Questions tagged [wiring]
Items referring to physical wiring. For question to the wiringPi library use the tag wiringPi.
100
questions
1
vote
1answer
64 views
Wiring GPIO pins to press hardware button on USB MOUSE
i have soldered out buttons and replaced them with wired in USB mouse.
Mouse itself is connected to device. Is it possible to wire those cables to GPIO in Raspberry PI model 2.
And control clicks via ...
1
vote
1answer
22 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
37 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
280 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
552 views
Raspberry Pi to Arduino Serial (UART Using GPIO Pins TxD, RdX ) Communication Not Working
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
53 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
26 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
102 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,...
7
votes
1answer
535 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
57 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
317 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
441 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
133 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
285 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
166 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
364 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
957 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
76 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
723 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
84 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
358 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
158 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
430 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
244 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
169 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
705 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
8k 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
78 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
106 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
297 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. ...
5
votes
2answers
24k 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
297 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
382 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
196 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
4k 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
574 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
6k 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
153 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
158 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
113 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
341 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
517 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
772 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 ...
