arduino trackball

The Arduino is really good,Already addicted.This is a wind tunnel stabilized pellet system.First, the component moduleArduino FrontArduino PIN WiringThe drive board, it's Freescale's little broken car.Power.Wind tunnelFan modelSecond, the Arduino codeIt's a code of words.#include intinputpin=4;//define ultrasonic signal receiver pin ECHO to D4 intoutputpin=5;//define ultrasonic signal transmitter pin T

in the Lite Windows system, thewindow System deleted some of the less commonly used driver information, causing the installation to appear: "The driver software for the device was found, but there was a problem with the installation and the system could not find the file specified"Specific solutions:1: Find C:\windows\inf\setupapi.dev.log This file contains information about the device driver installation, so he documented why the Arduino driver inst

Arduino connects to the phone using the HC05 Bluetooth moduleEverything is the best choice.First is the line connection, must not answer the wrong　　Arduino Code#include //Pin10 for Rx, HC05 txd//Pin11 is TX, HC05 rxd is connected.Softwareserial BT (Ten, One); CharVal;voidSetup () {Serial.begin (38400); Serial.println ("BT is ready!"); //HC-05 default, 38400Bt.begin (38400);}voidLoop () {if(Serial.available

Newly bought Arduino Development Board USB to serial port using the CH340 chip, on Mac OS X Yosemite after the normal installation of the driver, the Arduino IDE port did not find the corresponding device, using the following methods can be used after the USB to serial debugging and burning program.1. Installing the CH340 Drive (drive: http://www.wch.cn/download/CH341SER_MAC_ZIP.html)2. Open terminal to run

2018-05-0118:53:50First:Video again:http://v.youku.com/v_show/id_XMzU3NzAwNzMyNA==.html?spm=a2hzp.8244740.0.0#Coding=utf-8 fromPyfirmataImportArduino, UtilImport TimeImportCv2ImportNumPy as NPImportSerialser=Serial. Serial () ser.baudrate= 9600#set baud rateSer.port ='COM6' #Port is COM3Print(Ser) ser.open ()#Open the serial portPrint(Ser.is_open)#Verify that the serial port is open#board = Arduino (' COM3 ')"""def Duoji (): board.servo_config (0, 25

About ARDUINOPWM pin Frequency control output Board: Arduino M0 Pro Zero Use Tone (pin_led_13, 1000); /* Change Current PIN frequency */ Use Analogwrite (pin_led_13, 200);/* Output PWM waveform */ The principle is that the tone function changes the Prescaler value of the clock domain, causing the PWM output waveform frequency to change Minor adjustments can change the count upper value in the Analogwrite function prototype Under the X:\XXX\

Arduino function APIProgram StructureIn Arduino, the standard program entry main function is internally defined, and the user only needs to be concerned with the following two functions:void Setup ()void Loop ()The setup () function is used for initialization, and the loop () function is used for execution. Initialization functions are generally placed at the beginning of the program, to set some pin output

Recently, I intend to customize an Arduino board, change the Arduino's burn-write mechanism. Fortunately, bootloader are active code, say dry, before rewriting of course to try this source can compile, but to the bootloader directory is dazed .... Actually use is makefile, but as a program ape of course can't retreat ...1. Find bootloader Source codeBootloader source code are in the \arduino-1.6.9\hardware\

Target: BlackBerry mobile phone via Bluetooth serial read Arduino Bluetooth transmission of temperature and humidity information Hardware: Arduino motherboard + DHT11 temperature and humidity sensor + Bluetooth module, development tools C language Mobile: BlackBerry 9360 Mobile, OS 7.1, development tools Java Mobile: BlackBerry Alpha Mobile, OS 10.0.xxx, development tools BlackBerry NDK Communication: Mobil

adding sound or music to our project will always make it look cooler and sound more appealing. Especially if you're using the Arduino Development Board, and you have a lot of spare pins, you just need to add an SD card module and a normal speaker to easily add sound. In this article, I'll show you how easy it is to use your Arduino Development Board to play music and add sound. Thanks to the

prompt for system files not found when updating drivers manuallycause of the problem:we can open C:\Windows\inf\setupapi.dev to open the hardware installation log. Finding the last record, we will find the following error:sto:copying driver package files to ' c:\users\admini~1\appdata\local\temp\{7ff41925-97db-1c6a-d5b E-311dd1322b22} '.inf:opened inf: ' D:\arduino-1.0.2\drivers\arduino uno.inf ' ([strings]

