All Questions
0
votes
0answers
3 views
How avoid TCP packet fragmentation?
I'm using an Arduino Uno with an Ethernet Shield and the arduino.cc Ethernet library for a custom TCP-based message-exchanging chat-like protocol. Specifically I'm using the Client class with its ...
0
votes
0answers
9 views
Simplifying my Arduino circut
I created a circuit to control the directions of two motors. I am trying to learn use use this to eventually if I get good enough make a programmable auto tripod. So far I am learning to use motors ...
0
votes
0answers
5 views
servo.h library and SeedRFID library conflict code
rfidreader works if i comment the myservo.attach(6);
#include <SeeedRFID.h> //rf
#include <Servo.h>
#define RFID_RX_PIN 2 //rf pin
#define RFID_TX_PIN 3 //rf pin
Servo myservo;//servo ...
-3
votes
0answers
7 views
Printing on lcd screen in different languages
I need to write to an arduino lcd screen in different languages like Japanese or Chinese.
Someone knows how?
1
vote
0answers
5 views
WiFiClient.connect() does fail all the time (ESP8266 Core for Arduino)
I have one ESP(1) opening an AP and running a server on it. The other ESP(2) is running a client on it and is connecting to the AP and after that trying to connect to the host server. The connection ...
0
votes
0answers
6 views
How do I run 6 motors and sensers for a Arduino mega?
I am building a robot and don't have much knowledge in electrical components. I was wondering if the arduino mega could handle 6 motors (the motors specifications are located bellow). I also was ...
1
vote
0answers
11 views
Arduino Mega 2560 from .org- which IDE works?
My personal choice is to purchase from the .cc (or adafruit) for new boards. YMMV. Craigslist locally of course has generic and .org boards now and then.
If I get a .org board on craigslist, will I ...
1
vote
3answers
19 views
Sending textual and nontextual data simultaneously across a serial port
I am currently using an Arduino Uno and creating an LCD simulator that works by sending LCD data through the hardware UART (serial interface). This LCD data is very short in length; in this case, it's ...
1
vote
0answers
23 views
Atmega328p programming with Arduino libraries
I'm trying to use the serial communication to work between a naked AVR Atmega328p and a computer (OS X and Linux Ubuntu).
I can program the atmega (using a pololu programmer), I make it blink a LED ...
3
votes
1answer
24 views
Motor running slowly when connected to digital pins, but fine with 5V pins
I am trying to connect a Dagu DG01D motor to my Arduino Uno. First I tried connecting the black wire to GND and the red wire to digital pin 7. My code:
void setup() {
pinMode(7, OUTPUT);
...
1
vote
1answer
29 views
Possibility of installing custom firmware from Arduino Uno R3?
I've been messing around with installing keyboard firmware onto my Arduino UNO R3 (I used this tutorial) and had an interesting idea: would it be possible to have this install custom firmware, ...
2
votes
1answer
25 views
ATtiny serial.print() crash with INTs
I'm trying to print some data to and from an ATtiny85 via serial, using the SoftwareSerial library. So far I've tried these setups with no results:
1/8MHz clock
baud rates from 9600 to 57600 (...
1
vote
3answers
48 views
Making three LED's link at given times
I have a breadboard connected to an Arduino Uno, 220k resistors connected to an led, of course it has a common ground and a pin connected to 5v. All pins are digital.
Now, I want led 1 to turn on for ...
1
vote
1answer
42 views
Serial Communication Not Receiving Entire String
I have an Arduino connected to a pico motor driver that is supposed to take a number of steps for a specific number of triggers that gets from a source (i.e. waveform generator). I've setup the code ...
1
vote
1answer
19 views
Sending IR via a wire
So i have taken apart this old remote i found, and removed the IR-LED and replaced it with wires.
I thought that i would just be able to put the wire that used to go to the positive side of the IR-...
1
vote
0answers
28 views
In-application programming for the Arduino Uno
I would like to know if it is possible to read from and write to the microcontroller's (Arduino Uno's ATmega328P) flash memory using a program or "bootloader" previously stored in the flash memory (or ...
2
votes
1answer
30 views
Water level Detection using Ultrasonic Sensor and arduino
I'm making a water level detector to control my motor which supplies water in water tank and for that I'm going to use ultrasonic sensor to be attached to tank lid. My question is whether the vapor ...
