The Arduino Uno is the most common of the Arduino boards. It is based on the ATmega328 microcontroller.
0
votes
1answer
14 views
Arduino Uno R3 not working with Cytron shield GPS 53
My project is to find latitude and longitude of certain places. I am using an Arduino Uno R3 with a Cytron GPS 53 shield to get the position of places but, my device cannot run because COM4 already in ...
-2
votes
1answer
26 views
How do I calculate speed from raw accelerometer values
I have a MPU6050 breakout and I'm trying to built a speedometer with it.
The problem is that I do not know how to change the raw value into something like kilometers per hour or miles per hour.
Can ...
0
votes
1answer
31 views
Can't get ESP8266 working
I have received an ESP8266 (ESP-07) Wi-Fi module from DealExtreme (Link: http://bit.ly/2dFJdxE).
It is a 4-pin module with the following pins: RX, TX, VCC and GND.
The module has a switch so you can ...
1
vote
0answers
29 views
How to sense toggle switch using OPTOCOUPLER
I am using an EL817 Photocoupler, here is the Datasheet. I have designed a circuit to sense the Switch using EL817 and it is connected to the GPIO pin of Arduino. How can I sense the switch? The ...
1
vote
0answers
38 views
How do I change the PWM frequency on an Arduino Uno [migrated]
I currently trying to change the PWM frequency from the the standard 490 Hz to something else, Literally something else.
I previously used a timer1 library available from the Arduino, but became ...
1
vote
2answers
42 views
Proper Attiny85 timer/delay
Im having problems with Attiny85 programming. I am making something similar like this project. But i added function that every day on some time it turns on output - something like alarm clock. The ...
-1
votes
1answer
36 views
Will 5V 2A current input to the power port kill my Arduino? [duplicate]
I want to power my Arduino with a mobile charger, the out put is 5V 2A, will it kill my Arduino? And what's the max input current as power source?
-2
votes
1answer
17 views
Fading RGB LED between 10 and 60 cm
What I want to achieve is that between 10 and 60 cm of my HCSR04 sensor the color fades from red to blue on my RGB LED in steps of 1 cm between 10 and 60 cm.
I have tried creating some own functions ...
1
vote
2answers
19 views
combination of arduino uno and mega?
I am new to Arduino. Can I combine Arduino UNO and MEGA in 1 project? Arduino UNO is for audio output and MEGA for LCD display. If I am wrong, is there any ideas how do combine both LCD display and ...
0
votes
4answers
56 views
Code for activating a led after 2 minutes and will blink after 30 seconds interval
Can anyone help me to build a code which will activate a LED after 2 minutes when the power supply is cut off and blink that LED after a time interval of 30 seconds.
I want to import the code on ...
0
votes
2answers
31 views
What sensor would work for soccer ball detection efficiently using Arduino?
I want to make a soccer goal counter using Arduino and some sensors. I built using an ultrasonic sensor, but it does not detect if the ball is moving too fast. Are there any other sensors I can use to ...
-1
votes
0answers
9 views
after getting my raw values from MPU6050 ,what to proceed next?
i got all the values for X,Y,Z . i'm making a hand gestures based robot ,but after taking the values what to do next with these values??
-3
votes
2answers
23 views
Arduino uno - Ethernet Shield enc28j60 hangs after some time
I am using Ethernet Shield enc28j60 for retrieve data from web server, but Ethernet Shield enc28j60 hangs after some time and it only works after restarting power supply (router usb port).
My sketch :...
1
vote
1answer
17 views
MPU6050 Measure distance traveled or position
How can I use MPU-6050 with an arduino to measure the distance the robot traveled from it's starting point or just it's current position on the map?
The Robot should be moving in a map same as a 2D ...
1
vote
1answer
27 views
How to correctly code a LED STRIP?
I recently bought a 5050 RGB 12V 3A LED strip and I set it all up with my Arduino and run this code (from adafruit website), everything is good:
Example Code
Once you have the strip wired up, it is ...
1
vote
1answer
14 views
How do I use two PulseIn() functions simultaneously in Arduino?
I want to connect multiple Ultrasonic sensors to my Arduino board. For that, I need multiple pulseIn() functions to work at the same time. How can I do that?
1
vote
0answers
8 views
BASCOM-AVR stk500_2_ReceiveMessage(): timeout: -1
Arduino Uno R3
Windows 10
Bascom AVR
The ON is alright.
