arduino fade

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

() { //forward forward digitalwrite (Input1,high);//Give High Level digitalwrite (input2,low); Give low Level digitalwrite (Input3,high);//Give High Level digitalwrite (input4,low); Give low -level delay (+) ; Delay 1 seconds//stop stop digitalwrite (Input1,low); Digitalwrite (input2,low); Digitalwrite (Input3,low); Digitalwrite (input4,low); Delay (+); Delay 0.5 seconds //back backward turn digitalwrite (input1,low); Digitalwrite (Input2,high); Digitalwrite (input3,low);

thisexampleFunctions can also handle negative numbers, such asy = map (x, 1, 50, 50,-100);is also valid and works well.Also effective and correctThe map () function uses integer math so would not be generatefractions when the math might indicate that it should does so. Fractional remainders is truncated, and is not rounded oraveraged.The map () function uses integral types, so no fractions are generated, and fractions are truncated, not full or average (?). ）Parameters parametersValue:the numbe

; //after a frame time delay, go to the next frame if(Millis ()-Lasttick >=framedelayms) {Lasttick=Millis (); ++frame; if(Frame >=frame_num) FRAME=0; } showarrpic (Man[frame]);}//display the picture represented by the arrayvoidShowarrpic (Const bytearr[]) { for(unsignedChari =0; i i) {digitalwrite (Latchpin, low); Shiftout (Datapin, Clockpin, Lsbfirst, (byte) arr[i]); Shiftout (Datapin, Clockpin, Lsbfirst, (byte) row[i]); Digitalwrite (Latchpin, high); }}No painting, this is all manual

registers is 2+1=3writespi_cs1180 (0x52);writespi_cs1180 (0x06); //Gain 64writespi_cs1180 (0x01); //normal use, configuration 01writespi_cs1180 (0x24); //BipolarDELAY5MS ();Delay (5);while (Drdy);while (Drdy);while (Digitalread (Drdy) ==high);while (Digitalread (Drdy) ==high);Readspi_cs1180 (); //empty read once, do discard processing, because the first reading is not correctDELAY5MS ();Delay (5);}Read AD valuevoid getad_cs1180 (){unsigned char ad[3];while (Drdy);while (Digitalread (Drdy) =

OverviewDemonstrates the control of a unipolar stepper motor. Without a ready-made H-bridge module, the bipolar stepper motor does not experiment.There is no use of the stepper library, rough primitive drive with IO, more understanding of stepper motor drive.Example program full-step driver----------------------------------------------------------------------------//Unipolarsteppertest_ fullstep.ino////Created 2015-06-27//by Seesea Half-Step Drive ------------------------------------------------

(F, low); digitalwrite (G, high ); delay( 300); digitalwrite (A, high); digitalwrite (B, high); digitalwrite (C, high); digitalwrite (D, high); digitalwrite (E, high ); digitalwrite (F, High); delay (300); // fully bright digitalwrite (A, high); digitalwrite (B, high); digitalwrite (C, high); digitalwrite (D, high); digitalwrite (E, high); digitalwrite (F, High); digitalwrite (G, high); digitalwrite (H, high); digitalwrite (D1, low ); digitalwrite (D2, low); digitalwrite (D3, low); digitalwrite

The entire tutorial makes an HTTP client for uploading Yeelink data points.1 Get Account http://www.cnblogs.com/imfanqi/p/4419915.html2 Code Tutorial http://www.windworkshop.cn/?p=1217#include 　　Arduino IDE for ESP8266 Tutorial (iii) HTTP client

(Exception e) {recvmessageclient = "Receive exception:" + e.getmessage () + "\ n";//message Wrap msg = new messages (); Msg.what = 0; Mhandler.sendmessage (msg); }} Handler Mhandler = new Handler () {public void Handlemessage (message msg) {super.handlemessage (msg); if (Msg.what = = 0) {Toast.maketext (Getactivity (), Recvmessageclient,toast.length_short). Show ();//refresh message mechanism} else if ( Msg.what = = 1) {try {String result = recvmessageclient; Toast.maketext (Getactivity (), R

Analogread (), and the detected voltage (0-5V) is mapped to a digital (0-1023) by a number-to- analog conversion technology (ADC) . If the output of the piezoelectric element exceeds a certain limit value (indicating that the vibration has reached a certain strength) your board will be output through the serial port "detected vibration." "This string to the computer. You need to open the serial monitor to see the effect. complete the hardware device required for this example An

Bh1750fvi is a digital ambient optical sensor IC produced by Rohm semiconductor in Japan. Its main features include: I2C digital interface, supporting a maximum rate of 400 kHz Illuminance) Measurement Range: 1 ~ 65535 Lux, minimum resolution Power down Shielding illumination variation interference caused by 50/60Hz Mains Frequency Two I2C addresses are supported and selected through the ADDR pin. Small measurement error (maximum precision error +-20%) Circuit connection Because the modu

); Kinect = new Simpleopenni (this); Kinect.enabledepth ();}Fourth step: Under 3D rendering, draw the point cloud and the frustum (that is, the 3D area visible on the screen. The Kinect frustum means the area that Kinect can see in space. ）void Draw () { kinect.update (); Background (0); Myorbit.pushorbit (this); Drawpointcloud (); Kinect.drawcamfrustum (); Myorbit.poporbit (this);}Fifth step: Finish plot point cloud functionvoid Drawpointcloud () { int[] Depthmap =

Summarize the experience of wireless module debugging. There are already people on the Arduino who have made the library of this module, but according to the manual written also has a certain reference significance.Wireless module is one of the modules that I think is more difficult to debug, because it is a module of mutual interaction, communication failure has two reasons, can not be found from a single code. The code is written, and all sorts of i