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

2
votes
0answers
42 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. ...
1
vote
1answer
40 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 ...
1
vote
0answers
38 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 ...
0
votes
1answer
34 views

Use SD-Card module in combination with MKR GSM 1400

I have bought a SD Module with the following Pin-Names: VCC,GND,MOSO,MOSI,CS,SCK. I've found many tutorials on how to use it with the Arduino Uno. But haven't found any on how to wire it with the MKR ...
0
votes
1answer
20 views

How to connect both MicroSD module and MPU9235 power in an arduino

I'm really new at electronics and wiring, so please be kind. Coding is my stuff, but I'm trying to learn something here. I'm working with a project to store the movements of a skateboard through a ...
0
votes
1answer
20 views

1.54 e-ink without driver [closed]

i wan’t to know if is possible to use this raw e-ink display with arduino. if it’s possible to directly connect cables from this ribbon cable to arduino without any driver pcb and control it with 3 ...
1
vote
1answer
44 views

How to prevent shoot-through when swiching a motor with a bridge?

Ideally, when wiring a motor with an H-Bridge one would ensure that all "open" operations are performed before and "close" operations in order to prevent a short circuit. How does one ensure that ...
-1
votes
1answer
181 views

3 digit 7 segment display

I have 3 digit 7 segment display with 10 pins I found this image pinout but it not working for me I need to know the pin out of this display
1
vote
1answer
40 views

Connecting CAT5 robustly between portable Arduino and more portable sensors

Newbie wiring question. I’m building a lightwand of some sort, involving an RGB LED and a few pushbuttons that I want to wave around (the “remote”), while staying connected over ~0.5 - 3m to an Uno (...
1
vote
0answers
75 views

Connecting RCA audio cables to Arduino

I'm working on a project which needs better audio quality than just a piezo buzzer, so I went out and bought a pair of used cheap speakers for $3. It turns out that they have RCA audio inputs rather ...
0
votes
3answers
89 views

Connecting arduino ground with battery powered remote control ground

I soldered a cable to the button of a remote control and I want to simulate that button press by setting the pin to input mode and back to output (LOW) again. For this to work I connected the ground ...
2
votes
1answer
248 views

How does DDRD |= _BV(PD2) differ from digitalWrite(2,HIGH)?

I'm attempting to copycat the work of Louis Frigon's Toyota Aux Enabler. I have (with a lot of help on this site) managed to begin capturing and understanding messages on the AVC-LAN bus, but I can't ...
1
vote
1answer
125 views

Portal gun sound effects and lights

I'm building a portal gun from the game Portal and I'm struggling with the wiring for the lights and sound. I've the lights working using the first image from Instructables and adding more LEDs ...
0
votes
0answers
35 views

What am I doing wrong? (LED PROBS)

I have chopped up and spliced together some USB cables to combine with several strips of LEDs to create (what should be) a daisy-chainable setup that I can use to make a light fixture. Below is a ...
0
votes
1answer
637 views

Hardware Serial connection for Arduino Mega 2560 NEO GY-GPSMV2 GPS module

My project is Vehicle Tracking System, One of my module is GPS module (Neo GY-GPSMV2). I can successfully see the GPS coordinates via Software Serial. But what I want is that my Arduino should not be ...
0
votes
3answers
628 views

16*2 1602A LCD not displaying any character or contrast, although correct wiring

I've used my LCD display with a lot of small projects. Now it doesn't work anymore. Most of the diagrams you find online use resistors and potentiometers. However I never done that, but still got it ...
-1
votes
1answer
39 views

Faulty self-made motor controller [closed]

My friends and I tried to make our own controllable car. We managed to set up the motor with the Arduino in a way which allowed the motor to be driven back and forth. The setup we use simulate this ...
-1
votes
1answer
71 views

Concave button wiring with Arduino

I am new to working with Arduino and I have a basic question. I have an entire circuit set up and functioning, but I would like to add an arcade style button (Larger concave style) like this. So my ...
0
votes
1answer
68 views

ESP8266 only executes Sketch after switching on/off CH_PD pin

I started a new project with an ESP8266-01 module. I want to use it as stand-alone circuit to send an Email at the press of a button. The wiring is: VCC - 3.3v VCC CH_PD - 3.3v VCC GND - ...
0
votes
1answer
515 views

Confused between SPI and I2C for SSD1306 OLED

I recently got myself an SSD1306 OLED display: I haven't been able to successfully wire it to an Arduino (Mega 2560) however. I have been reading up on I2C and SPI and checked some libraries from ...
-4
votes
1answer
1k views

Wiring when burning the bootloader of esp8266 [closed]

I want to burn the bootloader of esp8266. Assume I have esp8266 on esp12 in hand and an USB ISP programmer (or any other programmer like USBTinyISP). I (think I) know how to use the Arduino IDE to ...
0
votes
4answers
96 views

What are these wires called?

