All Questions
Tagged with arduino-nano arduino-mega
42 questions
-1
votes
1
answer
60
views
Arduino connect programatically two wires of external 3.3V device
What is a missing puzzle in here, relay, transistor?
I would like to pull pin of external device to the ground programatically using arduino's digital pin.
- 1
1
vote
0
answers
208
views
Communication between two hc 05 Bluetooth modules not working
I Have a problem with the connection between two hc 05 modules. The bluetooth modules are paired using AT commands. But when I run the code I cant get any data from the reciever. The bluetooth modules ...
1
vote
1
answer
307
views
Run encoder code simultaneously with other code in Arduino
volatile unsigned int temp, counter = 0;
int county=0;
void setup()
{
Serial.begin(9600);
pinMode(2, INPUT_PULLUP);
pinMode(3, INPUT_PULLUP);
attachInterrupt(0, ai0, RISING);
...
- 11
0
votes
1
answer
255
views
Balancing pendulum using PID
Dear all, referring to the video at here on how to make a PID balancing pendulum as shown in the picture and the author also provided the arduino code in the video description. May I ask whether this ...
- 101
2
votes
1
answer
2k
views
Nema 17 stepper motor speed problem
This code is quoted from here. May I know how to increase the speed of the NEMA 17 stepper motor further? I tried to increase the step speed to 2000rpm but it does not even work. It only works for ...
- 21
2
votes
1
answer
763
views
Programming ATMega4809 via Atmel-ICE with Hex File from Arduino IDE - why doesn't the code loop / work?
Background
I am programming a 40-pin ATMega4809 (datasheet) using ATMEL-ICE programmer.
I'm simply using the Atmel Studio to upload a HEX file to the chip.
I generate the HEX file using the Arduino ...
- 442
2
votes
4
answers
3k
views
How to implement Arduino NANO as a RS-232 to USB adapter (Or do I need a Arduino Mega?) For 3D printer comms
I have a PC upstairs running my 3D printing slicer program (Simplify 3D). In the basement, I have several USB-enable 3D printers. My PC upstairs has a USB-to-RS-232 serial adapter. The serial side of ...
- 21
1
vote
1
answer
1k
views
connect USB keyboard to Arduino using clk and data wires
Edit:
What I'm looking for is some kind of library which could be used with an arduino to read the HID protocol output from the Data+ and Data- cables of the USB.
==========
If I cut the cable of a ...
- 163
2
votes
2
answers
149
views
If condition for switch not working as expected
I am trying to write a simple program to control one LED with two switches.
If any of the switches is pressed, I want to turn the LED on.
My LED however is always ON even when none of the switches are ...
- 21
2
votes
2
answers
359
views
How many connections can Arduino I2C method create?
I was just learning about I2C between 2 Arduinos, one as sender and another as a receiver
So I have got curiosity to know how many Arduinos can be connected to I2C connection in serial?
I mean,
...
2
votes
1
answer
163
views
Arduino "Maximum Power point tracker" (MPPT) Problem
I need an IV curve for a solar panel. As far I know, solar-panel and Diode IV curve pretty much the same. Here, I am using diodes(6A10-1) as a solar-panel. Where each Diode voltage drops 0.6volt. I ...
0
votes
1
answer
189
views
If and while statements not working
The second and third while and if are not working but the first while and if do work. Am I doing something wrong?
#include <DFMiniMp3.h>
int sw1 = 3;
int sw2 = 4;
int sw3 = 5;
class Mp3Notify
...
- 33
1
vote
1
answer
2k
views
Can Arduino UNO permanently store a code?
I'm really new to Arduino and wanted to know if I can make Arduino a permanent controller?
and could you help me with a cheaper alternative?
I also wanted to know about "fuse", i read it ...
1
vote
1
answer
7k
views
What is the difference between delay() and delaymicroseconds() [closed]
Does delaymicroseconds() provide something more than the time accuracy
0
votes
1
answer
297
views
Arduino Nano Fried on Music Reactive Led Strip
I'm doing a project that involves an Arduino Nano, a sound detection microphone module and a RGB Led strip (individually adressable leds). I also bought an accumulator so I can connect everything ...
- 1