The Arduino Uno is the most common and one of the newest Arduino boards. It is based on the ATmega328 microcontroller.
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4 views
How to get the ENC28j60 and Atmega328 to use SNMP with Agentuino?
My setup is as follows:
An Arduino Uno or an Arduino Nano V3.x (Both have the Atmega328), the ENC28J60 and an DS18B20.
All bundled up with a Windows 7 x64 machine.
Now I'm trying to get the ENC28J60 ...
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0answers
22 views
Choosing rangefinder for obstacle-avoiding
I am looking to buy a range finder module for an obstacle avoidance robot.
Currently, two good options based on available libraries and compatibility with Arduino and rPI are HC-SR04 and parallax ...
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1answer
36 views
Arduino around the Xmega?
I came across a dev board around the Atmel Xmega controller. This an AVR like used on Arduino, but with a lot of extras.
I was surprised to see that the board is hardly more expensive than an ...
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0answers
23 views
Combining & averaging magnetometer values
I am trying to measure a users 'hand steadiness' in order to control a video game character in UNITY3D. I am using a MinIMU-9 Gyro/Accelerometer/Compass linked with Arduino. I can measure pitch/roll ...
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0answers
9 views
Has anyone here successfully used a GameDuino board with a NetDuino?
Has anyone here successfully used a GameDuino board with a NetDuino? I've read a few articles around the net that say while it should be pin compatible, there are some issues.
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0answers
8 views
Arduino support package in matlab PROBLEM
i have installed the Arduino support package in matlab , and i have all blocks that come with it in my simulink
the problem is that when i try to establish a serial communication i got smth like this ...
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2answers
36 views
estimating battery run time
I have a project which runs a continuous loop and listens for the push of a button to light an led and activate a servo motor on an Arduino Uno (R2). The arduino is powered by 4 AA batteries, and the ...
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2answers
52 views
Arduino Uno with crystal
Are there Arduino UNO R3s which use a crystal instead of a ceramic resonator?
(Frankly, I don't understand this cheapness: if you really want to save on component cost you can run both AVRs on the ...
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0answers
17 views
How does one use (specically the wiring) the OV7670 camera with the Arduino Uno?
If one could tell me where each of the pins on the back of the camera go to, that would be great. if someone added the code also that would be awesome.
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25 views
Eeprom write function does not seem to write in more than 100 locations
I am trying log my sensor data (1 byte each) on my Arduino Uno Eeprom. I have an ATmega328 on it, so it should allow me to write up to 1Kb on it, however I've tried the Eeprom write command and it ...
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2answers
57 views
project not working when switching to battery power
I have a project which involves a photocell, an led, a push button, and a small hobby servo (tower pro sg5010) - the project works as expected when the arduino is powered by usb, but when I switch ...
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2answers
24 views
Can I connect to wifi with 1 Ardino, 1 shield and 1 xbee
I basically want to create a growhouse sensor system. I have 1 Arduino UNO, 1 wireless sd shield and I have just ordered 1 series 2 XBee XB24.
Any info I find seems to revolve around having 2 ...
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1answer
32 views
modbus slave ID setting
I have small problem in setting device ID for Mosbus slave arduino. Here is simple example
In Modus library; device ID being configure hardcode while program. This code works for Me.
Modbus ...
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1answer
33 views
Arduino Ethernet and Uno R3 as a firewall
Is there a way to program the Ethernet Shield and Uno R3 to act as a firewall without using a huge chunk of the allowed bytes on the R3? I plan on using a DC adapter to plug the R3 into a wall, and ...
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2answers
57 views
How to control 19 RGB LED strips with one arduino?
I need to light up 19 RGB LED strips, which it seems would require 19*3=57 PWM outs and 57 transistors. The transistors aren't an issue, but of course the 57 PWM's is. Even if I hacked the digital ...
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0answers
19 views
Modbus slave ID assign arduino
I have below code for Modbus.I wanted to add 0-255 device to modbus. The library given are configured as hardwired.
Below is simple slave code where device ID assigned.
#include <ModbusRtu.h>
...
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1answer
36 views
Writing serial data, just once after read
I have developed a program and the idea is that when it receives serial data (any single character) it returns a single random number.
I have it working but it returns 3 x random numbers one after ...
