Questions tagged [arduino-uno]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
-2
votes
0answers
20 views

What is lost packages rate in lorawan network?

Hi i am trying to impelement Lorawan network in Arduino Uno and send Successive Packet from one node to one gateway. i read a paper about that and i face with the lost packages rate that calculated ...
0
votes
0answers
14 views

arduino uno connected with MCP2004a Lin Bus

i have Lin Bus connected with arduino uno project ,simulaton will be in proteuse but the question is I could'nt find the MCP2004a devices in proteuse to do my shematics olease some help ?
10
votes
5answers
2k views

Did I design my LED circuit correctly?

For my wedding I'm making some letters which I would like to provide with some LEDs. To have the full "I made this myself" experience, I gave myself a course on electrical engineering (...
0
votes
1answer
31 views

Ultrasonic sensor not detecting any values when using Arduino and LabVIEW

I have connected the circuit as shown. The circuit works perfectly when I Use the Arduino ide. When I use LabVIEW, the distance from the ultrasonic sensor is always zero. The LabVIEW circuit diagram ...
0
votes
1answer
112 views

Arduino accidentally transmitting FM

I was trying to make an FM transmitter and, because I have no mic, I thought I could just use an Arduino (Uno) to generate some tones for testing. It turned out I never got a signal from the circuit ...
0
votes
0answers
30 views

16X16 matrix, analog sensors, VDD, GND, comon OUT to Arduino UNO A0. How to operate the GND MUX?

I have 256 analog sensors that have VDD (5V), GND, OUT ( analog output that goes to A0 of my arduino uno). i was hopping to controll them by turning them on or off individualy and take readings in A0 ...
0
votes
2answers
58 views

How can one determine the pulse width of a servo motor?

I have recently started to fiddle with an Arduino UNO R3 kit I bought some time ago, and I got so hyped that I have decided to build a robotic arm. This robotic arm which I found on Thingiverse ...
1
vote
0answers
31 views

Connecting two FSRs in Series

Does anyone know if i can connect 2 FSR in series and then in parallel to a fixed resistor, creating a potential divider circuit. Given the inaccuracies and low repeatability of force reading from one ...
1
vote
2answers
78 views

What are the general characteristics of a faulty Arduino UNO board?

I am building an Arduino based project with DS1307 RTC clock module and storing an offset value, rarely updated though, in its EEPROM. But I am observing drift in the time as well as the offset value ...
1
vote
1answer
37 views

How can i generate a negative potential/current and alternate the pin-input between positive and negative potential/current using an arduino uno?

My goal is to make the barmagnet rotate by activating two coils and use both forces at the same time with an Arduino Uno. One coil should have a positive potential or current to attract the negative ...
4
votes
4answers
299 views

Output from TD100 with instrumentation amplifier not as expected

I've been having trouble with my TD100 circuit for a few days now and I cannot understand why the output isn't as I expect. This is the process: simulate this circuit – Schematic created using ...
1
vote
2answers
47 views

Unable to upload anything to Arduino Uno

Any time I try up upload a sketch to my Arduino, I get the following error message: That "1 of 10" then repeats all 10 times, and ultimately fails. I know that this board works, as I am ...
0
votes
0answers
25 views

lorawan end-device in class B

i am trying to implement Lorawan network in Arduino uno and end-devices are in class B. My question is how i build beacon and brodcast in network ? or there is a command in lorawan mac layer to do ...
0
votes
1answer
46 views

W5500 with stm32h743 micropython

I am running micropython 1.14 (happens also on 1.9) on the NUCLEO-H743ZI dev board (compiled using the board definition in micropython, no further changes) connected to a W5500 shield. The issue I am ...
0
votes
1answer
45 views

Help in identifying the motor

I am total noob in electronics field. I had some broken electonics appliances lying around house so now I am trying to build something out of it. Can you guys please help me with identifying the motor ...
0
votes
0answers
68 views

TinkerCAD schematic to Eagle for PCB design

I am new to the world of PCB design but I am having a hard time trying to convert my .brd file from TinkerCAD to Eagle. I've been following this tutorial for my conversion needs but it's almost ...
0
votes
2answers
79 views

How can I use my Arduino together with an external power supply?

