Questions tagged [power]

This tag is for questions regarding powering and/or power consumption of Arduino systems.

Filter by
Sorted by
Tagged with
0
votes
0answers
15 views

Want to decrease the number of power supplies from 4 to just one

Hello everyone I have 4 stepper motors 2 being nema 23 and 2 being nema 17 with nema 23 rated at 2.8 amps and nema 17 rated at 1 amp also the servos are tower pro mg995. I want to decrease the number ...
0
votes
1answer
30 views

Is it possible to use the same power source for the arduino and a high current

I've need to control some leds which draw 300mA with an arduino (actually an atmega) and after some searching I think the following is the circuit I need, but I'm not really sure if the power source ...
1
vote
0answers
18 views

L298N Motor Driver not working

I am using a L298N motor driver to connect a motor with NodeMCU. But i did a few tests since a few tests while learning how to control it now when i connect it the motor doesn't even work. Then i ...
1
vote
5answers
803 views

Running Arduino mega on 5V power supply

I'm wondering if I can run Arduino mega on 5V power supply, even though it's recommended for 6-12V. USB has only 5V right, will it be a problem? I expect to draw quite a lot of power from the 5V pin ...
2
votes
2answers
82 views

How to split 12V power suply to arduino and led matrix panel

I'm trying to build my Arduino project with Arduino mega and led matrix panel. I'm wondering what power supply should I buy, my first thought was to power the matrix panel from a 5v Arduino pin, but I ...
0
votes
1answer
23 views

How to work with WS2812B 16x16 matrix panel from aliexpress

I'm completely new to Arduino, and I want to build the project using an LED 16x16 matrix, but I don't know where to start. On the internet, I keep finding these custom matrix panels and they aren't ...
1
vote
0answers
31 views

ARDUINO NANO 33 BLE project

I am trying to measure power consumption in my ARDUINO NANO 33 BLE if it is awake mode or deep sleep ARDUINO NANO 33 BLE I will connect the temperature sensor to the Arduino and it will work every two ...
0
votes
0answers
30 views

issue with DVD drive stepper motor for 3d printer

Short version: 1: Is it possible to run just the stepper motors (pulled out of a DVD Drive) using either a 5v 2a mobile charger or a 9v battery plugged into the Ramps 1.6 power input? 2: what could be ...
1
vote
1answer
43 views

DS3218MG Servo - Not working with power supply

I'm trying to run my DS3218MG Servo Motor with an external power supply and my arduino nano. I'm using the following code: #include<Servo.h> Servo Myservo; int pos; void setup() { Myservo.attach(...
2
votes
2answers
79 views

How can I share one power supply between an arduino and servos?

I'm trying to power an arduino and a few modules (RF receiver, two servos, and a laser diode) through one power supply. I get jittery/unresponsive servos when hooked up in the following configuration: ...
1
vote
1answer
74 views

Current difference between pinMode(pin, INPUT_PULLUP) and digitalWrite(pin, HIGH)?

Does pin 5 or pin 6 use more power if they're just being used as a signal to an external device? pinMode(5, INPUT_PULLUP); pinMode(6, OUTPUT); digitalWrite(6, HIGH); . EDIT: Thanks to some links ...
-1
votes
1answer
73 views

Arduino Loop stops running as soon as power is turned on

I am using the MU Vision sensor which is supposed to drive a stepper motor. The MU Vision sensor code works. The moment I turn on the power for the stepper motor power supply, the code stops. I have ...
0
votes
0answers
48 views

Power down NRF24 to conserve battery life using MOSFET

I'm using a Pro-Micro to send messages using NRF24 module from a remote location, using batteries (later on, will be recharged using solar panel). To conserve power, Pro-Micro wakes up every 30 ...
0
votes
1answer
26 views

Can I run 3 motion sensors with a voltage regulator?

I want to power 3 hc-sr501 PIR motion sensors with a voltage regulator that can output 5v-1A. If I make such a system, will there be a noise?
2
votes
2answers
54 views

4 Pelteir Plate Water Bottle wired to Arduino Uno

Note - I plan to use the Arduino Starter kit to make this project. Hey everyone, I've had an idea for a project recently and I would like to get some insight on its plausibility. Is it possible to ...
0
votes
3answers
79 views

Short circuiting GND and power pins

I have created an arduino shield and i want to measure the voltage between the GND pin and 5V pins, to see if i see a voltage difference between the two points, in order to test if my pcb is fine. My ...
0
votes
2answers
75 views

Float to int conversion not working right in method using varargs

I am trying to convert a floating point number to an integer, but it seems like the conversion is not working properly. I am using the math library to calculate the power of 10 based on the number of ...
1
vote
1answer
68 views

Ok to Connect 2.9V Stepper to 3.3V pin?

