Questions tagged [wiring]
Items referring to physical wiring. For question to the wiringPi library use the tag wiringPi.
99
questions
1
vote
1answer
14 views
How can I get the image recorded from a rear-view camera?
I have a rear-view camera (NAVITEL MR250) which I use everyday. I got into image processing and I thought a good personal project would be to create a "self-driving car" (Quotation marks because I ...
1
vote
3answers
35 views
Can I safely add a switch between a fan connected to power/ground?
I've just got a small 5V fan for my Pi, but it is very loud, and I'd like to be able to switch it on/off.
Currently, the fan is just wired to 5V power and ground.
I know that I can use the GPIO pins ...
0
votes
2answers
119 views
How to wire a Raspberry Pi to a 16 channel relay module? It won't work
A am using working on a project that requires a camera analyzing some images and activating the appropriate GPIOs to control a relay board. I currently have a touchscreen display, a Raspberry Pi Cam ...
2
votes
2answers
412 views
Serial to Arduino totally non-responsive
I'm trying to connect my Arduino to my Raspberry Pi using the GPIO pins. I understand that the Pi uses a 3.3V signal while the Arduino uses a 5V signal so I bought a bi-directional logic level ...
0
votes
0answers
43 views
Multiple SDA/SCL | Getting 16x32 RGB LED to work with MCP23017?
I am close to completing a device which will have a 16x32 led matrix as well as quite a few lights/buttons/sensors. All these lights and sensors go through an MCP23017.
I am using the Adafruit led ...
0
votes
0answers
24 views
Motor-Potientiometer read and write, additional power source
I want to get and set values for a motor potentioneter ALPS RK16812MG from a raspberry pi. I found a similar approach here however, the answers in that forum suggest a different wiring with an ...
0
votes
0answers
65 views
Connecting Raspberry Pi to old found TFT display
I have an old car DVD player sitting around that has a fairly decent secondary TFT LCD screen (hannstar 721h440b19-a1) that I thought I could use with my Raspberry Pi 3 Model B.
I opened up the unit,...
6
votes
1answer
519 views
How can I wire a Raspberry Pi to an 8-relay board in a tidy professional manner?
I want to connect a Raspberry Pi to an 8-relay board, such as this one.
Together with ground and power this amounts to ten wires. One option to connect the two is by using female to female jumper ...
0
votes
1answer
45 views
DS18B20 device not showing
Things I've tried:
Replacing the DS18B20 twice (First one was a different brand than the other 2)
Using:
modprobe -r -a w1 w1-therm
modprobe w1 pullup=1
modprobe w1-therm strong_pullup=1
Checking ...
6
votes
2answers
302 views
Creating jumper leads from ethernet cables - connect multiple components
I've bought some crimpers and a dupont connection kit and I'm planning on reusing some old cat5 ethernet cables I have.
Is it reasonable to connect two devices to the RPi via the 8 wires in the cat5 ...
1
vote
2answers
335 views
How to use Solenoid Lock 12V DC
I'm new to this, and I can't see how to control a solenoid lock using raspberry (The wirings). I have an 8x AA Battery pack which is wired to output 12V. I don't know where to connect the black and ...
0
votes
1answer
117 views
Controlling button on YwRobot with Raspberry Pi
I am obviously new to Raspberry and Stack, but would be great if community can advice.
My setup is the following:
- YwRobot 545043 power supply (controller) connected to the breadboard and to the ...
2
votes
2answers
258 views
Do I need a resistor to wire my Pi Zero directly to a power source?
I want to connect my Pi Zero directly to a 5V 10amp power adapter (shown below) which in turn connects to a wall outlet. I know that with LEDs you can't just connect it directly to the power source ...
0
votes
1answer
153 views
How to connect more I2C sensors on top of a RPI shield
I'm struggling with a problem, how to connect more sensors on top of this raspberry shield => https://sixfab.com/product/raspberry-pi-nb-iot-shield/
The shields schematic can be found here and it ...
0
votes
1answer
324 views
How to wire up a LED Matrix with a Raspberry PI
I'm not sure how to wire up the LED Matrix corrctly. I followed the steps in this guide: https://github.com/hzeller/rpi-rgb-led-matrix/blob/master/wiring.md In this tutorial the matrix has 3 GND pins. ...
1
vote
1answer
771 views
Correct wiring for multiple analogue sensors?
I’ve recently embarked upon a project that I’ve wanted to do for a while. My overall plan is to have 3 planting shelves; each will have its own soil moisture sensor, water pipe and LED lighting. The ...
-3
votes
2answers
72 views
Can somebody please tell me how to wire this?