I am trying to design a simple square wave inverter (15V input from my power supply). For this purpose I will design a H-bridge with 4 MOSFETs controlled by the Arduino (5V or 3.3V output). The thing ...
1
vote
0answers
37 views

Is it possible to drive an arduino nano and a 5v solenoid via usb?

So basically i want to make a clicker with a solenoid like an old school IBM keyboard. What i'm thinking is to put and arduino nano and the smallest 5v solenid i can find inside my keyboard and ...
0
votes
0answers
55 views

How do I format this Pro Micro?

I am using a Pro Micro, which the Arduino software for sketches identifies as Arduino Micro. When I plugged it into power the LED lights were too bright for my eyes to handle, so I verified and then ...
1
vote
1answer
72 views

How to reduce ADC output value fluctuations?

I'm trying to read the output voltages of some LMC6001 op-amps through an ADS1115 ADC, to get higher resolution. In the process of doing so, I'm reading huge fluctuations on the serial monitor without ...
0
votes
1answer
35 views

Choosing capacitors for a full swing oscillator and an ATmega328P

I am relatively new to embedded electrical engineering. Iam attempting to rebuild the Arduino Uno PCB for learning. I am familiar with the Pierce oscillator and LC circuits and some of the math around ...
0
votes
0answers
7 views

how use XCTU configuration software?

I have an XBee 24 module, and I want to program it. I have used the XCTU configuration software, but my XCTU does not have CE. How can I make my module the coordinator? I am using an Arduino to ...
0
votes
0answers
11 views

Unable to re-flash firmware on USB host using and UNO and ds30 loader

I didn't think the Arduino stack exchange was good for this because I'm only utilising the arduino for its USB to UART capabilities but nothing else. Anyway, a long while ago I bough a USB Host from ...
0
votes
1answer
53 views

Where can I find how to use those rf transmitter/receiver

I bought those rf trans/receiver (GWB T400) I figured out that the sck, miso and mosi are for the spi communication. Gnd and 3v3 are pretty clear as well but I’m not sure what rst and cs are for. I ...
0
votes
2answers
62 views

Newbie Assistance - Understanding Fairy Lights

I'm VERY new to EE and am learning the basics. My first goal is wiring up some small lights for my son's LEGO projects, and am trying to sort out the basics here. Right now, I'm attempting to piece ...
1
vote
1answer
58 views

MSGEQ7 producing max output for all frequency bands

I have been following a MSGEQ7 tutorial by J Skoba (http://nuewire.com/info-archive/msgeq7-by-j-skoba/) and have set up my circuit in the exact way he has: And I'm using his code: ...
-1
votes
1answer
185 views

MCP2515 CAN Transceivers can't go higher than 125kbps

So firstly, you'll have to excuse my lack of electronic knowledge and popper terminology, this is my first crack at anything outside of the software world. I have 2 MCP2515 CAN Transceivers (the cheap ...
0
votes
1answer
39 views

Trouble understanding a given circuit for an LDR pulse sensor

I'm a second year physics student, part of a group, and we're trying to build a pulse monitor following this guide. This is the schematic I'm having trouble to understand: I have basic knowledge of ...
1
vote
0answers
56 views

MSP430 UART Reading

I'm trying to transmit and receive data between Arduino Uno and CC430. There is no problem with sending data from CC430 to Arduino Uno. I can receive the data on Arduino side. Also I can transmit the ...
1
vote
1answer
42 views

Existence of input signal to LED at photodiode output

I try to make simple LED/photodiode circuit by arduino and 741 op amp. I used mid-IR LED by 200mA current and suitable photodiode for it. I wanted make pulsed signal by digital output of Arduino UNO ...
1
vote
0answers
34 views

Atmega328p-pu (arduino bootloader) processor freezes/resets randomly

I have updated the schematic of my project. The board for this was produced and all components are soldered to the board. Now I am trying to make a "n20 gear motor" move using the motor ...
1
vote
1answer
115 views

Can I Use Arduino Libraries in STM-IDE?

I am fairly new to programming microcontrollers and I want to know if I can import libraries, that are written for Arduino, in other IDEs such as STM32CubeIDE. For example can I use the library HX711, ...
1
vote
0answers
40 views

ATtiny85 Yikes Error While Burning Bootloader

I'm using an Elegoo uno to burn the ArduinoISP example code on to an ATtiny85 SMD. I wired the board according to the "#define USE_OLD_STYLE_WIRING" using pins 13/12/11/10. The wiring ...
1
vote
2answers
123 views

Is there a technical reason why the Arduino Uno has such a distinctive board shape?