I'm currently developing a quad copter for my school project and I am coming to the part where I am collecting all the parts before I assemble everything. I have recently encountered a roadblock. I ...
1
vote
3answers
69 views

How much power can a proto board handle?

I have been working on a project where I will be powering an Arduino and some LED light strips (2 x 3 Meter strips w/ 30 LEDs per meter). I am powering all of it from a 5v 10amp power supply. ...
0
votes
1answer
110 views

Coding or Wiring? Dual Piezo sensor not triggering LED lights

I am running two piezos off an Arduino UNO and trying to get 10 LED lights to trigger when the piezo voltage exceeds a certain threshold. Problem is, the LEDs wont fire when the Piezo voltage exceeds ...
2
votes
1answer
68 views

More missed messages with longer cables with nRF24L01+?

I am using nRF24L01+ 2.4 GHz transceiver. When I connect them directly (with SPI pins 10..13 from Arduino) to the adapter board for the nRF24L01 I get occasionally errors (meaning the receiver does ...
1
vote
3answers
85 views

Powering on the PC

I located the two pins that are responsible for powering up the PC. They are connected to the Power On button and one pin has an output of 5 V while the other is the ground. So far so good, the ...
2
votes
1answer
1k views

Issue with code for SDA/SCL TC9548A Multiplexer and HMC5883L sensors

This is my first time posting on this forum, so I hope my question is appropriate here. My team is working with the Adafruit TCA9548A 1-to-8 I2C Multiplexer Breakout board to try and read from six ...
1
vote
1answer
48 views

Dynamically switching pin out

I have a connector with 10 pins, and a bus which uses 2 of the 10 pins. What I need to do is, in software, attach my arduino to 2 of the 10 pins. I cannot wire it directly as the 2 pins required may ...
1
vote
0answers
185 views

How to recreate this basic ALPS switch board in Arduino?

I want to recreate this existing ALPS switch board (the board on the left) in Arduino, so I can control the switches (and 3 memory + 1 menu buttons) from my laptop. The ALPS switch board connects to a ...
1
vote
1answer
2k views

Wemos D1 & Relay shield

For one of my hobby projects I would like to use: Wemos D1 mini pro (schematic) Wemos D1 Relay Shield (schematic) to control the 24V (19W) mist maker. My current wiring is this: As you can see the ...
1
vote
0answers
264 views

How can I connect a Fona to an Adafruit feather?

I have this adafruit-feather-huzzah-esp8266: https://learn.adafruit.com/adafruit-feather-huzzah-esp8266/pinouts and I want to connect a Fona board. But I am not certain which pins have the ...
1
vote
2answers
1k views

Arduino board is turning off when I connect to +5V

I am trying to set up an LCD screen without using a resistor or a potentiometer for an Arduino project. This is the LCD I am using: Basic 20x4 Character LCD. But when I connect to +5V on the Arduino ...
3
votes
1answer
56 views

wiring a arduino led project

I am moving a project from breadboard and jumper cables. It light a bunch of LEDs with different sets running of many almost every pin. I need a few meters of cables. I will a resistor on each led. I ...
0
votes
1answer
112 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 ...
0
votes
2answers
127 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 ...
0
votes
0answers
250 views

Why 7 Dc motor but not 14?

Hi everyone! For my graduation project I'm tring to control 14 dc motors with my Arduino Mega 2560 trough IRF540 N-channel MOSFET. I aim to turn on and off the motor one by one, with Processing ...
0
votes
2answers
2k 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 &...
1
vote
1answer
43 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 ...
1
vote
2answers
633 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 ...
-1
votes
1answer
3k 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 ...
0
votes
1answer
75 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 ...
3
votes
1answer
125 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 ...
0
votes
1answer
908 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
votes
1answer
81 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,...
0
votes
0answers
66 views

I have a sensor but it doesn't respond

For those who think: TL;DR long story short: I want to measure the voltage output at certain temperature using arduino but do not get a signal. Not sure if it belongs here, but you folks know a lot ...
4
votes
2answers
139 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, ...
0
votes
2answers
709 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. ...
0
votes
0answers
40 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 ...
0
votes
1answer
92 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 ...
1
vote
2answers
465 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 ...