Questions tagged [wires]

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

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1answer
176 views

How to detect if the arduino wire is still connected

I have hall sensors connected to an arduino, because of mechanical movements there is some possibility that the input wire may accidentally slip out of the arduino analogin sockets. Is there any way I ...
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2answers
296 views

analogRead returning 0 constantly when connected to joystick

What reasons could there be for a joystick to return 0 when using analogRead? X-pin is connected to AO and y-pin is connected to A1. VCC is connected to 5V and GRND is connected to GRND. By ...
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2answers
4k views

Attiny85 DigiSpark: Drive 128X64 OLED screen, no picture problem

Devices used It's about these devices: Quick scheme (how I connected those) Got the wiring info from the TinyWire library Program I use (also many different examples tried but no luck): #include &...
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1answer
47 views

Remote controlled lights

I have a fixed roof light in my room that came with a remote control that can be fully taken apart. The remote control can switch the lights on or off using a radio system. I was wondering if there ...
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2answers
1k views

Adding external power supply to any arduino connected component

I have an Arduino Pro Mini 3.3v and the voltage is too small for my buzzer to ring loudly. I want to add a 9v battery to power the buzzer. This is my current circuit: Arduino (pin 9) => Buzzer +ve ...
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1answer
6k views

How to fix 12V RGB LED Strip connection to NodeMCU?

I am trying to hook 12V RGB Led Strip (LTROP SMD 5050 RGB LED Light Strip) to a NodeMCU unit. I know there are many different tutorials on this and I am very new to wiring and electric circuits. I ...
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1answer
202 views

How to wire Christmas lights with LEDs to use for Arduino Project?

First things first, I am new here and this is my first post. So if this is in the wrong place I apologize and please just let me know. I am a programmer that is getting into working with an Arduino ...
2
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1answer
194 views

Long run data wire

I need to connect the data of a LED strip (WS2812) to a pin but the strip is 10 meters away using AWG 22. I use a 12V DC power supply. Should I expect some misbehaviour, like the LED not getting the ...
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1answer
1k views

GSM and Bluetooth modules on 1 Arduino Uno board

I couldn't find anything on this topic. Task: to connect sensors to Arduino board via Bluetooth module, process the received data and then send the data to server via GSM module. Question: Is it ...
0
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1answer
132 views

Problems with Ultrasonic Sensor

I want to check my understanding on how to use digitalWrite for 5V and Grd and why this code isn't working. This is for the Makeblock sensor Consider the image here which says to plugin a wire to 5V,...
4
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2answers
148 views

Absolute noob looking for troubleshooting help

My 10-year-old son went to a "Robotics Camp" and came home with a non-functional Arduino robot. I figured it shouldn't be too much trouble to get it working. He swears he had it operating at the camp, ...
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2answers
940 views

Wiring LED strips in parallel & ground

Schematic: I am making some light fixtures controlled by an Arduino UNO. Each fixture will host two approx. 1 meter long analog RGB LED strips with a current draw at full power of ~1.2 A per meter. ...
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0answers
65 views

Inexpensive way of connecting a lot of modules on a distance

I need to connect a lot (~100) of modules with a computer (Raspberry pi). The modules are based on Arduino micro and are very simple. They will be spread around, but for the two adjacent the distance ...
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1answer
113 views

do i need to also connect GND and 3.3v

I am trying to run this code: https://github.com/miguelbalboa/rfid/blob/master/examples/ReadNUID/ReadNUID.ino Using an ESP8266 based D1 board and an RFID-RC522. I am not able to get it to detect the ...
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2answers
719 views

Best practices for really long distance sensor deployments

I'm noob to Arduino and electronics, but here is a problem from life which I need to solve for myself: We grow strawberries and early spring freezes can take most of the flowers from the plants. One ...
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2answers
84 views

Two Identical Potentiometers, two different results

quick question. I have two 10 turn precision potentiometers and I tested both when I bought them a few weeks ago, both worked as expected. However now that I have epoxied one of them into my project ...
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1answer
30 views

Controlling a NC connection from two sources?

