Skip to main content
Arduino

Questions tagged [hardware]

Ask Question

The physical circuitry and other components of a machine or device. This is distinct from the program code running on a device, which may be called software or firmware.

256 questions
Newest Active Bountied Unanswered
Filter by
Sorted by
Tagged with
-2 votes
0 answers
37 views

I am about to conduct my thesis study entitled "Design and Development of an Arduino-Based Automated Milled Rice Counter and Classifier" in which we are about to count and classify these ...
Gerald Peñaflor's user avatar
  • 1
0 votes
1 answer
152 views

I have been told to reinstall my Arduino IDE Ver: 1.8.12 to correct some corruption with my current installation. loading hardware from C:\Users\Paul\AppData\Local\Arduino15\packages: loading package ...
Paul Wilkie's user avatar
  • 21
0 votes
1 answer
75 views

I am looking to minimize the size and assembly complexity of my arduino projects. Is there any easy way to integrate something like an esp8266 onto my own pcb. I don't want to have to solder it on. In ...
LMJ's user avatar
  • 29
1 vote
0 answers
61 views

Please let me know if this post has the wrong tags, I will make sure to change it. My goal is to get the highest sampling rate possible from the Adafruit LSM6DSOX (6667Hz) using the Arduino MKR WIFI ...
infinite_yeet's user avatar
  • 11
1 vote
0 answers
242 views

I have this exact LCD shield: http://www.lcdwiki.com/2.8inch_Arduino_Display SKU: MAR2808 Driver IC: ILI9341 It works on an Arduino Mega 2560 using the old libraries the manufacturer (I assume) ...
Daniel's user avatar
  • 11
1 vote
1 answer
1k views

I understand that the Arduino is generally not fast or powerful enough to generate a suitable VGA/HDMI signal with higher resolution. However, I've noticed that there are inexpensive PC graphics cards ...
gilhad's user avatar
  • 1,466
0 votes
1 answer
211 views

Having the skill to be stupid has managed to fry not one but 2 Arduino nano boards in the same place (I think it is because this part that smoke came out from of has a lump on it that was not there ...
Iliketurtles's user avatar
  • 91
2 votes
1 answer
113 views

I am building arcade game with 10 player buttons (5 for each player) and one start button. All buttons have build in LED inside. Player buttons has LED for 12V and start button has led for 5V. I am ...
andz's user avatar
  • 123
-1 votes
1 answer
64 views

I use a lot Arduino Uno, but in this case, I have some BQ ZUM BT-328 boards, which are based on Arduino BT. The problem with some of BQ ZUM BT-328 boards is that the ultrasonic sensor (HC-SR04) is not ...
CGG's user avatar
  • 99
1 vote
1 answer
539 views

I am trying to do a loopback test using an Arduino Mega. What I am looking to do is send a byte over TX and receive said byte back at RX and verify that the byte is unchanged. More or less I just have ...
mnlipps's user avatar
  • 11
2 votes
1 answer
346 views

I have two UNO boards from a few years ago. They look the same as far as chip placement goes. I can plug both in and get flashing lights on them, and when I hit the reset (2x the on-off) button, they ...
iateadonut's user avatar
  • 131
0 votes
0 answers
61 views

What is the purpose of C2 on this schematic below? How does it work when the microcontroller is being programmed?
RGB Engineer's user avatar
  • 111
1 vote
0 answers
163 views

I have recently switched to an ArduinoMega2560 (authentic) from the Arduino Uno and have been having a bit of trouble with uploading sketches after the reset button has been pressed a few times. This ...
lonegrizzly's user avatar
  • 11
1 vote
2 answers
236 views

I have a issue with my Arduino Uno r3. I'm not sure why is that happening but I have a 5 V, 18 A power supply to power my LEDs. I connected 5 V from the Arduino to 5 V from the external power supply ...
KapitanKrzak's user avatar
  • 11
0 votes
2 answers
3k views

My arduino cannot connect to any port of my computer. So far i tried the following, without any luck: Using another arduino to check the usb, and it worked. So no problem with usb cable. Resetting ...
MIKE PAPADAKIS's user avatar
  • 21
0 votes
1 answer
2k views

I want to strobe 3 LEDs (at independent frequencies and duty cycles) via mosfets with a duty cycle of 0.05%-1% at a frequency range of 24-100 hz. I would like to hold 1% or better accuracy for both ...
Robb Godshaw's user avatar
  • 86
1 vote
1 answer
189 views