The USB interface used by the Arduino to communicate with the computer is the USB interface used to download the program, and when Arduino communicates with other devices, it needs to use the "Serial" series of functions, so we have to know about it, here are a few common " Serial"function.1, Serial.begin ()-Sets the rate at which the serial data is transmitted per second (baud rate). When communicating wit

Through the first two articles, we have become familiar with the basic GPIO programming of Arduino and the serial communication between PC and Arduino. Next we're going to start learning all kinds of sensor operations while delving into Arduino programming. Before we start programming, we need to be familiar with the principles of SR04. Here is a digression: the

This article focuses on how the Arduino Development Board works from a hardware perspective. Most of the articles are about Arduino software. However, an in-depth understanding of its hardware design can help you take a solid step in the Arduino journey. Mastering the electronic design of the Arduino hardware will hel

Bo Master's first article, Hope Toto support. 1, the first is the wiring. VCC corresponds to Arduino Development Board 5V GND Connection Gnd TXD Connect TX Rxd receiving RX GPI00 Connect Gnd (This is uploaded when used, upload must be grounded, otherwise it will cause upload failure) Wiring is not very simple. Attach a picture 2. Then download the Esp8266 extension library. Open the IDE and click File--preferences, as shown in Fill this URL into t

Document directory Fading Hardware required Circuit Schematic Code Fading Demonstrates the use of the analogwrite () function in fading an led off and on. analogwrite uses pulse width modulation (PWM), turning a digital pin on and off very quickly, to create a fading effect. Hardware required Arduino Board Breadboard A LED A 220 ohm resistor Circuit ConnectAnode(The longer, positive leg) of your led to digital output pin 9 on your

Analogwrite (pin, value) First follow the connection number Circuit This time, we will use Arduino and a set of three-color lamps (red, yellow, and green) to Apply PWM. First, let's take a look at the Arduino board. There are six PWM interfaces in total, they are digital interfaces 3, 5, 6, 9, 10, and 11. For convenience, we use the continuous PWM interfaces 9, 10, and 11. During program writing, we wi

Phprpc + Ruby + Arduino = led turn-on (?) Well, I know this is a very boring sample. For phprpc and Arduino, Google Before reading this demo, please install the SerialPort mentioned in another article. With another gem KIT: phprpc In this example, I established a server through phprpc and called some methods through rpc to control the USB serial port.In this demo, we must establish the server and client.T

Normal 0 false false false MicrosoftInternetExplorer4 Author: Alajl Date:2011-4-15 Title:Arduino third lab-Automatic garbage removal-Accessory assembly Original article:Http://blog.csdn.net/alajl Preparations: 1. Arduino 328 Control Panel1 2. Four-wheel car 3.Dual DC Motor Drive 4.Sensor expansion BoardV5 5.Digital obstacle avoidance Sensor 6. Wire tracing Sensor 7. Power supply 8. Several small accessories

The role of version Serial.flush () prior to arduino1.0 is to empty the serial cache (dropping received incoming data). But after 1.0 the function of version Serial.flush () is adjusted in order to wait for the serial port data to be transmitted (Waits for the transmission of outgoing Serial data to complete.) (Referenced from http:// Arduino.cc/en/serial/flush).Because I am in the process of using Wifibee, if both want to use serial.print through the serial port to the WiFi module to send instr