arduino-uno

问题 I would like to display my data as shown in the image below: Now my data is display in listview as shown. But the problem is I don't know what data I receiving. In other words, I won't know when I will receive temperature data and when I will receive RBPM and SPO2. #include <PinChangeInt.h> #include <PinChangeIntConfig.h> #include <eHealth.h> #include <eHealthDisplay.h> int cont = 0; void setup() { Serial.begin(9600); eHealth.initPulsioximeter(); //Attach the inttruptions for using the

问题 I need to use a sparkfun breakout board ADXL345 to detect when my motor system has stopped vibrating. I am also using a Sparkfun RedBoard (Arduino uno). Things I am doing to configure for this behavior: enable INACTIVITY event route INACTIVITY events to INT 1 (pin 2 on the RedBoard) raise INACTIVITY interrupt without delay set low threshold for INACTIVITY (rule out too high of a setting) INACTIVITY considers all axes clear interrupt data register Having done all these things I do not receive

问题 I need to use a sparkfun breakout board ADXL345 to detect when my motor system has stopped vibrating. I am also using a Sparkfun RedBoard (Arduino uno). Things I am doing to configure for this behavior: enable INACTIVITY event route INACTIVITY events to INT 1 (pin 2 on the RedBoard) raise INACTIVITY interrupt without delay set low threshold for INACTIVITY (rule out too high of a setting) INACTIVITY considers all axes clear interrupt data register Having done all these things I do not receive

问题 I receiving 3 data from Arduino and the data just keep coming in. My problem is the data doesn't update to the new received values. Here is the screenshot from the logcat: So D/BPM is the value in the textview 68 D/SPo2 is the value in the textview 99 D/temp is the value in textview 28.0 D/read: 71 is for BPM 99 is for SPo2 and 28.11 is for temp. But the textview values just stuck at 68 99 and 28.0. :( Here are my code for the Android part: public class Bluetooth_dataDisplay extends Activity

问题 I have received an arduino uno and some code for it as part of a project I am working on. I have never worked with them before so this is a completely new experience for me. I am using the Arduino application from their website and when I compile the code it works fine. When I upload however I get the error: avrdude: stk500_getsync(): not in sync: resp=0x41 I have looked at every single google result returned for this and I haven't gotten anywhere. I have tried uploading on 3 different

问题 In my project i need to read input data from water flow sensor. It works well when i wire water flow with pin 2 or 3 , but does not work work when i wire it to any other pins. It becomes a problem because i need to use GSM shield and you know pins 2,3 and 7 reserved for arduino and modem the code: #include <LiquidCrystal.h> // initialize the library with the numbers of the interface pins LiquidCrystal lcd(5, 6, 9, 10, 11, 12); volatile int TopsFan; //measuring the rising edges of the signal

问题 The Program is shown below: #include <SoftwareSerial.h> SoftwareSerial gprsSerial(7, 8); byte sensorInterrupt = 0; // 0 = digital pin 2 byte sensorPin = 2; // The hall-effect flow sensor outputs approximately 4.5 pulses per second per // litre/minute of flow. float calibrationFactor = 4.5; volatile byte pulseCount; float flowRate; unsigned int flowMilliLitres; unsigned long totalMilliLitres; unsigned long oldTime; void setup() { gprsSerial.begin(19200); Serial.begin(19200); pinMode(sensorPin,

问题 I have a problem with an activation/deactivation system for Arduino. I can get the code to activate or deactivate once I upload a fresh copy of the code, but once I activate it after upload and try to deactivate the security system, it only takes in 2 numbers and then prompts me to Wrong password. #include "Keypad.h" #include "LiquidCrystal.h" #include "Password.h" LiquidCrystal lcd(0,1,10,11,12,13); char newPasswordString; //hold the new password char newPassword[4]; //character string of

问题 I have similar question with the link below. How to store value in list (python) which is coming from arduino serially? For his output will look like [2.00] [2.00,2.64] [2.00,2.64,3.28] etc So I wonder how will be able to use [2.00,2.64,3.28] after the while true loop is done. I want to use that last piece because I want to extract specific index from that list and make use of it. I wish somebody know the answer could help. Greg 回答1: As it is specified in the answer related to your question:

问题 i am a beginner in arduino and that's my first IR project and yet i have a problem with compiling ... Arduino error : TKD2 was not declared in this scope About the code i used is the example IRrecvDemo . 回答1: I've just bought an arduino beginner pack (sunfounder) and I had the same issue. What I did is: Delete the library IrRemote: (C:\Program Files\Arduino\libraries\RobotIRremote) Download a good one. Can be found at https://codeload.github.com/z3t0/Arduino-IRremote/zip/master Install it