Questions tagged [reset]

Use this tag for discussing resetting the processor.

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1answer
2k views

Using 555 as an external Watchdog

I would like to use a 555 circuit as an external watchdog for my Arduino project. The project is a cellular tracker that goes to sleep for an hour, wakes up and does some measurements, uploads them ...
2
votes
3answers
4k views

Resetting an Arduino with a timer

I want to run an Arduino autonomously - but although I apply a watchdog sometimes the systems hangs and can only be restarted by physically interrupting the power-supply (or hitting reset). So I need ...
4
votes
7answers
34k views

Arduino Pro Micro clone not recognized, flickering RX LED

I have an Arduino Pro Micro clone that seems to be in some sort of reset loop. The RX LED is flickering very fast and very dim. The power LED also seems to flicker at the same frequency but has normal ...
10
votes
1answer
2k views

How to reset Arduino from software

As you know, the Arduino IDE resets the Arduino when the Serial Monitor is opened. I want also my program to do it. But I don't know how. I examined the source code of the Arduino IDE (Serial.java &...
1
vote
1answer
255 views

Micro not detected, can't reset

I just picked up a new Arduino Micro for a project, but the first time I tried to upload to it, things went terribly wrong. The USB cable was loose, so the power light kept blinking on and off. When I ...
-3
votes
1answer
50k views

How to Reset or Format the Arduino?

My Arduino got damaged by a short circuit so I tried my board with a simple code it gives me wrong results, so is there any way to reset or format it?
5
votes
4answers
14k views

Watchdog timer stuck in restart loop? (green led flashing)

I am trying to set up a way to reboot arduino on command. The code below should do that but it seems like my arduino just get's stuck in some sort of a loop where I cant upload or get any serial ...
21
votes
1answer
63k views

Reset an Arduino Uno in code

Is it possible to reset an Arduino (i.e., to reboot it) from code (i.e from the sketch itself)? I know that is possible with a special circuit but is there a chance to make it just with code? Below ...
5
votes
2answers
6k views

Arduino serial port reset in Serial monitor & Python

So am I using an Arduino with a shield to gain some voltage values for an ECG. I am then plotting that data in Python. However whenever I "observe" the serial port, be that through the Arduino serial ...
3
votes
1answer
607 views

Why Arduino Severino (S3V3) sometimes needs reseting when uploading a sketch?

I have an original Arduino UNO R3 that I bought and an Arduino Severino (S3V3) that I've built. I have no problems uploading sketches to the UNO, but sometimes, when uploading to the Severino board, ...

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