Questions tagged [wires]

Wire is a conductor that used to connect electronic components each other

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How to Connect Two CQRobot Ocean Non-Contact Water/Liquid Level Sensors (CQRSENYW001) to Arduino UNO REV3 (A000066)?

I am a complete beginner trying my hand at a home automation project. Part of my setup includes using an Arduino UNO REV3 (A000066), and connecting two CQRobot Ocean Non-Contact Water/Liquid Level ...
Cody Kentucky's user avatar
1 vote
1 answer
69 views

What do I need for a plug?

I've manage to build myself an RFID music player which I'm pretty chuffed with. It's definitely a bit home made but it woks and I'm proud of it. I don't know what plug type to buy to sort my problem ...
user1357607's user avatar
2 votes
1 answer
2k views

Button Matrix / Wiring Schematics

I am just beginning my journey into the Arduino world - plenty of development experience, but basically nothing with electronics outside of building computers. The question I have involves wiring ...
Scott Salyer's user avatar
-1 votes
1 answer
279 views

4x3 keypad not providing any output and the output it does provide is incorrect

I am trying to figure out how to use a 4x3 keypad and just want to receive the key numbers I select on the serial monitor. The problem I am getting is that some of the keys I type don't give me any ...
Campbell White's user avatar
-1 votes
1 answer
82 views

Pressed Buttons are permanently low and one of them is not working [closed]

I am a beginner to Arduino, and I'm having a problem in a project that I am currently working on. I was just beginning to write the code, after preparing the components and the wiring, and suddenly ...
lolflexgameplays's user avatar
1 vote
0 answers
182 views

Micronucleus firmware 2.6.1 - Activate bootloader put D- pin to high

I flashed my ATTINY85 Digispark v3.0 with micronucleus firmware 2.6.1 and it works fine, the onboard led lights up and the another led blinks twines every 500ms (not sure way but it seams like ...
Mats Hildingsson's user avatar
0 votes
1 answer
60 views

Bootload from a Nano to an ATMega328 without a crystal

I have a program to load from a Aduino Nano as ISP to a ATMega328p chip that will have an internal clock at 16M, but I don't have a crystal handy. Is there a way I can not have to buy a crystal? What ...
B7th's user avatar
  • 167
1 vote
0 answers
35 views

Help needed to check if my solenoid wiring is correct

I'm planning a new custom keyboard project which involves a solenoid being controlled by a Teensy2.0++, and i would like to power everything with just a USB cable. I don't have much electronics or ...
Coke2Code's user avatar
1 vote
1 answer
106 views

How to use this specific arduino shield

I am trying to understand how to wire this Arduino Uno shield properly. My goal/main questions: I have 6 servo motors and I am trying to wire them properly to this shield. Do I need an external ...
Yulian Prodanov's user avatar
4 votes
1 answer
628 views

Arduino UNO won't move servo

I have a simple MG996 servo motor and I am trying to make it move with my Arduino Uno. I tried different ways of wiring but nothing seems to work as fully expected. For the wiring I followed this ...
Yulian Prodanov's user avatar
5 votes
1 answer
141 views

Wirelessly (but fast) transfer STEP and DIR output from Arduino to stepper driver

Very short version: Looking for a way to wirelessly get STEP and DIR signals (only those two signals) from an Arduino to a DRV8825 stepper driver about a meter away: Arduino -> STEP and DIR IO pins ...
Jasper's user avatar
  • 151
0 votes
1 answer
364 views

I2C pull up resistors and an I2C MUX

I have a rig with 5 light sensors on an I2C mux and I am wondering if I need only 1 pull-up resister set for the whole bus or one on each branch from the mux? Or should I remove all the pull-ups from ...
levi Clouser's user avatar
2 votes
1 answer
43 views

Connecting LEDs and push buttons 12 feet away from Arduino UNO

I have a PCB (let's call it remote PCB) on which I have 4 LEDs and 4 buttons mounted. The remote PCB is far away from my desk (about 12 feet away). The LEDs are used to indicate the status and the ...
Sonder's user avatar
  • 191
2 votes
2 answers
337 views

Use chars in quotes in const char* as name of function

I have been trying for a long time how to use a word declared as const string* word = "xxx" as name of void function declared somewhere below in my code. Here is example with ssid: const ...
oreo's user avatar
  • 39
1 vote
1 answer
287 views

NodeMCU and relay with VIN power

Have read a lot of different things online, and I just ain't sure yet. I'm trying to hook up a NodeMCU to control some relays. And want to power the NodeMCU by the VIN pin. Anyone know if this setup ...
John's user avatar
  • 13
2 votes
0 answers
71 views

Do these types of wires exist? [closed]

I was wondering if the following type of wire adapter existed. Because I have some small JST pins and I need to connect them to some JST XH pins. (Preferably on amazon): JST to JST XH adapter
DigitalRookie4's user avatar
1 vote
0 answers
105 views

Aurdino EMG sensors and servos?