I'm trying to control a garage door opener. The button that lets you open the door from the inside is a NC connection (press the button and it goes to "open" and makes the motor run). I want to keep ...
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3answers
2k views

How to wire up and trigger this SPDT relay?

How do I connect a SPDT relay to an Arduino? It's a DC 5V Coil 6 Pin relay and ultimately what I want to do is have the Arduino trigger the relay to allow voltage to pass through. I couldn't find a ...
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1answer
3k views

Triggering capacitive touch on a touch device

As you can see in the video, it is possible to trigger a touch with arduino. I have tried a couple of methods but with no success. I have a wire soldered on to a coin which is being used to trigger ...
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1answer
233 views

SparkFun EL Sequencer does not work

I have connected to EL wire, 12v EL Inverter to SparkFun EL Sequencer but it does not work (no battery is connected). The connections are the same like in Hookup Guide (https://cdn.sparkfun.com/assets/...
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1answer
164 views

Arduino wire question

I am a complete newbie to Arduino and I just received an ARDX arduino starter kit (the one that comes in the transparent green case) I have been following the instructions for Circ-01 for the blinking ...
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1answer
348 views

Arduino uno and ttl laser

I am using my uno with gshield for my cnc. I would like to put laser on it. Laser have 3 wires. Red wire to power supply +, Black wire to power supply -, White wire to Arduino digital pin. I need to ...
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1answer
2k views

Arduino to send sms one time only when a button is pressed

The LED_UPDATE() is called in my loop() function, I implemented it (tried anyways), to send sms as shown in the code such that only one sms is sent , because as the loop() keeps calling LED_UPDATE(), ...
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1answer
468 views

How to use Arduino Pro Mini without Programmer

I'm a software engineer, but I'm not too skilled at understanding hardware design yet. I'm trying to learn how to use an Arduino Pro Mini board without the programmer connected, so I can actually make ...
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1answer
249 views

The most practical plug socket

I am starting some Arduino's projects with different sizes (very small based on Arduino Nano and bigger using Arduino Mega). These projects will be manipulated by students and they will connect and ...
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1answer
116 views

Is this bluetooth setup good?

I am trying to do this tutorial http://www.instructables.com/id/Chappie-Self-Balancing-Robot/ on building a self-balancing robot with uno. However, I bothered by the Bluetooth wiring. I've done ...
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2answers
89 views

Attach headers to servo wires?

I have these 3 wires coming from a servo motor. They're very thin and flimsy and despise staying in a breadboard. Is it possible to add headers to these wires to make them easier to put in a ...
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2answers
121 views

Start timer when pins connected

I have switch is a line connected to Digital pins 1,2,3,4,5 . When pins 1 connects, I need a timer to start. as the rest connect i need it to mark the time in the console output of each one and End on ...
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1answer
2k views

How to wire an LMD18200 and an arduino?

Ive been working with a motor project for a while and i bought this H-bridge(LMD18200). I dont understand how im supposed to connect it to the arduino. Here is the datasheet for the lmd18200:
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3answers
2k views

Connect ethernet cable wires directly to pins

Is it possible to uncrimp a RJ45 plug and connect the wires directly to the Arduino pins? I guess I'd have to decrypt the ethernet signal then on my Arduino which might not have enough processing ...
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2answers
408 views

How to confirm a pin is fried

How do you confirm a pin has been damaged and is unable to work as a digital input? I tried detecting a pushbutton (connecting ground to pin 11 with a pullup resistor enabled) on a fresh Arduino Uno ...
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1answer
53 views

Unsure how to connect the anode in this circuit

I am making a game of X and O’s and ran out of pins on the Arduino. After searching on the internet I found out about connecting it in a grid connecting all the anodes in columns and the different ...
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3answers
151 views

Should long wires be kept separated from each other, to reduce interference?

Let's say someone has four CAT5 cables that are running along the ceiling for the length of a room (30 feet), of which most of the twisted pairs are connected to Arduino input/output pins on one end. ...
2
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3answers
3k views

Human circuit trigger

The main idea is to create trigger which can be switched on by touching 2 plates on opposite walls. And these should be performed by few peoples holding each other hands. Obviously human body has big ...
2
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1answer
513 views

what is the importance of the resistors that connect to push buttons ? can i replace them by wires?

