Use this tag for discussing resetting the processor.

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10
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1answer
10k views

Reset an Arduino UNO by an command (software)

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 ...
8
votes
1answer
378 views

How to reset Arduino from software

As you know, Arduino IDE resets Arduino when Serial Monitor is opened.I want also my program to do it. But I don't know how. I examined the source code of Arduino IDE(Serial.java & ...
5
votes
2answers
2k 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 ...
2
votes
1answer
325 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, ...
2
votes
1answer
75 views

Why is the atmega chip reset three times during programming?

I'm trying to understand the auto reset process and why a capacitor hooked up between DTR and Reset works so I ran it through my logic analyzer and I'm seeing the chip reset three times during the ...
2
votes
4answers
276 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 ...
1
vote
3answers
348 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 ...
1
vote
2answers
3k 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 ...
1
vote
1answer
54 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 ...
0
votes
1answer
40 views

How does one design for the power on transient conditions?

Following on from the question Reset an Arduino UNO by an command (software) and the excellent answer provided by mpflaga, the comment addressing option (1) suggests that there are design ...
0
votes
1answer
69 views

How does the reset button work on the Arduino?

I'm confused about how and when to use the reset button on the Arduino. Do I simply press the button while it is on? Is it simply restarting the board or clearing the uploaded code as well? Currently ...
0
votes
1answer
231 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 ...
0
votes
1answer
12 views

How to reset Arduino Uno over BLE just like over USB?

I'm working on wireless upload to Arduino and i've succeed for Mega2560. But when trying to upload to Uno it does not wait for upload commands. I'm doing reset using GPIO and HM-10 BLE module wired ...
0
votes
1answer
46 views

can I create an on/off switch for my Arduino using the reset pin?

If i connect a switch to the reset pin, can I create an effective way of turning off the Arduino (overnight) without removing its power supply?
0
votes
0answers
9 views

RedBearLab Wifi Mini

I am trying to make a program using 'Energia' and RedBearLab Wifi Mini v1.0 and everytime I upload a program, even with the 'Blink' example, it resets my board and I need to manually click the RESET ...
0
votes
0answers
16 views

How to reset an Arduino with node-serial?

I was reading about using an Arduino with a Makefile. In the Makefile-Arduino project there is a reference to the Python serial library required to reset the board. Looking into the usage of PySerial ...
0
votes
0answers
60 views

Arduino ProMini green led flashing and unable to reset

so I'm using a promini running on solar power. For some reason, after sometime it gets stuck with the green led flashing and only by cutting power can I reset the promini. Even the reset button doesnt ...