1
vote
1answer
18 views
ISO C++ forbids taking the address of an unqualified or parenthesized non-static member function to form a pointer to member function
This question comes on the heels of this question
In the last question I learned how to use and initializer list to solve my issue, but working with ros::Subscriber is requiring a different solution.
...
-1
votes
1answer
13 views
ESP01 PROBLEM: ip not showing up
Here is my progress on the ESP-01 ESP8266 module. I can't seem to go further, because the system doesn't have an IP and I tried all methods but still failed.
ððAT
OK
AT+CWMODE=1
OK
AT+CWMODE?
+...
0
votes
2answers
40 views
Making three led's blink at different times in Arduino
I have a breadboard connected to an Arduino Uno, 220k resistors connected to an led, of course it has a common ground and a pin connected to 5v. All pins are digital.
Now, I want led 1 to turn on ...
0
votes
1answer
19 views
Problems with Ultrasonic Sensor
I want to check my understanding on how to use digitalWrite for 5V and Grd and why this code isn't working.
This is for the Makeblock sensor
Consider the image here which says to plugin a wire to 5V,...
0
votes
0answers
15 views
ISR halts in DUE
I am using the following simple code to test the interrupt functionality of due:
void aMillion(){
for(int i = 0; i < 1000000; i++){
if(i % 1000 == 0){
Serial.print("m");
...
-1
votes
0answers
12 views
Unable to find CMSIS-DAP device
I am using a Genuino Zero with Arduino 1.6.11. When trying to upload the first simple sketch (LED Blink) I get the following message
Open On-Chip Debugger 0.9.0-gd4b7679 (2014-10-03-00:26)
Licensed ...
0
votes
1answer
24 views
Use an electromagnet for reading induction aswell
I have an electromagnet that I wish to use to pull a neodyne magnet closer.
I'm thinking of having the electromagnet sensing when the magnet is close, but when the magnet is running I'm pushing 12 ...
1
vote
0answers
16 views
Arduino Due works perfectly on Windows but doesn't on Linux (SAM-BA operation failed)
I've been working with the Arduino Due for a project, we have been setting up these Arduinos with an ARM Board that hosts a Linux System with Busybox that connects to the Arduino. Recently I got ...
-5
votes
0answers
28 views
Sone one is running a backround backup of all i do and i need help rooting my phone [on hold]
I noticed that i have some form of Java or some other script tgat is backing up all that i do, and then sending it to some where else. I thought that if i roited my divice i could dig deeper into my ...
1
vote
1answer
31 views
Is it possible to charge a battery using a water flow sensor?
Is it possible to use a water flow sensor to charge a battery? Since the water flow sensor measures water flow using pulses, could I charge a battery using these pulses(instead of using it to read ...
-3
votes
1answer
25 views
arduino uno + l298n motor driver+ 2 dc motors + 2 Ir sensors
I've been doing a line follower project for a week
Now I've completed connections but only one motor is working
MY doubt is: How to interface arduino uno and l298n
What i done was
I connected 2 and ...
2
votes
0answers
53 views
Wrong microcontroller found on Arduino Leonardo
When I try to upload a sketch on this brand new Arduino Leonardo, I get this error:
Arduino: 1.6.11 (Linux), Board: "Arduino Leonardo"
Sketch uses 4,134 bytes (14%) of program storage space. Maximum ...
0
votes
1answer
31 views
ESP8266 - How to know if incoming connection is from AP or station network?
I have an ESP8266 module connected with my Arduino configured as a server, with both AP and station modes (AT+CWMODE=3) activated, and I want to know if an incoming connection comes from the AP's ...
0
votes
0answers
9 views
Is this compatible: Arduino Zero + Arduino WIFI101 shield + Adafruit Music Maker shield
QUESTION:
Can an Arduino Zero with Wifi 101 shield, and with Music Maker shield all be connected together ?
PROJECT:
I want to have the Zero use the 101 to receiver an MP3 stream by WiFi, and send ...
0
votes
1answer
30 views
Is it possible to run Python embedded in Arduino?
I know how to program in C but I'm more productive in python, so, I would like to know if there is a way to run a python code into arduino.
-1
votes
0answers
15 views
I m trying to send the heartbeat value to ph through gsm..bt i m not getting msg in ph.can anyone correct my code
#include <SoftwareSerial.h>
SoftwareSerial mySerial(9, 10);
int in=8;
int count=0,i=0,k=0,rate=0,heart_val;
unsigned long time2,time1;
unsigned long time;
int sms_count=0;
void setup()
{
...