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0answers
22 views
Randomized Byte for ethernet shield and R3 Uno Changes DNS
I used the ethernet web-client code from the arduino library but used 'random()' in place of the IP. It now shows DNS as different than what my subnet actually uses but the connection still works.
...
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2answers
51 views
6 + 1 motors connected to an arduino uno?
Is it possible to connect 6 dc motors and 2 dc servo motors to an Arduino Uno? I intend to control the Uno with a Raspberry pi connected through USB.
Assuming every motor to be bidirectional, how ...
-1
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1answer
56 views
I put a photo sensor, however my lights are on no matter what! [closed]
I'm still new to Arduino and I need some help.
I put a photo sensor so that if the sensor detects light, my LED lights stay off, but if no light is detected, my LEDs turn off depending on the ...
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0answers
8 views
XBEE coordinator WITH or WITHOUT Arduino?
I am building a wireless system that has got an Arduino with a XBEE as the 'end user' and I need to acquire data/control that Arduino from a PC graphical interface.
As far as I'm aware there are two ...
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3answers
94 views
Make a PC graphical interface for Arduino - Any easy software? [closed]
What's the best/easiest software to make a PC-Arduino interface? Ideally, I need to create a .exe that shows up a simple graphic interface, where the user can display data acquired from sensors ...
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1answer
34 views
Connecting a LSM9DS0 9DoF module to Arduino Uno
I got a bit confused by Sparkfun's hookup guide for this 9DoF breakout module.
It says the VDD-in on the breakout "should [get voltage] regulated between 2.4V and 3.6V", yet in their example they do ...
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0answers
26 views
Modbus reading signed value [closed]
I am new to Modbus protocol . I have simple example below given for arduino library.
Here data been shown unsigned format. The values equivalent to -3,-4,-1 are represented in umsigned format. I ...
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0answers
8 views
MPU6050_DMP6 Sketch hangs randomly
I have got a Problem with the MPU6050_DMP6 Code as it sometimes hangs when its running. It seems to stop randomly after some time and it makes no difference if i have the Arduino powered from USB, USB ...
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1answer
34 views
Plugged in shield off by one, now all analogues read high
I have a prototyping shield for an Arduino Uno. I accidentally plugged the shield into my arduino so that the pins were all "off by one". I didn't think this was possible, but it turns out that the ...
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0answers
22 views
Update Arduino Wifi Shield - current firmware newer than 1.0.2
I'm updateing my Arduino Wifi shield with firmware 1.0.2 found in Arduino IDE 1.0.6. Is there any newer firmware out there?
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1answer
61 views
How to generate Chirp Signal using Arduino
i would like to generate Chirp Signal (Frequency Sweep) using Arduino. i have searched a lot in internet but didn't find anything.
Basically, any parameters is also ok. But the concept is what i am ...
2
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2answers
77 views
Set Arduino digitalRead reference voltage
I wanted to know if the reference voltage for the digitalRead() function could be set to a particular voltage, either with an external reference or internally.
In the Arduino reference under the ...
1
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0answers
40 views
Cannot find Arduino under /dev Directory
I have the Arduino board connected to a USB port of my machine. But I cannot find it under /dev/ directory in my Ubuntu. Does anyone know how to deal with this issue? By the way, "lsusb"'s output ...
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3answers
54 views
Time based scheduling, NTP vs delay()
Without asking an open-ended question, i wish to find the best way (resourcefulness) to execute methods from an arduino based on time.
in a nutshell, every 10 minutes i want functionA() to be called ...
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2answers
45 views
Arduino UNO does not get recognized by PC(no USB connecting sound), also TX and RX not blinking, neither are lit
I am trying to build a robot, which needs motors to roll around. So I was trying to control two DC motors with H-Bridge that comes with Arduino StarterKit(H-bridge motor driver [L293D]). I used Sketch ...
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1answer
85 views
Why are pin 18 and 19 always HIGH?
I wired my switch just like in the default button program. I know it works because it works fine on other pins, just not pin 18 or 19. What am I doing wrong?
const int buttonPin = 18; // the ...
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1answer
36 views
Imbedded loops based on inputs
I'm working on a project with 4 inputs and 7 possible outputs on an Arduino Uno. Based on any combination of those inputs, I need to run a specific "loop" that will repeat until there is a change in ...