Please, iam a junior in arduino and i want to know what is the importance of the resistors that connect to push buttons? can i replace them by wires? thanks in advance.
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1answer
480 views

Arduino, lcd 16x2 and UTP cable shows gibberish text?

I'm using an arduino uno, and an 16x2 LCD that is connected to the arduino uno with a 1m long UTP cable to transmit data and as well power the LCD screen. I used to test my code and my wiring with ...
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3answers
274 views

How can I turn this into an (Ableton) controller?

I found this lovely decade box in a demolished house recently and want to turn it into an Ableton controller. As you see, there are 18 knobs, each with 12 individual states. I'd like to have a ...
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1answer
181 views

Good tips for how to connect cables into Mux Shield II?

I just got a Mux Shield 2 and got it working as I expected. Now I started to find out how to actually connect the I/O cables to the board. Doesn't seem to be as simple as I thought. I don't want to ...
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1answer
56 views

Finding connectors for push button component

What type of connectors would I use for these buttons?: http://www.adafruit.com/product/1477 They sell wires with the connectors already crimped on, but I only need the connectors. I found https://...
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2answers
9k views

Connecting an Arduino to a telephone line?

I would like to connect my Arduino Uno to a telephone line in order to answer a call, record a sequence of DTMF tones, generate a DTMF tone in response, and hang up. The telephone line uses a ...
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1answer
398 views

Arduino Servo is behaving strangely

I am trying to use the Arduino Servo library to drive a simple servo and am having some difficulty getting it to even move. Here's the setup: And the schematic that Fritzing generated for me: And ...
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1answer
283 views

Arduino Servo circuit by example

I have an Arduino program that uses the Thread library to create two concurrent threads, where: Thread #1 blinks an LED every 500ms; and Thread #2 blinks another LED every 250ms I wired things up, ...
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0answers
68 views

How to splice into existing buttons?

I want to control a kettle. It has 4 buttons and a digital disply of the temp. I would like the buttons and disply to remain functional. I just want to make the buttons remoteky pressabke. The buttons ...
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1answer
505 views

Adding a steering servo

I got a Sparkfun Redbot Kit a while back. I ended up building it vanilla and it was a good introduction to the board (the board is basically Uno and a motor shield in one) and the toys that came with ...
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1answer
1k views

Wiring Lilypad USB + ESP8266 Serial WiFi Module

I am trying to solve the following scenario: Lilypad USB connected to WIFI through ESP8266 Serial WiFi Module. http://arduino.cc/en/pmwiki.php?n=Main/ArduinoBoardLilyPadUSB http://www.seeedstudio....
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1answer
69 views

do two arduinos that are linked to a common 9v rail and ground still need a common negative connection for a serial tx rx connection?

so that there a 2 wires rather than 3 to connect between the two for purposes of serial communication. And the same question for 3 arduino megas on a common rail and using serial connections?
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0answers
36 views

Adding HC-SR04 ultrasonic sensor to the board [duplicate]

I would like to add three more HC-SR04 sensor Currently I have combined the Arduino UNO R3 with the AR 293d(refer to below graph), and pluged in one HC-SR04 sensor to the SRO4 hole at the left top ...
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11answers
12k views

What type of connector does the GROVE system use?

What type of connector does GROVE use? I'm interested in wiring some old sensors so they're compatible with GROVE, so I first need to identify the connector so I can buy the housing and pins to crimp....
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1answer
704 views

Powering LCD Displays without a Breadboard

I hope that this is not a silly question. I may be hoplelessly optimistic in asking, but is there any way to power & display information onto a LCD Display from an Arduino Uno.... Without the ...
0
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1answer
223 views

Can I mix 22awg and 26awg hookup wire in the same circuit?

I'm still fairly new to Arduino projects, and am only just now getting into building circuits where I want to cut and place my own hookup wire instead of using the precut jumper wires. I inherited ...