-1
votes
2answers
23 views
Delay In receiving data when SoftPWMBegin(); is used from SoftPWM.h library
when i use SoftPWMBegin() function in setup there is some delay while receiving data over bluetooth. And if i pressed o and 1 fastly (see in below given code), some time it receives data and sometime ...
0
votes
1answer
35 views
Applause reactivity
I'm making a pretty basic light circuit and I'd like to have it react to applause or laughter, but NOT during regular speech, amplified over speakers.
I'm wondering if anyone has already made a ...
0
votes
1answer
11 views
Advanced ADC setup on Due (SAM3X8E) to increase precision
I want to make some precise measurements with Arduino Due. Although I'm using very good external voltage reference (LTC6655) measured data is still jumping around, especially significant when I'm ...
-1
votes
0answers
11 views
Displaying live IMU data in a 3D model from bluetooth HID source [on hold]
I would like to be able to visualize the raw IMU data I'm reading. When I rotate my imu, I'd like to see it update on the visualization on my pc. I have a 9 axis imu(https://www.sparkfun.com/products/...
1
vote
0answers
21 views
RF24 - Split data in payloads at sender and then rebuild on receiving end
I'm trying to send some data using nRF24L01+ transceivers, but I need to use 8 byte payloads for reliability. The data I'm sending is much bigger than that, so I need to split it into 8 byte packets ...
1
vote
1answer
35 views
How to read Ultrasonic sensor value to use and drive servo motors
I would like to know how i can use my ultrasonic value in an if else statement, so i can use the value that the servo motors stop running and go in another direction when the ultrasonic sensor gets ...
1
vote
2answers
50 views
cheap ATtiny programmer on Debian
I've recently purchased a no-brand 1€ ATtiny programmer off eBay, and with the ridiculous price obviously came no documentation nor support from the seller.
At first I thought that using it with ...
2
votes
1answer
37 views
Crosspack instead of Arduino IDE, how to include Arduino.h
I quit using the Arduino IDE, instead I am now using Crosspack via the command line on my Mac.
It is working totally fine. I use "make" to compile it, "make flash" to upload it to the Arduino.
This ...
-3
votes
1answer
19 views
Connecting an optris to an arduino uno to send and receive hex strings
I have an optris CT IR sensor, data sheet below.
Is it possible to connect the Uno to the sensor, so I can send a hex string (01) and hopefully receive a hex string from the sensor (04 D3)?
https://...
0
votes
1answer
33 views
Communicate with ESP8266 RX/TX
I just managed to get a unofficial Arduino WiFi shield to work. But the ESP is flashed on its own now - providing only information to the USB->TTL converter and therefore the output goes straight to ...
1
vote
1answer
20 views
Stepper motor shield compatibilty question
I recently bought Adafruit's motor shield v2 only to find out it can only support upto 12v.
So I'm on the look out for another shield & found this one
Arduino Dual L6470 Stepper Motor Shield
I ...
0
votes
2answers
37 views
Need help modelling and coding a feedback scenario
Above illustration is the basic setup for the question. The scenario will be the following:
A potentiometer(providing 0 to 5V) is an analog input to A0. This
potentiometer voltage is converted ...
0
votes
0answers
13 views
433M modules w. soldered 34.6cm antenna, first test
I'm doing a first tx/rx on a pair of modules, and some hams have alluded that they 'autoadjust' - since I've soldered halfwave antennas onto the modules, what's the optimal range for first tests? And ...
0
votes
2answers
35 views
Accelerometer sample code
Just to illustrate my work here, I found a tutorial on how to code an accelerometer, I wanted to understand how does it work, literally get how it works, and not simply using the code without ...
-1
votes
0answers
35 views
Problem reading adc samples using analogRead() while RTC is connected
I have currently interfaced a RTC to arduino uno's SDA and SCL pins including a 5V and ground. Along with this, I also connect one end of the pot to that 5V and the other end to the ground while the ...
-3
votes
1answer
40 views
Arduino Parse data serially on VB [duplicate]
I am working with Arduino Uno, I have tracker application running on Arduino Uno board. I am sending data in comma separated value. Now I want to view data into Visual Basic. I have code as below. The ...
-4
votes
1answer
33 views
Arduino Serial data receive on visual basic [on hold]
I am trying to receive data from Arduino using visual basic. With below code i can able to recieve data over Serial communication. Problem i am facing parse the Serial data and put into textbox.
...
