arduino toolkit

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

Timerone Address:Https://code.google.com/archive/p/arduino-timerone/downloadsEx#include "TimerOne.h"void Setup (){Pinmode (, OUTPUT);Timer1.initialize (500000); Initialize Timer1, and set a second periodTIMER1.PWM (9, 512); Setup PWM on pin 9, 50% duty cycleTimer1.attachinterrupt (callback); Attaches callback () as a timer overflow interrupt}void Callback (){Digitalwrite (Digitalread (10) ^ 1);}void Loop (){Your program ...}*/

1. Windows key + R, input shutdown.exe/r/o/f/t 002. The computer will restart automatically, enter the screen, select Troubleshoot(Reprint please specify original: Http://www.harleygwak.com/wp-admin/post.php?post=187action=edit)3. Select Advanced Options4. Select Startup Settings5. Click Restart6. Press F7, or press the number 7 button directly8. The computer will automatically reboot into the system, the following can be installed under the Win7 system installation of the

Source of demand1. My son finished the year 6 years old, like to play fireworks, but the courage is small, so I am responsible for ignition, from the year before 26 to the beginning of eight, every night to give his son point firecrackers ah point firecrackers.2. The new year to open the door gun and opened the gun, Lunar New Year early morning also to help mom point firecrackers, said the whole string of small firecrackers also fried too fast, every time did not run a few steps on the open, bro

This is a old Arduino 3G module bought half years ago.Its wiki:Http://wiki.iteadstudio.com/ITEAD_3G_ShieldIts mall:Http://imall.itead.cc/itead-3g-shield.htmlDatasheet for Itead 3G Shield Http://pan.baidu.com/s/1ntCH4UHSchematic for Itead 3G Shield http://pan.baidu.com/s/1pJ5lRztDemo Code for Itead 3G Shield http://pan.baidu.com/s/1gdyaCYfIts back where you insert a SIM card:This board uses at commands to control itself.Key:at commandsWhat's AT command

Problem: arduino:1.6.3 (Windows 7), board: "Arduino Pro or Pro Mini, ATmega328 (5V, MHz)" Sketch uses 846 bytes (2) of program storage space. Maximum is 30,720 bytes. Global variables use 9 bytes, (0%) of dynamic memory, and 2,039 bytes of local variables are remaining. The maximum is 2,048 bytes. AVRDUDE:STK500_RECV (): Programmer is not responding Avrdude:stk500_getsync () Attempt 1 of 10:not in Sync:resp

::setqangle (float q_angle) {this-Gt Q_angle = Q_angle; };void Kalman::setqbias (float q_bias) {this->q_bias = Q_bias;}; void Kalman::setrmeasure (float r_measure) {this->r_measure = r_measure;}; Float Kalman::getqangle () {return this->q_angle;}; Float Kalman::getqbias () {return this->q_bias;}; Float Kalman::getrmeasure () {return this->r_measure;};Attach an Arduino sample program to watch your mpu6050 waveform situation ****************************

First Arduino default I²c address is 7-bit address, the manual is described, 7-bit address is 0x1e, read address is 0x3d = (7-bit address If you want to communicate with the hmc5883l, you need to hmc5883l power on the 5ms. Therefore, the general write configuration requires a delay of 5ms before communication. After connecting the device to test the sensor, identify the operation and identify register a, identify register B, identify register C is

Recently suddenly want to study STM32, see almost all of the tutorials are used in C-Series microcontroller program, so that has been studying C 艹 I write very not adapt to, today studied for a noon, successfully a single LED driver package into an Arduino-style class library, the use is very convenient, the method is as follows.Before you begin, it is recommended that you follow the methods described in this article in the STM32 template creation met

Arduino relatedArticleNow, I recently bought a Bluetooth chip (bluetooth module JY-MCU) online, which is also 37 yuan cheaper This chip uses the Bluetooth serial port service, which is encapsulated by Arduino. That is, the connection line reads data and writes data through the serial API,ProgramCodeIt is also very simple The only trouble is that you can write applications on your mobile phone. I

Arduino Port Code: int red=255; Create variables to store the data to be sent int green = 2; int blue = 3; void Setup () { serial.begin (9600);//define a data transfer rate of 9600 bits } void Loop () { serial.print (red); Serial.print (","); Serial.print (green); Serial.print (","); Serial.print (blue); Serial.print ("\ n"); Delay (+); } Above red, Green,blue is replaced with the value obtained by the color sensor in the actual app

/* sweep*/#include Original address: http://jt.satxt.com/arduino/arduino-d-j-sg90-d-w-q-s-x-z-d-f-x-k-z.htmlArduino Servo SG90 potentiometer for rotational direction control

AM2321 is a digital temperature and humidity sensor in Guangzhou ausone electronics production. Although it is a domestic brand, its precision can be comparable with foreign mainstream temperature and humidity sensing IC. Size: 11.3x7.8x4mm (L x W x H) Package: 0.05 pitch PTH Operating voltage: 2.6~5v Interface: i²c, maximum rate 100kbps, with special timing requirements Resolution: Temperature 0.1°c, relative humidity 0.1%rh Accuracy: Temperature error +/-0.3°c at r

The adk Board (a board) released by Google was designed with reference to the Arduino Board (M board). Let's see what's different. Adk Arduino mege2560 Power Supply Lt3480edd # PBFLP2985-33DBVR MC33269D-5.0LP2985-33DBVR MCU ATMEGA2560-16AU ATMEGA2560-16AU USB to serial port FT232RL-REEL Atmega8u2 USB Host Max3421eetj + None

Description Reads the value from the specified analog pin. the Arduino board contains a 6 channel (8 channels on the mini and nano, 16 on the mega), 10-bit analog to digital converter. this means that it will map input voltages between 0 and 5 volts into integer values between 0 and 1023. this yields a resolution between readings of: 5 V/1024 units or ,. 0049 Volts (4.9 mV) per unit. the input range and resolution can be changed using analogreference

SI7021 is a temperature and humidity sensor chip produced by Silicon Labs. Its main features: Humidity accuracy: Error typ. +/-2%RH, Max +/-3%rh (0~80%RH), factory corrected Temperature accuracy: Error typ. +/-0.3%°c, Max +/-0.4%°c ( -10°c~85°c), factory corrected Measuring range: Temperature range 0~100%rh, maximum temperature range -40°c~125°c Operating voltage: 1.9~3.6v Low power consumption: Low 150μa at work, 60nA at standby Interface: I²C, maximum rate support