Arduino Questions, Problems & Solutions : TransWikia.com ~ Page 12

what happens on Arduino power-on, and how long does it all take?

Here's what I think happens and how long it takes (FIXME means I don't know). I'd like to end up with solid max times for everything if possible.Power-on, input...

Asked on 11/30/2020 by Britton Kerin

1 answer

Max7219 7-segment display not working

when I connect VCC pin to the 5V and GND to the GND on the Arduino MEGA, then sometimes the display glows and sometimes it doesn't. It kinda looks like...

Asked on 11/29/2020 by Elayer213

0 answer

Why is Arduino Pro Mini not powering this LED?

First off, I'm very new to Arduinos and electronics in general, so feel free to explain like I'm 5. As a bit of background to this question, the project is...

Asked on 11/10/2020 by Don

1 answer

Unresolved reference to public function from library

I have three libraries that I've written and I'm trying to use. They're stored as followsDocuments├── Some/Path/To/Folder│ └── firmware.ino└── Arduino └── libraries ...

Asked on 11/06/2020 by omar_hussein

1 answer

Switched from 3ft to 10ft connection wires. My setup doesnt run correctly now. Timing issues?

Running a DC motor(6.5A max input), motor driver (MD10C 7Amp peak output), and Arduino Mega. I am stabilizing an object with an accelerometer as my sensor. I switched to longer...

Asked on 10/28/2020 by Thunder Dornhofer

2 answer

SG 90 servos randomly spinning

I started one project where i need 4 servos to control 4 grabbers jaws. i use STM32F103C8T6 with arduino IDE for programming it. The motor TZT Micro Servo 9g SG...

Asked on 10/25/2020

0 answer

void loop() stops running after an hour or so

So I have a program that measures temperature and humidity over time. Here isthe code I use:#include <SD.h>#include <SPI.h>#include <DHT.h>#include <Wire.h> #include "RTClib.h"#define DHTPIN 2 #define DHTTYPE 22const int...

Asked on 10/22/2020 by imRobert7

1 answer

I am facing a problem of firing multiple interrupts on nodemcu 1.0 on single rising edge pulse.what is problem and what are the solutions?

I am working on a project which involves counting the drops falling in a drip chamber of a IV fluid gravity based therapy bottle(saline bottle).I am using IR trans-receiver at...

Asked on 10/20/2020 by CHETAN NIRADWAR

1 answer

Multiple sensors I2C stop working suddenly

I am using multiple temperature sensors using I2C. Some of the sensors are connected via TCA9548 multiplexer. When I run the sketch it runs fine for a few minutes but...

Asked on 10/06/2020 by Zaffresky

0 answer

Is it possible to exit a loop on the change of an input state?

I would like to exit a particular loop if the state of an input changes from LOW to HIGH. This is the current loop:void brakeFade() {pixels.clear();pixels.setBrightness(255);pixels.fill(16711680, 0, 0);for(int i=255;...

Asked on 09/15/2020 by JabawokJayUK

1 answer

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