Questions tagged [voltage]
Voltage is the difference in electric potential between two points of an electric circuit, measured in Volts (V). Voltage can be constant (DC) or varying (AC).
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What does VRx stand for in the KY-023? [closed]
The x and y axis pins on the KY-023 are labeled VRx and VRy, but I'm curious as to what they stand for, as I couldn't find any official statements about it. I assumed it was "Variable Resistor X/...
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Connected the 3.3v output and the 5v output together
I accidentally connected the 3.3V output and 5V output to the same connection. How bad is that and what issues could that cause?
I was busy with making my first project which uses a module which runs ...
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How to power 2 MG996R towerpro servo
I am a beginner and tried powering MG996R Tower Pro (180 deg Metal Gear) Servo from Arduino UNO and ended up hibernating the host PC.
I want to power 2 such motors (in parallel configuration) for lets ...
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6 V high-torque servo won't function with motor shield
I have only ever been able to get this servo to “somewhat” work when connected to the 5 V pin on the shield, the ground on the shield, and the signal line attached to whatever pin.
But 5 V is not ...
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Arduino read thermocouple Type K with ADS1115
I ordered a ADS1115 so I could measure temperature of a type K thermocouple, but I am not managing to get accurate readings. I had it working while having a normal A0 pin, but since the type K table ...
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When I use AnalogueWrite the voltage doesn't vary properly
I have a project where I want to control a pump, I use an Arduino, connected to a driver L298N and I will connect the pin 5, 6, 7 of the arduino to the pin IN2, IN1, ENA of the driver respectively and ...
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Unable to control motor with ESP32 using logic level shifter
I am using an ESP32 a TB6600 micro stepper, and a Nema 23 stepper motor, I am trying to control the motor with the esp32 but the TB6600 requires a 5v signal, I tried to fix this by using a logic level ...
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I'm planning on using 2 arduino boards for my project. Should I use 2 voltage regulators for project or use 1 for both?
For context, my first board would contain a motor circuit with an L298N motor driver while my second contains a controlled heating system that uses 2 relays with PTC heating elements, DHT11 sensor, ...
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how to change output PWM based on analog input
I want to give different PWM (D11) signals based on how much voltage is input (A7). How can I change PWM for different analog values?
#include <LiquidCrystal.h>
#include <ezButton.h&...
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channels on logic level shifter outputs high
so I have a logic level shifter which is TXS0108E ,I use it to shift the eps32 ouput volatge to 5v to be used with motor driver ,when I test it with multimeter , all the channels on the B side outputs ...
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This DC Motor shouldn't have any current while I'm not pressing the button (pin 7 is LOW) but it has. (When I'm pressing the button its as intended)
I can't seem to find the problem, and I believe its not about the code but I will give you the code nevertheless.
const int pinOFswitch = 4;
const int motor_3 = 7;
const int pushbtn = 5;
void ...
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MKR 1010 voltage confusion
I'm very confused about powering my MKR 1010 on a breadboard. It says use USB, but that is 5.5 V and it specifically says never go above 3.3 V, yet there is a 5 V pin. So what size external power ...
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How to produce multiple DC voltages for a single project with different DC requirements?
I have a project that has two 12-V .2 amp fans, one 30 3 amp LED COB panel, and a 5-V Arduino. I was wondering if there was a simple method to power all of these devices from a 120 V wall outlet.
As ...
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Powering up a 16x2 LCD display with only a 9V battery
I'm using an Arduino (Nano 33 IoT) board for a project and apparently this board can only supply with 3.3 volts when a 9V battery is connected to it through Vin and GND pins. In other words, I'm ...
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Potential difference across the same wire [closed]
This issue may be weird, and I'm not sure if this is because of my wiring, but it would seem that I do not have the same voltage (or approximately the same voltage) between the VCC(3.3V) and the VCC ...
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