The LED flickers now and then.
The RX and TX flickers when I press the program button on Bascom but then disappears almost immediately.
...
1
vote
1answer
29 views
Controlling Relay Using Serial Monitor
I tried to make a program that can control a 4 channel relay (with LEDs as indicators) with a serial monitor. First time I tried to program it using a char command to make it turn on only, it worked. ...
-3
votes
0answers
16 views
Bascom AVR “port not open”
I looked for tutorials already. I'm still a beginner. I'm using Arduino Uno R3 328. I changed the COM Port in Device Manager to COM1 and tried programming the chip but still it shows this same error:
...
1
vote
1answer
24 views
How does Arduino IDE for OSX work without drivers?
My Arduino IDE works right out of the box without me having to install any USB to UART drivers. I know the Atmega16U2 on the UNO is acting as UART bridge, but this means that OSX recognizes it on a ...
1
vote
2answers
21 views
Problem with Software Serial no response
I am using an Arduino UNO board with IDE 1.6.7.
I have tried to implement a tweaked version of the basic example (SoftwareSerial Example) from Software Serial library. The code is attached.
It ...
-3
votes
0answers
23 views
To control protools using arduino uno [on hold]
My aim is to create a MIDI controller.
The MIDI controller box will have 8 buttons(for an octave),volume control & play/pause button.
The above box is connected to arduino uno board.
The ...
1
vote
1answer
28 views
I already have a button on my Arduino board, but I don't know what pin number should I use in my code?
I'm attaching a picture of my board which has the push button I want to use, but I cannot because I don't know what pin number should I write in my code.
my code:
int switchPin = Button;
int ledPin =...
1
vote
0answers
16 views
Using Analog Comparator on Uno to Read Differential Voltage Signaling
I am trying to use the Arduino Uno to read an AVCLan bus on a Toyota vehicle. Logic 0 is when +/- drive are 120mV or more apart, and logic 1 is 20mV or less. See Toyota AVC-Lan description.
I ...
-4
votes
1answer
25 views
how can i make a specific object detected and move to the sensor? (like a magnet-attracted)
idea from existing one : key tracker
can i modify it base on ;
detect specific item / object (such as key, spec, remote, hp etc)
when the item / object is misplace , i just press button and the item/...
-1
votes
0answers
38 views
how do program the interrupt routine?
I am having some trouble programming my interrupt routine using this library that interfaces with the timer1 on my arduino uno.
I am having issues with calling a non-static member within a static ...
0
votes
0answers
32 views
Error when uploading the sketch
I encountered an error when uploading my sketch along with the error message below.
Arduino: 1.6.11 Hourly Build 2016/08/16 11:33 (Windows 7), Board:
"Arduino/Genuino Uno"
avrdude: can't open input ...
1
vote
2answers
61 views
How can i do something like multi threathing in arduino?
I am checking for ways to implement multi threathing in Arduino, I have also tried using the library TimerOne but it doesn't seem to work, what I'm trying to make is an Arduino application then, every ...
2
votes
0answers
16 views
Do I need an Arduino for BLE?
I have built a prototype that uses RedBear Lab's Blend micro board (http://redbearlab.com/blendmicro/). The board combines Arduino and a BLE chip (Nordic nRF8001). The application is fairly simple
...
-3
votes
1answer
15 views
Best way to make the receiver follow the transmitter. Should UWB be used or rf? [closed]
I want a trolley to follow the transmitter which is placed with the person. What should i use a rf or UWB 'DW1000' or something like that?
The wheels should be able to follow in the direction where ...
1
vote
0answers
15 views
Voltage on open circuit jumping on Arduino R3
I am working with a bunch of sensors and everything is fine so far, but I figured on analog PINS 4 & 5 the output voltage read is 0.09V higher than on 0-3... for my Sensors this is a crucial issue....
1
vote
2answers
48 views
Can I power two 5V with Arduino powered with 9V power adapter?
I have a setup where I have a 5V IR receiver and 5V relay board and Arduino Uno.
I am currently powering the Arduino from the PC USB and both the IR receiver and the relay board from the Arduino. ...
-1
votes
0answers
26 views
How to connect SIM900 to Arduino
I have a SIM900 Arduino shield like this one:
And I want to run this code:
#include <SoftwareSerial.h>
SoftwareSerial gprsSerial(7, 8);
void setup()
{
gprsSerial.begin(19200);
...