Problem If the loop runs only one simulated pin and uses a filter, it will output normally (analog 1600~2200, filter 0~500), but creating an array to store multiple filtered simulated pin values will ...
C.SH.K's user avatar
  • 45
-1 votes
1 answer
42 views

I am wanting to make a simple circuit that takes input from a movement sensor and plays a sound response. To do this I think an ESP32 microcontroler would be optimal? But how does one go about ...
Lamma's user avatar
  • 101
0 votes
1 answer
76 views

I am not that experienced with electronics, so this might be a silly question. But I dont know. Assume that I have connected some electronic circuit (transistors, leds, anything else) to the Arduino ...
Lemonbonbon's user avatar
  • 113
2 votes
0 answers
3k views

I have a project to find the pulse oximetry rate. I used MAX30102 and ESP8266 as shown in the first picture. Wiring GND ------> GND VIN ------> 3.3V SDA ------> D2 SCL ------> D1 Code I ...
Rahma ahmed's user avatar
  • 21
1 vote
1 answer
136 views

So I bought ATtiny85 recently, when I plug it to my PC it make sound like mouse has been plugin, but then it make sound like the device has been removed. It happen again and again until I remove the ...
Ferdinandus Ivan's user avatar
  • 11
2 votes
2 answers
325 views

On many tutorials I have looked at, they say that you should power your Arduino with a 5 - 12V external power supply, but on the Arduino, there is a voltage regulator. Is there anything wrong with ...
Nathan Jiang's user avatar
  • 55
1 vote
0 answers
36 views

The datasheet says the I2C bus limits itself to only two MPU-9250 sensors. How can I control multiple (>2) MPU-9250 through a single Arduino Uno? Is it possible to add another bus? Please, help.
Juan's user avatar
  • 11
1 vote
0 answers
104 views

I have a sketch running on a number of ESP12F modules (AiThinker). They can work for months on end, can be power cycled, can be moved around, etc. It is a complex sketch with multiple parts and is ...
Pinja's user avatar
  • 21
-1 votes
1 answer
138 views

When I interface LM35 temperature sensor and MQ-2 gas sensor with Arduino - my LM35 sensor gave incorrect values. From research I've found out that MQ-2 gas sensor dragging the AREF voltage down and ...
mugdho nahian's user avatar
  • 1
1 vote
1 answer
623 views

Do you have to build the circuit on an external board every time you decide there is a need for a pull-up or pull-down circuit? If not, then what is the alternative and how can you use it?
Ibraheem Mohammed Saleh's user avatar
  • 31
1 vote
3 answers
146 views

When a button is pressed, the Arduino might be busy with something (like drawing the screen). When the Arduino has finally time to check the button input, the uses might have release it already. Is ...
SaschaDeWaal's user avatar
  • 13
3 votes
0 answers
123 views

I just got an Arduino Mega ADK (which seems to be functional, based on my limited testing and knowledge) at a yard sale for under $5. I don't have any Arduino experience, but I'm into DIYing, so who ...
Galaxy's user avatar
  • 131
-1 votes
1 answer
298 views

I have problem with my SIM7000E. My PCB scheme and design is aveliable here https://easyeda.com/jaka87/new-vetercek While sending AT commands I get error as if sim card is not connected. I also put ...
Jakadinho's user avatar
  • 99
3 votes
2 answers
679 views

I am currently struggling with an intermittent problem with an Arduino project. Background I am using a LabVIEW program to control a few pieces of hardware. One of them is a NEMA 17 stepper motor that ...
Jay's user avatar
  • 61
2 votes
1 answer
646 views

I am looking to create a projector effect similar to one seen in projector alarm clocks like https://www.amazon.com/Mooas-White-Projection-Alarm-Projector/dp/B07Q6W53LK/ref=asc_df_B07Q6W53LK/?tag=...
Bbb's user avatar
  • 25
1 vote
0 answers
38 views

I have a NodeMCU and im trying to control a servo to move from angle A to B and viceversa. The thing is I want to be able to power off the servo after moving so it could stop getting voltage and ...
Marcelo_M's user avatar
  • 121
1 vote
1 answer
172 views

#include <Adafruit_NeoPixel.h> const int PIN = 4; const int NUMPIXELS = 10; const int BUTTONPIN = 6; int buttonState = 0; int PINState = 0; int level = 1; int dt = 100; Adafruit_NeoPixel pixels(...
louise moons's user avatar
  • 11
2 votes
2 answers
3k views

