The untagged tag has no usage guidance.
0
votes
3answers
5 views
VGAX library only allows 4 colors, library or hardware limitation?
Im working with VGA DSUB-15 output, however VGAX only allows for 4 colors. Im using an arduino nano that uses an 8-bit atmel chip, and ive seen many 8-bit computers of which have a bit more than 4 ...
1
vote
1answer
29 views
Using Arduino libraries with ARM based microcontroller
A week ago I started messing with LoRa. I got my STM32L151 IM880A kit.
Company that provided SX1272 LoRa modem chip (used in kit), provided some libraries, but lots of functionalities are still not ...
0
votes
1answer
17 views
Arduino Micro Cannot get Interrupt 6 work on PIN 7
After finding out about the situation with pin7 from this tutorial:
https://forum.sparkfun.com/viewtopic.php?f=32&t=35847
void setup(){
EICRB |= (1<<ISC60)|(0<<ISC61); // ...
1
vote
1answer
42 views
Arduino Read and write data from USB stick
Hello I have an Arduino Uno and I salvaged a USB port from an old computer. The USB port has 4 pins on it and it accepts USB sticks. I was wondering if it is possible to connect it to my Arduino so my ...
0
votes
0answers
21 views
Atmega8, 16 burn without programmer? [closed]
Is it possible that I can burn my code on atmega8, 16 development board not having programmer in any possible way. Please help
0
votes
0answers
30 views
Arduino pro mini power up problem
i start to make an sim card reader datalogger based on arduino pro mini and micro sd card.The problem is that when i'm powering the arduino from an external power suply,5v, everything works fine but ...
0
votes
0answers
6 views
Arduino + HMC5883L + rotate degree
I have an Arduino Mega and a HMC5883L sensor mounted in my robot. I want to use the compass to rotate my robot by degree passed as input.
First I calibrate my sensor and calculate the declination ...
1
vote
2answers
26 views
Moving ATMEGA to 3.3V
I currently have a barebone arduino built from just an Atmega 328P and a 16Mhz external crystal.
I planning to move this system down to 3-3.6V but I have read that on low voltage I have to use 8Mhz ...
0
votes
2answers
61 views
Main Idea of Gyro
[![enter image description here][3]][3]
Hi,I have a L3G4200D (GY-50 model) gyroscope.I have been trying to learn how gryo sensor works.Circuit diagram is attached.I want to ask some questions;
a) ...
0
votes
2answers
30 views
Why are the ICSP pins only on some shields [closed]
I recently bought a Raspberry Pi to Arduino adapter and have noticed while researching shields that only some of the shields seem to have the 6 pin block for ICSP on the top and bottom of the board.
...
-1
votes
1answer
18 views
How to connect an arduino with sim300 and a seperate gps module?
i am trying to connect an arduino with sim300 and gps module to upload data directly into a database on my localhost using gprs of the sim inserted.I am not able to interface the seperate gps and gsm ...
1
vote
1answer
31 views
Arduino - External Power not working properly
I am a newbie to Arduino and created my first project. The project is using a Sharp short range sensor and a 7 seg LED board (http://embedded-lab.com/blog/new-version-of-max7219-based-4-digit-serial-...
0
votes
0answers
13 views
Arduino Leonardo clone programming problem
I have made my own Arduino Leonardo clone using the Atmega32u4 as per attached schematic. Board operates at 5V, 16MHz. Power rails are clean. I burned the Arduino bootloader onto the device as per ...
0
votes
1answer
31 views
how can i get a maximum frequency for arduino due?
i have a project to get square ,sin and sawtooth from arduino due ,and i get them from dac ports.
but when i tried them on oscolliscope i found the output frequency only 500 hz and i want it in Mhz .
...
0
votes
1answer
40 views
The function AnalogWrite is outputting less voltage than digitalWrite on my board
I can't figure out why the output voltage of analogWrite(255) is less than the voltage of digitalWrite(255). My code and an image of my setup are below. Some other useful information is that I am ...
-1
votes
1answer
19 views
COM+ and COM- to RX and TX
I want to connect a Hokuyo scanning range finder to an ARDUINO MEGA,
the outputs are labeled like this:
COM+;
COM-;
Input;
Output;
DC12/24;
GND;
I want to read its serial output with Arduino, please ...
0
votes
2answers
75 views
How to connect phone's camera to an Arduino?
I would like to ask how to connect my phone's camera to an Arduino. Just like it is done in this this video. Does anyone familiar with this application they are using?
