-2.14 support (x86 is not needed), so first install the glibc-2.14
Install the relevant compilation tools before installation. Here I will install the entire group directly.
Yum groupinstall "Development tools"-y
Download the glibc-2.14 source code, compile,
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