So I have a stepper motor that's rated for 2.9V and 0.8A and I connected it to a L9110 Driver and I wanted to drive it with my arduino. But I don't know how to drive it safely without damaging the ...
1
vote
1answer
78 views

What is the best way to power the ESP32 from a battery?

I am making a temperature sensor that can go in a freezer and I am trying to figure out what the best method is. My research has taken me all over the place an I can't seem to find a straight answer. ...
1
vote
1answer
61 views

How to put Arduino Nano in low power sleep mode (<0.05mA)

I'm trying to put an Arduino Nano in low-power mode using this guide: Arduino Low Power - How To Run ATmega328P For a Year On Coin Cell Battery. The article suggests 3 things: use the Low-Power ...
0
votes
0answers
23 views

Arduino Doesn't Work With Just Battery and Vin Pin [duplicate]

I'm currently working on a drone project, and I have a bit of a problem. I am using a motor driver for my propellers, but the motor only runs continuously when connected to the computer. I have the ...
0
votes
0answers
60 views

Audio Amplifier won't work on Arduino Nano

I am using an Arduino Nano with these speakers and these audio amplifiers. I've tested these both on an Arduino Uno, and I've tested the Nano with other sketches and on that pin, and they both work. ...
0
votes
2answers
59 views

How to use a push button & transistor as a kickstarter for power supply?

My goal is to save energy, and I intend to do so by powering a chip with itself, and cut power whenever unnecessary. The best image I can have is of a startled monkey who jumps on the branch, screams ...
1
vote
0answers
78 views

DIY Arduino-powered 12V UPS suggestions | HELP NEEDED!

Firstly my wishes to whoever reading this piece of text, have a nice year and I hope that everyone is doing fine in this current pandemic and I think this is going to be a piece of the past very soon.....
1
vote
0answers
44 views

Power supply for servo motor [closed]

I try to built a snake robot. I used servo motors mg996r. Its Operating voltage is 4.8 V to 7.2 V and running current is 500 mA – 900mA. I used 4 servo motor. So I need a power supply that is 4*(900mA)...
1
vote
0answers
41 views

Define Arduino turn off state

I'm doing an Arduino-based project in which I want this feature: Whenever I cut the power or turn off the Arduino it should reset every pin, meaning that if I have a servo motor, and in some part of ...
0
votes
0answers
39 views

Extremely bad analog read on ESP32 while using 433MHz module

I'm currently trying to transmit data from one ESP32 to another with 433MHz modules. I also need to read some sensor readings from an Hall sensor. When the ESP32 that sends is not connected the values ...
-1
votes
2answers
52 views

Connect 12V 38A battery to SIM800C GSM Module

I have a gsm module that is rated for 12V and 1A. And I also have a drone Battery that is 12V and 38A. Would it hurt the gsm module If I connect it to this high power Battery? I heard It's voltage ...
1
vote
1answer
47 views

How the light brightness stays constant when we increase the frequency of stroboscope

Well I am trying to make a Stroboscop. I found this code at blow: and tried. It works normally. But if I increase the RPM so decrease the "strobeDelay" time, the brightness of the LEDs goes ...
0
votes
0answers
63 views

Putting Pro-Micro into deep sleep

As similar to ESP32/ESP8266 that can put asleep for long periods of time, I'm looking for a way to put a Pro-Micro to sleep for more than 8 seconds ( no external interrupt , or RTC ), as used in ...
0
votes
1answer
36 views

Arduino boards are not working with powerbanks!

I have used many Arduino boards with adapters and other power supplies. While connecting with a powerbank for portable projects I have noticed that the power goes off after a couple of seconds and ...
0
votes
0answers
61 views

Can a 0.2V voltage drop (i.e. from 5.0V to 4.8V) cause Arduino to stop working?

I want to log wind speed, using adafruit anemometers (https://www.adafruit.com/product/1733) at three different levels. For this, I have connected an Arduino UNO with an SD logger shield (Shield ...
0
votes
1answer
62 views

Datasheet of arduino power jack

Can we find out about the parts that the arduino uses? I want to make a shield, and i bought the same power jacks. And i thought that there would be two pins, one for power, one for GND. However, it ...
3
votes
1answer
38 views

How to power board plus module with one battery pack

I'm someone who's very new to robotics and the physical side of computers (software guy) so apologies if this is a stupid question. I'm purchasing an Arduino Nano 33 IoT that I'll be using in ...
0
votes
1answer
76 views

Are the GND pins of an Arduino identical to GND of its power supply?