I litterally cannot find it anywhere on how to wire this
https://www.adafruit.com/product/2934
The only thing any of the pigrrl schematics show is connecting wires from b1,2,3,4 to pins on another ...
1
vote
1answer
645 views
How to wire an HC-SR04 without a breadboard?
I have a Raspberry Pi and a HC-SR04 integrated circuit for measuring distance. I have found many resources for how to connect the HC-SR04 to the GPIO of the Raspberry Pi, but because the HC-SR04 ...
1
vote
1answer
82 views
Wiring a RGB LED on to a Raspberry Pi
So I got a bunch of these LEDs and I can't seem to figure out how to wire them. This is what I'm working with.
I tried adding the gnd and 5v but it doesnt do anything. When i connect the Din to 5v ...
1
vote
1answer
345 views
How can I use Garage Door Safety Sensors with Raspberry Pi?
I am trying to use garage door safety sensors as a way of counting cars. From my understanding, if there is no object (car) between the sensors, then they output a 3.3V signal every 6 milliseconds. If ...
0
votes
1answer
153 views
Flow Meter connected RPI 3 wiring [closed]
Is the wiring the same from a RPI B+ to a RPI 3 to connect a the flow meter too? If you strip the connector to just bare ends from the flow meter what cables/connectors do you recommend purchasing for ...
0
votes
2answers
2k views
Potentiometer on 16x2 LCD, does it need to be connected to VCC?
I am following this Adafruit tutorial on 16x4 LCD, and I managed to make it work.
https://learn.adafruit.com/drive-a-16x2-lcd-directly-with-a-raspberry-pi/wiring
From this tutorial, the potentiometer ...
0
votes
1answer
400 views
How do I debug an LED strip that isn't working?
I've scoured the forums here and elsewhere and can't exactly figure out what my next step should be. I've followed this tutorial
https://tutorials-raspberrypi.com/how-to-control-a-raspberry-pi-ws2801-...
0
votes
1answer
232 views
Trouble with Flex Sensor and MCP3008
I'm working on a project currently, though things aren't quite working so I would like whoever's advice.
So, to put it briefly, I'm using a Sparkfun Flex Sensor and an MCP3008 hooked up via a ...
1
vote
1answer
158 views
Wiring a SNES Controller to pi3 gpio or tactile switches
I'm looking to build a super pi boy, in the original they use tactile switches. However, I'm not sure how to wire the tactile switches and make them work as a x b y up down left right etc. I'm also ...
1
vote
1answer
668 views
How do I connect this anemometer to a Raspberry Pi? [closed]
I want to connect an anemometer to my Raspberry Pi 3.
I'm trying to use the Maplin N25FR Wind Speed Sensor.
How do I connect it to my Raspberry Pi?
I found this picture online, but I don't ...
5
votes
4answers
2k views
“Blinking” relay by toggling pins between input and output
Edit for searches:
This question is about using a 5v relay with Raspberry Pi GPIO pins that outputs 3.3v.
There are a number of great questions below, read them through to understand whats going on. ...
3
votes
5answers
7k views
Controlling Switches from both Raspberry Pi relay & Manual [Home Automation]
I am currently working on Home Automation Project with Raspberry Pi, I am using 8 channel relay board for this, I can control switches over relay easily. But I want to operate them with pre-existing ...
-1
votes
3answers
70 views
Basic questions about inputs/outputs on a breadboard (Pi 3)
I have started my first basic project today and I have a few questions I couldn't find answers to yet or I just don't know how to search for any. Sorry if those questions seem a bit stupid, but I will ...
0
votes
1answer
104 views
How to wire a switch to turn on and off the power source on a Pi Zero?
I'm planning a project that involves a portable Pi Zero with a battery and I want to wire a switch that turns on and off the pi/battery. I'm not too experienced with hardware and I would like some ...
1
vote
1answer
266 views
What Circuit Should I Use to Hardwire Raspberry Pi to Doorbell?
I am trying to connect my raspberry pi to my hardwired doorbell in order to send a text message when the doorbell button is pushed. I have successfully sent the text message using a button connected ...
0
votes
1answer
2k views
GPIO Buzzer. Not sure how to do this
Buzzer (all it says on the back): 3 VDC, 15 mA, 75 dB
I have a simple breadboard circuit with a LED that works. I'm now perplexed (again, I know zero about circuitry) how to add a working buzzer. ...
4
votes
2answers
22k views
Using single 5V relay (jqc-3ff-s-z) - safety advice required
Above is relay I'm using and everything works as expected using diagram below.
I will add 1n4148 diode on IN line for safety and will connect VCC to power supply before Pi.
Can I use ground (GND) ...
0
votes
2answers
266 views
Are there any buzzers that work natively with 1 Model As?