I'm new here and to the aurdino. I'm building a 3D printed robotic arm controlled by a EMG sensor. I purchased a V3 EMG board and leads on Aliexpress. Here's a list of the things I've purchase for ...
Jonny3777 's user avatar
1 vote
0 answers
74 views

Hall Sensor (Fluid Flow) "Noise"

Kind of a fringe question here, but could not find anything concrete so figured I would throw it to this great community. I have 2 DS80 flow meters (Hall Effect Sensor type flow meters - nothing ...
charrold303's user avatar
0 votes
1 answer
173 views

Voltage from batteries in series operating on 3 ATTiny, 3 Buttons, and 3 Piezo buzzers

I intend to power three ATTiny45 chips (each requiring around 3.5V) in parallel with 2 pill batteries (namely Maxwell's CR2032) in series (which would come to around 6V). They will each play a sound ...
B7th's user avatar
  • 167
0 votes
1 answer
348 views

7 segment 4 digit not showing numbers 2,3 and 0

https://www.instructables.com/Using-a-4-digit-7-segment-display-with-arduino/ I used this link to make my circuit and I used this code also but some numbers like 2,3 and 0 doesn't display correctly.
Hasan's user avatar
  • 11
2 votes
1 answer
115 views

Adding a common activation pin to a group of buttons

I'm working on an Uno, which has only two interrupt capable pins, but i need at least three buttons to wake it up from its power saving mode. Is there a way to wire buttons such that, in addition to ...
none none's user avatar
  • 233
2 votes
0 answers
128 views

Brushless motor vibration/jitter/noise - arduino uno

I am currently using these motors and driving them off these drivers and an arduino uno, and alternatively trying to make them turn using the setup in step 6 (both with l298n and without) in this ...
Andrew Li's user avatar
0 votes
0 answers
66 views

Using Flexinol Or Muscle Wire To Control Paper Flower Petal With Arduino

I am relatively new to Arduino and I am looking to use flexinol or muscle wire to control flower petals. I think I will need to control 4 sets of the wire. I have totally no idea of how to wire the ...
jnewn's user avatar
  • 9
3 votes
2 answers
125 views

Switched from 3ft to 10ft connection wires. My setup doesnt run correctly now. Timing issues?

Running a DC motor(6.5A max input), motor driver (MD10C 7Amp peak output), and Arduino Mega. I am stabilizing an object with an accelerometer as my sensor. I switched to longer wires so I can have my ...
Thunder Dornhofer's user avatar
3 votes
3 answers
4k views

How to wire a three-pin on-off-on switch for reading input?

I would like to read the output of an on-off-on switch with my Leonardo board, but I have very little knowledge of electronics and don't know how to wire it up. This is the switch in question: E-...
Boonswaddle's user avatar
0 votes
2 answers
306 views

How to connect neo 6m 6pin module with nodemcu v3

I got this neo 6m gps module from a broken drone. and i would like to connect it to nodemcu v3 board. most of the gps module that i have seen are with 4 pins (vcc,gnd,tx,rx) , but this module has 6 ...
user68436's user avatar
0 votes
1 answer
276 views

Is this circuit properly made?

I can't get to work a circuit that doesn't look that hard to copy. This circuit was done for an Arduino extension of my DSC HS2032 system. I was trying the example "Status" on the Arduino's ...
John's user avatar
  • 47
2 votes
2 answers
768 views

Sending minimal data between two Arduinos far away from each other

Problem: I need to send small integer numbers (single-digit numbers suffices) between two arduinos located approximately 50-60m away from each other. The connection must be made through cables. I have ...
user1420303's user avatar
-1 votes
1 answer
662 views

ESP32 proper DS18B20 wiring

I want to connect a DS18B20 to my newly bought Heltec ESP32 LoRa (V2). For initial testing I have used some standard code: #include "heltec.h" #include <OneWire.h> #include <...
Cowboy_Patrick's user avatar
0 votes
2 answers
562 views

Arduino Connect Long Wires/Cables

i am completely new to hardware programming and micro controllers and i am unable to figure out what search-engine search-term to use to find the answer i am looking for. the project i am working on a ...
X0r0N's user avatar
  • 101
-1 votes
1 answer
550 views

ATmega328P-PU blink example not working

I moved from an Arduino to a bare ATmega328P-PU (to save energy). First I wanted to start a blink-script to verify that it's all working. For this I flashed the bootloader and uploaded the blink-...
Cowboy_Patrick's user avatar
0 votes
1 answer
51 views

Generate number

I wanna make some sketch to generate number to represent sensor value, with range from high (900) to low (670), that number decrease with range between 1-10 and with some delay of switching number ...
Ulinnuha Luthfi's user avatar
0 votes
1 answer
825 views

New OLED seems dead, how can I be sure?

I bought this 2.8" OLED from Aliexpress a few weeks ago: https://www.aliexpress.com/item/32988174566.html?spm=a2g0s.9042311.0.0.72304c4dAWcHG8 And after a ridiculous amount of searching for a ...
MyztikJenz's user avatar
1 vote
0 answers
116 views

lightshow project

Hello guys. I'm working on a little lightshow that has 3 extra feature's when i press the button. depending on the variable counter the lights should do something and it should message you that you ...
Dashcarwash's user avatar
2 votes
1 answer
3k views

Does AWG size affect signal from sensors?

