파란크리스마스

마우스 반응 속도 개선 출처 : 라즈베리파이 무선마우스 속도 감도 문제 해결 cmdline.txt 파일의 첫줄에 usbhid.mousepoll=0 추가 / 디폴트가 8로 너무 빠르다 싶으면 숫자를 올려준다. $ sudo vi /boot/cmdline.txt 최신 버전으로 업데이트$ sudo apt-get update $ sudo apt-get upgrade XRDP 사용 출처 : Introducing PIXEL - Raspberry Pi Raspberry Pi Adds Beautiful "Pixel" Desktop Environment To ... 최신 라즈베리파이OS인 PIXEL의 경우 기본적으로 VNC서버가 설치되어 있으므로, XRDP를 사용하실 경우 VNC 서버를 삭제 해야됩니다. VNC서버 삭제 ..

출처 : Raspberry Pi to Arduino SPI Communication spi 확인 $ gpio load spi gpio: Unable to load/unload modules as this Pi has the device tree enabled. You need to run the raspi-config program (as root) and select the modules (SPI or I2C) that you wish to load/unload there and reboot. There is more information here: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=97314 배선 소스 - Arduino (Master)..

출처 : Raspberry Pi + Arduino + SPI - MitchTech | MitchTech 배선 소스 - Arduino (Slave) // Written by Nick Gammon // February 2011 /** * Send arbitrary number of bits at whatever clock rate (tested at 500 KHZ and 500 HZ). * This script will capture the SPI bytes, when a '\n' is recieved it will then output * the captured byte stream via the serial. */ #include char buf [100]; volatile byte pos; volati..

출처 : Analog Read Serial 배선 소스 /* AnalogReadSerial Reads an analog input on pin 0, prints the result to the serial monitor. Graphical representation is available using serial plotter (Tools > Serial Plotter menu) Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground. This example code is in the public domain. */ // the setup routine runs once when you press re..

출처 : Raspberry Pi SPI and I2C Tutorial Use the Adafruit PCA9685 with a Raspberry PI, in Java Raspberry PI to drive up to 16 servos JavaScript Robotics: Servo - PCA9685 I2C on Pi $ sudo raspi-config i2c device 활성화 $ sudo vi /etc/modules # /etc/modules: kernel modules to load at boot time. # # This file contains the names of kernel modules that should be loaded # at boot time, one per line. Lines ..

출처 : java - read temperature from DHT11, using pi4j - Stack Overflow pi4j 다운로드$ mkdir pi4j $ cd pi4j $ wget http://get.pi4j.com/download/pi4j-1.0.zip --2016-07-09 16:59:31-- http://get.pi4j.com/download/pi4j-1.0.zip Resolving get.pi4j.com (get.pi4j.com)... 54.231.114.185 Connecting to get.pi4j.com (get.pi4j.com)|54.231.114.185|:80... connected. HTTP request sent, awaiting response... 200 OK Leng..

출처 : rpi_HC-SR501/src/main/java/org/jboss/summit2015/hcsr501/MotionSensor.java pi4j 다운로드$ mkdir pi4j $ cd pi4j $ wget http://get.pi4j.com/download/pi4j-1.0.zip --2016-07-09 16:59:31-- http://get.pi4j.com/download/pi4j-1.0.zip Resolving get.pi4j.com (get.pi4j.com)... 54.231.114.185 Connecting to get.pi4j.com (get.pi4j.com)|54.231.114.185|:80... connected. HTTP request sent, awaiting response... 2..

출처 : Rednics Blog - 보안이 적용되지 않은 간단한 웹 어플리케이션 생성 WEB-INF\web.xml contextConfigLocation /WEB-INF/iot-datasource.xml /WEB-INF/iot-mybatis.xml /WEB-INF/iot-security.xml org.springframework.web.context.ContextLoaderListener springSecurityFilterChain org.springframework.web.filter.DelegatingFilterProxy springSecurityFilterChain /* WEB-INF\iot-security.xml Controllerpackage com.iot.controller; import j..