Why does the Arduino Uno have that slanted shape at the right of the board? Is there a particular technical reason for this design choice, or was it just for esthetics?
1
vote
2answers
81 views

Arduino Uno Schematic Parts

I am trying to determine what two parts of the Arduino schematic are (I am quite new to reading schematics). I have circled the areas of confusion. Please let me know what these components do and ...
0
votes
0answers
34 views

L293D driver DC motors need help to start rotating

I set up this circuit which uses L293D motor driver IC to control two DC motors. +6V input is connected to unregulated power supply. It's current rating is 500 mA. There is a connection between ...
0
votes
0answers
64 views

Turning on and off two set of Leds with two tactile button (push buttons)

I have two sets of 4 LEDs. Set A (Led1 Led2, Led3, Led4) Set B (Led5 Led6, Led7, Led8) Both sets have its own tactile button: Tactile A, Tactile B, Tactile A, turning on the LEDs set A and tactile B ...
0
votes
0answers
63 views

New ATMEGA328P-U upload failing

I bought a new ATMEGA328P U with Arduino bootloader incorporated. I put it in the board but the upload is failing. I don't know which bootloader it has... Any idea how to solve it? Should I re-flash ...
0
votes
1answer
76 views

Help with electret mic

I'm using this preamp circuit for my electret microphone and then feeding the output to A0 analog pin of an arduino uno board. For some reason my serial monitor in the arduino ide shows the output at ...
0
votes
1answer
124 views

How to interface a thermal printer to an Arduino

I've a thermal printer which has TTL, RS232 & a four pin interface. I want to connect it to an Arduino and take printouts with it. It has the following pinouts: RS232 & TTL GND TXD RXD DSR ...
0
votes
1answer
40 views

How does this spectrometer sensor output its data and how to process it?

I want to this sensor and an Arduino board to obtain the wave length data and log or plot something like the following: Here it shows how to connect to the Arduino board. But no code and no ...
4
votes
2answers
683 views

200 mA output from the Arduino digital output

200mA and 0.2V are needed to turn on a mid-IR LED. Given that the output current of each digital pin in Arduino UNO is 40mA, is sufficient current provided by simultaneously connecting 5 pins to the ...
2
votes
2answers
787 views

Arduino UNO voltage drop

My Arduino UNO board is powered with external 5V SMPS through the DC input. On measuring the 5V pin on the Arduino board pinout, I find the voltage to be around 3.7V and the L13 onboard LED glows ...
2
votes
2answers
208 views

My DC motor slows down and stops while using an L298N motor driver with an Arduino Uno

Whenever I run a program for running the DC motor, the motor suddenly slows down and finally stops, I don't know why it happens. I use an L298N motor driver, an Arduino Uno, and a 9V battery for motor ...
0
votes
0answers
25 views

How are the connections made to the driver module as shown in the figure below

How are the connections made from the Arduino, the battery, and the motor to the motor driver module? I am not able to make these connections.
0
votes
1answer
168 views

How to use separate power source for raspberry pi + Arduino and motors as shown in the image below

Is it possible to make this circuit or will this work? I want to power the raspberry pi and Arduino with a powerbank and motors with a separate battery through the driver module as the diagram shows. ...
3
votes
1answer
91 views

ATmega328P development board not working

I've made a development board for ATmega328P like Arduino Uno. Fig. 1 - schematic Fig. 2 - bottom layer Fig. 3 - top layer I am able to upload the code using FTDI chip (I've used the chip which ...
0
votes
0answers
65 views

Arduino reboots or Hangs Up: Memory/Stack problem?

Using an Arduino Uno. Code runs fine for long periods of time and then either reboots or hangs up. Sometimes problem happens soon after power up. I have been researching causes on Stack Exchange, and ...
2
votes
2answers
166 views

Burnt uno A0 pin!

I was making a voltage tester with the Uno and the input was A0. When I went above 10 volts into A0, that pin stopped working. Is it possible to fix the pin? If so, what do I do?
1
vote
1answer
52 views

Advice on Arduino project for smart light bulb planning

I'm starting a new project (for personal use), I want to build a circuit that will enable me to control a lightbulb through my phone. I want to use it as an additional lighting at my living room. ...