As a project I am trying to 'hack' an old E-bike. The electronic system of the bike consists of: A torque sensor measuring deformation of the rear. A 'spin' sensor measuring if the person is pedeling....
Sven Onderbeke's user avatar
  • 155
1 vote
2 answers
4k views

This is not a code error I have been using DS3231 RTC module with battery. When I bought this module It worked perfectly now when I get it to use, The time is running perfectly. when I set the current ...
Sharifdeen Ashshak's user avatar
  • 41
2 votes
1 answer
3k views

I'm using this ADC with a load cell for weight measurement, I had 4 strain gauges and mounted them on a cantilever structure that I made out of acrylic sheet, used calibration program from here: https:...
Somasundharam Sampath's user avatar
  • 110
0 votes
1 answer
403 views

I need some help. I copied the heart of MEGA2560 design into a new project. I have the new PCBs with blank MCUs and now I need to get things programmed. (I have an existing project that runs on a ...
gearhead's user avatar
  • 101
1 vote
0 answers
586 views

I just bought an APDS-9960 sensor yesterday and tried it out today using Sparkfun's example from its APDS-9960 lib, and the only thing it printed out was: "SparkFun APDS-9960 - ProximitySensor&...
Timothy's user avatar
  • 11
1 vote
0 answers
58 views

So recently, I purchased an Arduino Mega 2560 Kit from Amazon, which was customized from this company called Adeept. But when I tried to plug it into my computer, it didn't recognize it. This means my ...
Rashmeat's user avatar
  • 11
2 votes
0 answers
863 views

The problem Hey. I'm trying to use the sensor Mq131 to measure some ozone data in a closed environment, but I'm having some bad time to adjust the trim in the sensor and get results in ppb. By ...
Herr Schrödinger's user avatar
  • 121
1 vote
0 answers
2k views

Actually I need to make HTTPS post request using SIM7000 and ESP32 but the available libraries don't have a function for HTTPS post request, I wanna make this request using AT Commands. I need a ...
Vansh Sethi's user avatar
  • 31
0 votes
1 answer
1k views

I've been trying to test the stability and consistency of hardware interrupts on my NodeMCU ESP8266. I'm using the Arduino IDE. This sketch should not require any external circuitry and I think, but ...
S. Imp's user avatar
  • 216
1 vote
1 answer
91 views

My understanding of the H-bridge is, that activating in1 or in2 will direct the 12V current to the motor, so it either spins right/left. Not that in1 or in2 is the actual current passing through to ...
GeorgeWTrump's user avatar
  • 93
1 vote
1 answer
354 views

got my HC-05 today and accidently set the AT+ROLE=2(slave loop) and now I can't get out of it! Anything I send it just resends it back to me, even commands like AT+RESET and AT+ORGL, they just get ...
Sultan Hassanieh's user avatar
  • 11
1 vote
2 answers
636 views

can anyone please tell me the whole difference between hardware and software serial for the HC-05. I read UART,USB cable, serial and I was like really confused so what is the difference and advantages ...
klay's user avatar
  • 43
1 vote
0 answers
865 views

I am working on project where I have to do AES encryption of plain text received through normal UART port of ESP8266 create a cipher text and sending it to LoRa module (EByte E32 868T30D) through ...
Mr.B's user avatar
  • 57
1 vote
1 answer
447 views

I am interfacing the HTU21D sensor with my nodeMCU v3. All good! I managed to get some readings etc. But when I re-upload my code the device does not respond. If I remove the power supply from the pin ...
sanrays10's user avatar
  • 49
0 votes
1 answer
71 views

I want to build this project (but any other project would give me the same uncertainty): https://github.com/ltpitt/arduino-n64-controller-library But I cannot understand which arduino I can buy that ...
Pitto's user avatar
  • 103
0 votes
1 answer
142 views

I verified my code and uploaded it to the board and that was successful. Info: - Using Mega 2560 Arduino Board with Adafruit V1 - 3 DC 12 volt motors - on HP computer Here is my code: #...
Tommy's user avatar
  • 13
1 vote
1 answer
1k views

Hi I used this shield before well. But it didn't work when I wanted to work with him last night! this is my wireing : Now I want to know how to test that it is healthy? Is i2c address missing or not?...
navid's user avatar
  • 35

1
2 3 4 5 6