2
votes
1answer
37 views
Control Arduino through ethernet. How to contact from outside network and securely
I'm new to Arduino so please bear with me if my question is too simple or broad (I did try and research it) or guide me if it belongs elsewhere (networking forum?)
I would like to be able to control ...
3
votes
3answers
97 views
Ensuring specific frequency at specific time?
I, at the moment am trying to come up with a simple way where I can program an Arduino to provide a step signal with a given frequency, at a specific time.
The frequency has to be ramped up, and ...
-3
votes
0answers
14 views
Arduino Uno after using with Yun Shield?
Will my Uno still work after using it with the Yun shield? The board seems unresponsive to me pressing the reset button and I can't find its old serial port - any help? Cheers.
EDIT - Pin 13 is HIGH ...
1
vote
2answers
50 views
How to use millis()
I'm trying to have a keypad do two one of three things when a key is pressed:
If the 1 is pressed I want LED 1 to blink twice then stay on
If either the 2 or the 3 is pressed I want LED 2 to blink ...
0
votes
1answer
41 views
How to power two stacked motor shields with one 3S Lipo battery (11.1V)?
I have these 2 motor shields:
Adafruit Motor Shield V2 and
Seed Motor Shield V2.
They are stacked on top of an Arduino UNO.
My question is, how can I power 2 of those motor shields with one 3S Lipo ...
-1
votes
0answers
32 views
Arduino running two different programs
I have written a library to control a robot I have created. I have used this library with many different robots many different times and it has worked perfectly. Today I uploaded a program to the ...
0
votes
1answer
29 views
My computer dose not recognise my arduino Uno
I had never used Arduino before. When i tried to interface my new Arduino Uno board to my computer, the computer failed to recognize the board. Why isn't the board interfaced successfully? How should ...
1
vote
1answer
26 views
How do I see underlying code and definitions inside Arduino IDE on MacOS X El Capitan
I'm a newbie to Arduino so please excuse the easy question and guide me to the appropriate sources or forums. I just bought an Arduino Uno Starter Kit that comes with the "Arduino Projects Book" by ...
0
votes
1answer
18 views
Generating analog signals
is there a way to make the Arduino act as a voltage source, by generating sinusoidal, triangular and other kinds of signals? If so, can it be done using LabVIEW? (I've already managed reading analog ...
1
vote
1answer
20 views
Arduino or XBee unique identifier?
Is there anything built into the Arduino Uno or the XBee Pro 2 radio module that I can poll within my Arduino script to act as a unique identifier? Mac address or otherwise? If anyone has a code ...
1
vote
1answer
30 views
Code Optimisation [closed]
I have tried fading the RGB Led with different colour format and sequence.
Working of Code :-
When value of number is 1, the Red LED fades gradually and glow up with the delay interval of 10ms with ...
1
vote
0answers
31 views
Arduino code not starting at beginning after poweroff
I created a few Arduino-XBee temperature sensor nodes that send data to another XBee node.js server. I'm running into a few issues trying to write a function to initiate a handshake and receive an ...
1
vote
0answers
20 views
I2C between Yun Shield (Dragino) and UNO R3 problem
I am having problems with I2C communications between my Dragino Yun and an Arduino UNO R3.
I can have the Dragino request data (using Wire.onRequest on UNO) from the UNO and it works great, however, ...
1
vote
1answer
22 views
Accelerometer fix values
I use Arduino Uno with an Accelerometer ADXL345-gy-291 (the full name of the ship) i did hook it up like this
Note I'm using SPI Communication, that was the right one to use in my case.
when I ...
-3
votes
2answers
39 views
How to Set the Wifi Password at Runtime with ESP8266 Wifi Module and Arduino Uno?
Suppose I add an alphanumeric display (to display wifi password character) and an enter key (to enter a character) on the Arduino Uno with the ESP8266 wifi module.
Then is it possible to enter the ...
-1
votes
1answer
38 views
writing and uploading sketch as cpp file
I want to use only *.cpp files and no *.ino anymore. I read a lot of stuff about how to upload c++ instead of arduino sketches. But still I did not found the step by step guide how to do it.
Actually ...
0
votes
0answers
24 views
Generate the step signa for running a stepper motor
I am the moment trying to make a stepper motor run, aren't that sure what kind of signal i should provide the Step pin of my control board.
I read somewhere that a simple PWM would make it make it ...