Would using a thicker cable like 16 AWG affect the signal being received from an RFID or Ultrasonic sensor? I understand AWG can make a significant impact on voltage when a thick cable is used over ...
StMartin's user avatar
1 vote
1 answer
45 views

Wiring power new power button to UPS power module for raspberry pi [closed]

I have a UPS Power Module Expansion Board for Raspberry Pi 3B/3B+(Plus) and removed the power button because it is in the way and would like to attach this read button instead. But it is not working, ...
Mohammed's user avatar
  • 113
0 votes
1 answer
3k views

Wiring ESP8266 and PN532

I'm trying the Android Hce example in this PN532 library. I can't find how to set SDA and SCL address in the code, so I tried connecting them in CLK and SD0 pins. The serial monitor gives me "Didn't ...
Maray97's user avatar
  • 21
1 vote
3 answers
451 views

How to set cables to connect CP2102 to Pro Mini?

How to connect the cables in order to program the pro mini with the CP2102 usb interface ? The TX RX and GND is easy, but I am not sure about the RST, DTR, DST, etc When I try cables like this: TX .....
adrianTNT's user avatar
  • 252
0 votes
1 answer
61 views

Can an Arduino Pro Mini interface with a full-sized WiFi shield?

We have an Arduino Pro Mini on a breadboard connected to a 9V battery and a sensor, reading data. We also have a full-sized Adafruit WINC1500 WiFi Shield with PCB Antenna. I would like to know if they ...
Ellen Spertus's user avatar
2 votes
1 answer
108 views

Arduino UNO and TB67H303HG Ic driver: Wiring question

I would like to control the TB67H303HG (a full bridge driver IC for DC motor adopting MOS in output transistor) with my Arduino UNO. This is its datasheet. I was thinking to connect: PIN 3 INPUT to ...
Marcus Barnet's user avatar
0 votes
1 answer
92 views

New to arduino, help wiring relay

I am new to arduino and need some help. I just baught light bars for my jeep and wiring harnesses with them, the harnesses come with buttons and I wanted to replace the button and have them controlled ...
JamminGinger's user avatar
3 votes
1 answer
69 views

Why I am connecting positive wire in the circuit?

I have constructed a simple fade in and fade out circuit similar to given on this website https://roboindia.com/tutorials/arduino-analog-output-led-fade Now I am connecting a wire from 5V power pins ...
Bhavya Budhia's user avatar
1 vote
1 answer
579 views

16 X 2 LCD display blank with Arduino Uno

So I am following this tutorial to make my arduino display hello world and millis(), I got it to work for a minute, but then it stopped updating the milliseconds, and when I pushed the reset button it ...
Asher's user avatar
  • 31
1 vote
0 answers
924 views

What am I missing? ST7735 TFT white screen

I followed this guy's guide with regards to wiring, etc., and all I seem to be getting is a white screen, as shown in these pictures. Is there an issue with the guy's guide, I'm missing or there is an ...
BradSabbath's user avatar
0 votes
1 answer
70 views

Can I read using an analog pin on an arduino Mega whether or not there is a high (5v) voltage on a wire from another board's digital pin?

I am making a peer-to-peer network of initiating devices and a common hub, which controls most of the hardware. It sends a number over Serial to Mega's Serial1 (Mega's Serial is used for communicating ...
SYGMAH's user avatar
  • 29
1 vote
0 answers
219 views

Sensors are not function with ESP8266 WeMos-D1R2

I attached all sensor into the Wemos-D1 for uploading the sensor data to the server. but when I upload the data to the server, it connects to the server but cannot save the data into the database and ...
Annoymous20's user avatar
-1 votes
1 answer
657 views

Connecting Winsen ZE11-C2H4 Sensor to Arduino

How should I connect the ZE11 Ethylene Sensor to an Arduino Uno? I want to know how to attach the pins of the sensor to the Arduino and which resistor I should use. I'm very unprofessional at working ...
Mufti Omer's user avatar
2 votes
0 answers
63 views

Project: Relay is ticking, but not actually switching [closed]

I'm trying to make an automatic planter for herbs etc. I finally got everything 3D printed and wired together. But for some reason, the relay I'm using refuses to switch or enable certain connections. ...
dev deque's user avatar
2 votes
1 answer
59 views

Sending data over two independently powered arduinos

I have multiple arduinos that are each powered by a 12v battery through a 5v regulator. All arduinos share a common ground. Can I simply connect the digital output from one arduino into the digital ...
Kevin Li's user avatar
1 vote
0 answers
451 views

Correct wiring?

I'm doing some Home automation and am currently trying to automate my intercom system. My overall aim is to be able to detect when someone has pressed the buzzer and then to be able to open the door ...
Rocco's user avatar
  • 165