arduino

问题 #include "IRremote.h" int receiver = 11; IRrecv irReceiver(receiver); decode_results results; void setup() { // put your setup code here, to run once: pinMode(buttonPinA, INPUT_PULLUP); pinMode(buttonPinB, INPUT_PULLUP); pinMode(buttonPinC, INPUT_PULLUP); pinMode(buttonPinD, INPUT_PULLUP); irReceiver.enableIRIn(); } The error message is: Tone.cpp.o (symbol from plugin): In function `timer0_pin_port': (.text+0x0): multiple definition of `__vector_13' libraries\IRremote\IRremote.cpp.o (symbol

问题 I'm making a program that is searching all available COM ports for a text "ConnectAlready." Thanks to the help of people on stack overflow I was able to do a majority of it. I print the data i receive on the console, but instead of getting one string "ConnectAlready", i get something like: Conne ct alre ady Each one of those is a different string, and therefore i cannot check if the serial port is reading "ConnectAlready." private void serialPort_DataReceived(object sender,

问题 I'm making a program that is searching all available COM ports for a text "ConnectAlready." Thanks to the help of people on stack overflow I was able to do a majority of it. I print the data i receive on the console, but instead of getting one string "ConnectAlready", i get something like: Conne ct alre ady Each one of those is a different string, and therefore i cannot check if the serial port is reading "ConnectAlready." private void serialPort_DataReceived(object sender,

问题 I'm making a program that is searching all available COM ports for a text "ConnectAlready." Thanks to the help of people on stack overflow I was able to do a majority of it. I print the data i receive on the console, but instead of getting one string "ConnectAlready", i get something like: Conne ct alre ady Each one of those is a different string, and therefore i cannot check if the serial port is reading "ConnectAlready." private void serialPort_DataReceived(object sender,

问题 Hey guys so I'm trying to read a stream from a bluetooth device continuously streaming integers like this: -11 121 123 1234 -11 I have everything working with some code I found online, but to do some of the processing the numbers need to be ints as opposed to Strings, parseInt is taking up too much CPU, and I tried using a buffered stream with no avail. Here is the current method: void beginListenForData() { final Handler handler = new Handler(); final byte delimiter = 10; //This is the ASCII

问题 When the Arduino is powered up it has an int array stored in the flash, for example: int secretCode[maximumKnocks] = {50, 25, 25, 50, 100, 50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; When the program button is pressed, it then waits for the piezo to pick up a knock and this array then changes to, for example: int secretCode[maximumKnocks] = {25, 50, 25, 50, 100, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; (based on http://grathio.com/assets/secret_knock_detector.pde) How would I write

问题 I'm trying to use the "Yet Another PCInt Library" for enabling pin change interrupts on my Arduino mega 2560. In the Arduino IDE, the code compiles fine on windows, but fails on a mac. It gives an error code stating: nullptr not declared in this scope attachInterrupt(pin, (callback)func, nullptr, mode, trigger_now); ^ How can I get this to compile on OS X in the arduino IDE? 回答1: nullptr was introduced into the C++11 standard, and it does not exist in any earlier standards. My best guess is

问题 I'm trying to use the "Yet Another PCInt Library" for enabling pin change interrupts on my Arduino mega 2560. In the Arduino IDE, the code compiles fine on windows, but fails on a mac. It gives an error code stating: nullptr not declared in this scope attachInterrupt(pin, (callback)func, nullptr, mode, trigger_now); ^ How can I get this to compile on OS X in the arduino IDE? 回答1: nullptr was introduced into the C++11 standard, and it does not exist in any earlier standards. My best guess is

问题 I'm pretty new in the world of Raspberry and Arduino (especially together with Windows IoT). My plan is, to readout different sensors (temp and pressure) with the Arduino and then sending the values to my RP2 where I can use them on a GUI. So, it's not a problem to readout the sensors. I receive the correct values. Afterwards I'm sending them to the I²C bus (based on the requirements of the Wire.h lib). For my RP2 I found two similar projects and my code in C# is based on those. So far, so

问题 I want to show the current playing song in Spotify on a 16x2 LCD. I was thinking of connecting the LCD with my Arduino and then making a Python script that sends the current playing song of Spotify to the Arduino. To get to the point, I'm looking for a way to get Spotify's current playing song in Python. (I'm using Windows 8.) I found some ways like dbus, but they were either for Linux or for Mac. Thanks in advance! (And sorry for bad English grammar.) 回答1: I encountered the same issue, so I