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Adafruit Raspberry Pi Tutorial Lesson five: Using the control cable

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. Please refer to the requirements at the end of this article for reprint.OverviewIn this lesson you will learn how to control your Raspberry

Building an aircraft observer based on Raspberry Pi

This project uses Raspberry Pi with ultra-low-cost software radio (SDR) hardware to receive tracking information sent from an airborne S-mode transponder outside millions of miles. The Raspberry Pi is equipped with a smart 3.5-inch TFT display to provide a convenient overview of aircraft activities. HardwareThe rtl2832u-based small SDR receiver (124-5461) is designed for DVB-T reception and is on the market for the first time. However, due to the efforts of the Linux kernel hackers over th

Duanxx's Beaglebone Learning: Installing a Gpio python library

First step: Upgrade DTC Comiler ro enable SPIWget-c https://raw.githubusercontent.com/RobertCNelson/tools/master/pkgs/dtc.shchmod +x dtc.sh./dtc.shReference URL: Https://learn.adafruit.com/introduction-to-the-beaglebone-black-device-tree/compiling-an-overlayStep Two: Install Adafruit ' s beaglebone IO Python Librarysudo ntpdate pool.ntp.orgsudo apt-get updatesudo apt-get install build-essential python-dev python-pip python-smbus-ygit clone git://githu

Raspberry Pi 3b+gpsd 3.16 does not boot automatically after the problem

Since the previous post was resolved by compiling the gpsd3.16 version of GPSD 3.11 after the Raspberry Pi does not work, you want to configure GPSD 3.16 to start automatically. But after a constant attempt to discover or not succeed, a learning document was found in the process: HTTPS://LEARN.ADAFRUIT.COM/ADAFRUIT-ULTIMATE-GPS-HAT-FOR-RASPBERRY-PI/USE-GPSD. I think the GPSD 3.16 itself is no problem. Just I was missing before using the command sudo g

An integrated approach to LCD1602 under Arduino (middle)--how to reduce the connection of 1602, Liquidcrystal Library, liquidcrystal the solution of the bug in the library

the problem is between Liquidcrystal::write (uint8_t) and size_t print::write (const char*) two methods.The original code is as follows:1#include 2 3#include 4 5 /*6 liquidcrystal library-custom characters7 8 demonstrates how to add custom characters on an LCD display. 9 The Liquidcrystal Library works with all LCD displays that isTen compatible with the Hitachi HD44780 driver. There is many of One them out there, and you can usually tell them by the 16-pin interface. A - This sketch prints

Raspberry Pi on the Cloud (2): Uploading sensor data to AWS IoT and leveraging Kibana for presentation

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 connected to the data input pin, and the rightmost pin (#4) is grounded.The Raspberry Pi 3B has a total of 40 pins (gpio,general Purpose I/O

Beaglebone Black-Controls the LED lights on the BBB board

self.state! = "Off":Os.system ("Echo 0 >%sbrightness"% self.led_path)Self.state = "Off"LEDs = [Simpleled (i) for I in range (4)]While True:For j in Range (4):LEDS[J]. On ()Time.sleep (1)For j in Range (4):LEDS[J]. OFF ()Time.sleep (1)You like to use CLOUD9 to open a file to paste the above code up, and then run, or command line execution, the same effect. Flash ...Adafruit What's wrong with that I don't study. Hands-on, clothed. It's very simple. The

Online learning website

school students. howcast-Learn small skills in everyday life through video. Memrise-uses the concept of gameplay to learn the language. Schooltube-for primary and secondary students, said there are 500,000 videos. instructables-a DIY website. Creativelive-teaches you the skills of photography, music, design, etc., to pay. Do It yourself-teach you to become a home improvement person. Adafruit Learning system-offers free DIY

NFC Learning Notes--three (install LIBNFC on Windows operating system)

steps, you can compile a 32-bit program. For 64-bit systems, 32-bit, 64-bit applications can run, but 64-bit programs run only on 64-bit operating systems.a.32 bit MinGW GCCLibusb-win32-bin-1.2.6.0\lib\gcc\libusb.ab.64 bit MinGW GCCConnect directly to Libusb0.dll or create your own import Libc.32 bit MSVC (=microsoft Visual C + +)Libusb-win32-bin-1.2.6.0\lib\msvc\libusb.libd.64 bit MSVCLibusb-win32-bin-1.2.6.0\lib\msvc_x64\libusb.libc.64 bit MSVC for IA64Libusb-win32-bin-1.2.6.0\lib\bcc\libusb.

Arduino ADC + analog temperature sensor lm35d

, atmega328p provides an internal reference source of 1 v. When measured at room temperature, the output voltage of lm35 is several hundred MV magnitude. Therefore, an internal reference source can be used to obtain a higher measurement resolution. If the 5 V power supply voltage is used as the reference source, the measurement resolution is 5000mV/1024 = ~ 9mV, corresponding temperature 0.49 °C; If the internal reference source of 1.1v is used, the measurement resolution is 1100mV/1024 = ~ 1

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