1
vote
1answer
25 views
Is it possible to use FrSky D8R-II Plus 8ch 2.4Ghz ACCST Receiver with an arduino Uno?
I'm in the process of buying a receiver and transmitter for my quad copter project. Would it be possible to use this receiver or a similar one to control the quad. I'm trying to read the signals using ...
4
votes
1answer
66 views
RTClib library dependency on Wire library
I downloaded the RTClib library from https://github.com/adafruit/RTClib. In every provided example, #include <Wire.h> is written immediately above #include "RTClib.h" at the top of the sketch. ...
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0answers
28 views
Unable to read the IC Card UID
I have a RFID module using NXP RC522 chipset.
I have no idea that is it correct the module using 27.120 mHz
And I have 4 IC card,
A) 0005302176, (Blue color tag, come with the RFID module)
B) ...
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2answers
60 views
Tile NeoPixel NeoMatrix 8x8
As a programmer I am new and lack some knowledge in electronic and I will appreciate the help.
I wish to connect 3 Adafruit NeoPixel NeoMatrix 8x8 - 64 RGB LED Pixel Matrix ...
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1answer
25 views
Adafruit CC3000 jumper pads
if I solder the jumper pads on the adafruit cc3000 for use with the Arduino Mega will it still work fine with the Uno?
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3answers
104 views
Can't program Arduino via Bluetooth (HC-06) with a Mac
I bought a HC-06 Module for my Arduino Uno the other day, yesterday it arrived and I'm having trouble using it with the Arduino IDE.
I set it up, connecting 5V, GND and RX/TX crossed. After a bit of ...
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2answers
78 views
Can I program AVR Microcontrollers using Arduino Development board with AVR Studio?
I know and I can program any AVR microcontroller with Arduino IDE and Arduino Uno board. Can I use Arduino board with AVR Studio? Or I have to buy an AVR Development board?
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0answers
17 views
Modbus communication
I am using Arduino modbus library for measuring string current using hall sensor.Here library downloaded .I have sensor data in floating value & the library store the value in integer format.
...
2
votes
2answers
105 views
Is it wise to use analog input pins to read digital buttons?
I am thinking about building a circuit that is literally going to take 11 of the 14 digital pins of an UNO to communicate with an SD card and an external EEPROM chip (EEPROM programmer).
Using 4 ...
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1answer
59 views
uBlox Neo 6M GPS module Not responding
I started recently working with a uBlox Neo 6M GPS module, (data sheet http://www.u-blox.com/images/downloads/Product_Docs/NEO-6_DataSheet_%28GPS.G6-HW-09005%29.pdf). I connected it to an Arduino Uno ...
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0answers
33 views
Sparkfun Red board and CC3000 shield not allowing multiple HTTP_GET requests.
I have a SparkFun Red board (Arduino Uno R3) with a SparkFun CC3000 shield attached. I am trying to post data to the "data.sparkfun.com" service in order to test a basic Wifi data logger. I am using ...
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1answer
72 views
W5100 module hookup help - Not a shield
I recently purchased a W5100 based ethernet shield for my arduino Uno, and looks like this. I had been following the guide here, and connected the pins accordingly - 5V to 5V, GND to GND, MOSI to 11, ...
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3answers
101 views
Arduino Uno + Wifi Shield + PS2 Keyboard + LCD Display
I'm new in the Arduino Community and I'm facing a problem when I try to use a PS2 Keyboard and an LCD Display (16x2) on an Arduino Uno with a Wifi shield.
I would like to write something with the ...
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1answer
38 views
Works on Uno but not on Yun
I found some code that works to transmit the required signal to an RX-2B RC receiver, the code works great from my Uno but when I tried to run it from my Yún nothing happens.
The code has definitely ...
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1answer
50 views
Proxy and Authentication in Arduino Uno
I am using the Ethernet Shield on top of the Arduino Uno. I want to use this setup to access webpages. But I am unable to access because the ethernet connection is present in a University which ...
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0answers
21 views
Serial outputting an error string of x and o characters (Adafruit Wave Shield, Arduino Uno, Charlie's RFID bear from Makezine)
I'm currently trying to implement an edited version of the CharlieBearV2.pde sketch from the Charlie's RFID Bear project on Makezine. Beforehand, I tested the RFID reader (I'm using an ID12 from ...