What would happen if I connected a fan as shown in the following picture: +12V is supplied by the power supply that also powers the Arduino. GND, however, is connected to a GND pin of the Arduino ...
0
votes
1answer
44 views

Will plugging in a 12v power supply in the wrong polarity to a CNC SHIELD fry my circuit or damage my power supply?

I'm currently in the process of making a DIY pen plotter using an Arduino CNC Shield and GRBL Code. Right now I'm connecting the power supply to the shield. I got a standard 12v supply and I cut off ...
2
votes
1answer
54 views

How to separate a specific frequency signal from a summation of a few signals?

I want to calculate THD. SO how do I isolate the fundamental frequency from a signal with harmonics? I have a signal V which is a sum of V1, V2 and V3. V1=A1sin(w1t+phi1), V2=A2sin(w2t+phi2) and V3=...
0
votes
1answer
36 views

switching power sources

I have a small project I am working on that accepts power from either a 5v DC power source or a USB power source. Now, I know that both of the power sources are effectively 5v. I have measured the ...
2
votes
2answers
220 views

Connect 5V relay to ESP32 WROVER B board

I need to use a ESP32 WROVER B based MCU board with a standard (cheap) one-channel 5V relay (e.g. to switch on a mains-power appliance). Attempted removal of excess solder around the headers ...
0
votes
1answer
144 views

NodeMCU ESP8266 Ver 0.1 not powering on with VIN

I'm trying to power on my NodeMCU ESP8266 Ver 0.1 (thats what is written in board), via VIN and Ground with my phone charger. I'm 100% sure that the USB charger is working, providing 5V, and that the ...
0
votes
1answer
59 views

Uno doesn’t get enough power from 5v barrel connector. Why?

I’m using a 5v 20a power supply run through a barrel connector into an Arduino Uno to control an LED strip. When only the barrel is connected, the green light on the Uno comes on but the yellow light ...
0
votes
2answers
89 views

Dimming this ~30V led with PWM, what do I need?

I have a street lamp with a led and simple driver in it, I don't know the exact led voltage but the driver (image attached) says 27-36V DC output, MODEL: 50W. Is there a part I could place between ...
1
vote
1answer
44 views

Multiple external power sources and one Arduino

really noob question.. I am thinking of using a 12v power source and a 5v power source as an external power supply for my 5v relay (and some other stuff that I might add up to my project that will ...
0
votes
1answer
26 views

DIY CNC Machine Power Requirements

I want to make a CNC machine that uses 5 NEMA 17 rated for 2A and a RAMPS 1.4 to control it all. I have a power supply that can deliver 1.5A at 12V. Is it enough? I am worried that when all 5 motors ...
2
votes
1answer
80 views

Can I power the arduino UNO through the 5V pin while I use USB cable to collect data?

I understand that if the Arduino is powered by Jack or Vin when the USB cable is connected, the internal circuitry would inderdict the USB powering. But what if I power the arduino througn 5V pin ...
0
votes
1answer
54 views

Power supply for DIY Arduino CNC Router

I am making a CNC router from a dremel and 3-5 NEMA 17 steppers. I am really confused on how I can power all those motors. I am using a RAMPS 1.4 with Arduino Mega. I have a 2.4A USB power supply. Is ...
1
vote
0answers
39 views

Sim800L not working

I have been trying to set up the SIM800L. The LED is not blinking... I am using the LM2596 to convert from 5V to 4.3V (I did try with 3.7 <= Vout <=4.3 V) to power the module. With a 5V/2A power ...
2
votes
1answer
125 views

Can I use and external power supply and USB at the same time on my Arduino?

Can I use the Arduino with an External wall-wart and the USB at the same time? I need to power more LEDs, and the USB on my computer can only supply so much. But, I didn't want to destroy my ...
2
votes
0answers
37 views

Low power USB C power supply

I am searching for a tiny board to that accepts an usb-c cable and outputs 5v. To my understanding, for the few hundred milliamps two 5k1 resistors on the board would suffice. PD is not needed. I ...
2
votes
1answer
75 views

Set control register to low in ds3231 rtc

I have been using ds3231 rtc module for keep tracking and make alarm along with backup battery. when I used it for first time it worked fine. but now it doesn't keep track my time when the power lose ...

1
2 3 4 5
18