0
votes
0answers
35 views
Arduino driver not work, cannot verify digital signature see code 52
For the first time once I wanted to connect my Arduino 2560 board to the PC through USB cable then the situation is following:
Connection of USB cable between Arduino and PC
Driver does not ...
1
vote
0answers
21 views
3 square wave pulse by 120° phase shift and 3 inverted of each by Arduino
I want to make a three phase inverter (DC to AC) bridge type using Arduino. For that I want to generate three square wave each is 120° phase shifted and other three waves of main three waveforms ...
1
vote
0answers
10 views
Arduino Yun restarts or stalls during operation
I have an Arduino Yun that I need to connect to a machine to detect whether the machine is working or is stopped.
The signal used as a flag for such behaviour is basically the presence or absence of ...
1
vote
1answer
20 views
Control power with a Super Nintendo controller
Can someone please explain to me the steps I would need to take to control an LED with a super nintendo controller?
My buddy and I are building a couch powered by a few electric motors.
I thought it ...
1
vote
0answers
17 views
Atmega328 xbee and softaware serial libraries
I use an atmega328 with fdti cable wired at rx/tx and i want to connect a zigbee s2 at diferrent pins. I have tried to use SoftwareSerial library but i would like to use the xbee library too. Is ...
0
votes
1answer
17 views
What is the necessity of “Prototyping Shield” for an arduino UNO R3?
I just want to learn arduino and make some small projects.But in beginner starter kit there's a part named Prototyping Shield .Is it necessary or will it help me?
0
votes
2answers
46 views
Arduino micro lost connection after first programming
I have just programmed a new micro, loaded the basic blink code in it. After that neither my laptop, nor my desktop sees it anyway with the following usb error:
Fri Apr 1 14:32:01 2016] usb 1-2: ...
0
votes
0answers
120 views
MPU9255 IMU not fetching magnometer data
I'm using a 10 DOF IMU with an MPU9255 and a BMP180 to collect orientation data. When I run a sketch for arduino that I downloaded to test the IMU's capabilities, it collects the data from the ...
0
votes
2answers
140 views
Clone vs Counterfeit (Arduino)
On this page on Arduino's website, it states
"HUNDREDS OF COMPANIES AROUND THE WORLD ARE USING IT [Arduino Software] TO PROGRAM THEIR
DEVICES, INCLUDING COMPATIBLES, CLONES, AND EVEN ...
0
votes
1answer
33 views
Function of rxAlign parameter in the PCD_ReadRegister function in MFRC522 Library
I'm trying to port MFRC522 arduino libary(from github) to the ARM MCU's.
my problem is in PCD_ReadRegister function:
/**
* Reads a number of bytes from the specified register in the MFRC522 chip.
*...
0
votes
3answers
74 views
Arduino minimal power usage
I know there is a lot on this subject on the net but i cant seem to be able to join the dots together.
I am trying to make sensor system than can run for as long as possible if not indefinitely using ...
0
votes
1answer
53 views
Arduino controlled light dimmer software
I found this software:
/*
AC Voltage dimmer with Zero cross detection
Author: Charith Fernanado <a href="http://www.inmojo.com"> http://www.inmojo.com
</a>
Adapted by DIY_bloke
License:...
0
votes
1answer
64 views
Sinking 80 mA from a microcontroller without any driver circuit [closed]
Ok so I see Arduinos and Raspberry Pis and Intel Edison each goading you to buy additional modules so I was wondering if a micro controller sinks 20 mA on each pin if I make 4 pin ports low by ...
0
votes
2answers
49 views
Quick start on Arduino for experienced embedded programmer?
I'd like catch up the Arduino concepts (programming & IDE). There are excellent online tutorials available for Ardunio but all of them which I saw are made for those who didn't have embedded/...
-3
votes
1answer
47 views
5v regulators and arduino [closed]
If my arduino has a converter that I can plug a 9v battery into, with a regulator built into the board, do I need to wire a 5v regulator into a system with mult. servos or in something?
0
votes
1answer
38 views
Corrupted files generated by Arduino with SdFat library. How to avoid that?
I got:
https://www.arduino.cc/en/Main/ArduinoBoardDuemilanove
http://wiki.iteadstudio.com/Stackable_SD_Card_shield_V3.0 (set to 5V logic)
with this sketch using SPI/SdFat+OneWire/DallasTemperature+...
0
votes
5answers
102 views
How would I use Arduino microcontroller separately?