I'm trying to follow the examples in this CanJam EduKit project -- see page 2:
I'm having enormous difficulty tracking down a piezo/buzzer that I could use for that project, a buzzer that:
Works "...
0
votes
2answers
374 views
When to set internal pin resistance at software layer
I'm trying to wire my Raspbery Pi 1 Model A (hereafter RPi) to a simple 6VDC buzzer and here is my best attempt:
So the 3.3V power pin from the RPi is connected to the breadboard's top-most rail via ...
0
votes
1answer
190 views
Turning on-off-on-off switches to normal switches and integrating with GPIO [closed]
I have the following on-off-on-off button that I purchased from Adafruit for use with my Raspberry Pi 1 Model A.
I'm trying to "bypass" the "on-off-on-off" functionality, and just make it so that its ...
3
votes
1answer
3k views
GPIO pin wiring for LEDs and their resistors
I have a Raspberry Pi 1 Model A and am trying to control an LED from an app that I will be running on it. The wiring I'm planning on going with is:
Even though thats a RPI 3 in the diagram above, the ...
0
votes
1answer
560 views
Is wiringPiSetup BCM or BOARD?
I am using WiringPi to simulate PWM output to my GPIO pins. My problem is that I converted from the regular Rpi.GPIO library to WiringPi. I used BCM as GPIO mode but now WiringPi uses BOARD. How can I ...
1
vote
2answers
5k views
How do I do a basic MOSFET switch with Pi?
I have my GPIOs doing PWM with pi-blaster.
Now I just need to figure out the wiring. I checked over electrical engineering, and found this question: https://electronics.stackexchange.com/questions/...
0
votes
0answers
151 views
Controlling M35SP-9T stepper with UNL2003
I would like to control a recycled stepper motor with UNL2003.
I bought a downloaded a sample script from here
Created a test circuit, and the controller is working fine with the 28BYJ motor.
I did ...
1
vote
0answers
31 views
Wired IR with CIRT1/2 for Calypso CA-1000
Is it possible to do IR over wire with a Calypso CA-1000 amp?
It has an IR receiver and wired IR in/out ports (IR out for daisy-chaining) and looks for CIRT1, 2, and custom codes.
I would like to be ...
-1
votes
1answer
157 views
Simple RPI3 / Garage Door help?
I have a very simple RPI3 / SainSmart 8 channel SSR setup.
I have GPIO18 set as out and wired to the relay board.
I can turn on the relay (at least its LED lights appropriately).
My issue is that it ...
1
vote
1answer
1k views
What would the wiring look like for the UV Sensor Breakout - ML8511?
I have a Raspberry Pi 3 Model B. I am planning to connect an ADC (analog to digital) converter called the MCP3008.
I will follow the diagram that is shown here (scroll down past the enabling SPI step)...
0
votes
1answer
110 views
Would this be the full list of materials to connect a ML8511 UV sensor to a Raspberry Pi?
I have the SparkFun ML8511/UV Sensor Breakout.
In order to connect this to a Raspberry Pi would I need any other materials besides the following:
A Breadboard
A MCP3008 for analogue to digital ...
3
votes
1answer
328 views
Strange I2C behaviour
First of all: sorry for the title, I don't know how to describe further...
Background:
I'm working with the RDA5807M FM receiver chip. It worked fine for at least one month now. I just had jumper ...
-2
votes
1answer
513 views
How can I connect this circuit (pictured below) to my raspberry pi without using the gpio headers? [closed]
I was wondering if anyone could tell me how to connect this circuit to my raspberry pi without using the gpio headers because I am trying to make a portable tablet with the raspberry pi 2 and the ...
3
votes
1answer
2k views
Raspberry Pi as Wiegand device - output Wiegand to receiver
I would like to build a Wiegand device from Raspberry Pi to output 37 bit Wiegand format data to Wiegand control unit receiver.
I don't want to read the Wiegand protocol on Raspberry Pi like from ...
1
vote
1answer
5k views
Wiring a 3 pin toggle switch to Raspberry Pi 3
I have this small 3 pin toggle switch - just toggles left and right - it has its three pins aligned left, center and right. No datasheet for it - not sure where it came from - most likely a starter ...
2
votes
1answer
737 views
What is the correct wiring using a break beam sensor with a Raspberry Pi 3?
I am looking to wire a break beam sensor to gather results and save them as eventually as JSON data. I am however totally new to hardware and believe there is an issue with the circuit.
I have the ...
3
votes
2answers
4k views
Wire Button Without Resistor
I saw a tutorial here that shows wiring a button without a resistor. I have heard that this is bad if you set the pin as an output by mistake and press the button because it shorts the pin to ground.
...