I'm learnig Arduino. I use Arduino Uno board with ATMEGA328-PU. I tried basic codes like LED blink, control of DC motor etc. Arduino board is used only when we program microcontroller, right? I mean, ...
0
votes
0answers
19 views
Arduino 1.6.5 (Pi) AVR/ARM Boards error [duplicate]
On Arduino 1.6.5 (Jessie/Pi)
After I update the AVR boards from 1.6.7 to 1.6.9 at Tools > Board > Boards Manager I get this error:
Arduino: 1.6.5 (Linux), Board: "Arduino/Genuino Uno"
/home/pi/....
0
votes
1answer
65 views
Could not read ID via SWD with Arduino
So I'm trying to read a bit of data via SWD. I've tried two chips as target - LPC1110 and STM32F030F4 (the first of them I used for other schematic, but I've reset the flash to make sure the pins are ...
3
votes
1answer
82 views
Arduino Uno with BLE disconnected detection [closed]
I am new to the development of Arduino code. I have an Arduino uno board and a BLE Bluetooth device. I was able to connect, send and receive messages my IPhone device. My arduino code open/close a ...
1
vote
2answers
97 views
What's wrong with my IR sensor
I bought some 'lucky dip' IR sensors from China, no idea what they are, but they appeared to get lost in the post so instead I bought some of these from a reputable place in the UK that come with a ...
0
votes
1answer
179 views
Trinket Pro 5V red light flashing when battery attached
I am using Trinket Pro 5V to run a simple i/o code. The input from the piezo vibration sensor is read by the Trinket and Translated into a servo position.
It works fine powered through a USB ...
1
vote
3answers
36 views
Arduino Uno data logger shield recording nonsense time
I'm using an Arduino Uno with the Adafruit Data Logger Shield powered by a Voltaic 5V 2A battery pack. When writing to an SD card, the time stamp never changes (always reports the same now.unixtime). ...
2
votes
1answer
83 views
Is my Arduino Uno broken? [duplicate]
I think I broke my Arduino Uno as I was playing with it. I connected an ultrasonic range finder to it and uploaded a sketch to it. It was working fine until I accidentally touched the ICSP headers for ...
-2
votes
1answer
36 views
SR04 ultrasonic senor with arduino
I've been messing about with the arduino uno with a SD card shield. I've gotten the SR04 to measure a distance on the serial monitor.
However, I want the code to measure a distance and ping back the ...
1
vote
1answer
25 views
RFduino communication capabilities
Is there any way to connect RFduino's via radio frequency? Or any capability to transmit information between RFduino's for distances up to 200 feet?
I would like to purchase a dev kit (for RF duino) ...
0
votes
2answers
44 views
Arduino read from Server periodically
I have an arduino attached with a RGB-Shield. I want to query my server for the RGB values periodically. I basically got it working using the Ethernet Shield but it takes too long to get the value (~...
1
vote
1answer
50 views
IR receiver transmitter High frequency
I build photo gate, to detect throwing ball.
It works fine when delay time in main loop for max 40 milliseconds.
Problems start when I delay every loop only for 20 milliseconds, now my LED which ...
0
votes
1answer
464 views
Arduino with 12 bit DAC (MCP4725) Not Working
I have an Arduino Mega AT2560 and need to have real DAC. I purchased the Sparkfun 12 bit DAC, however I don't think it is working properly.
I am using the Arduino wire library to communicate with the ...
0
votes
2answers
75 views
Can we connect 4 4-digit 7 segment LED Displays to a single Arduino board?
Can we connect 4 4-digit 7 segment LED Displays to a single Arduino board ? Is it possible without another component in between ?
2
votes
3answers
125 views
Arduino beginner - doubt about blinking LED code
I'm new to Arduino so this may be a really silly doubt but I'm not finding an explanation for it anywhere online. I first uploaded this code (to blink 5 LEDs) on my Arduino Uno :
void setup(){
...
0
votes
1answer
54 views
Sodaq Moja — Accessing SW2/SW3 user switches
I have a Sodaq Moja, from supporting the project on Kickstarter, and I didn't have much time until now to play with it. Unfortunately, the online documentation for the Moja has disappeared, and only ...
1
vote
2answers
1k views
What are the main differences between Arduino and mbed?
I have been working a lot with the Arduino platform over the last year. Arduino makes it very easy for beginners (in my opinion) to get started and has a large community and a lot of libraries for all ...
