Questions tagged [wiring]

Items referring to physical wiring. For question to the wiringPi library use the tag wiringPi.

19 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2
votes
0answers
172 views

(Wiring) RPi 4B laptop keyboard

NOTE: Not that I've chosen a few wired keyboards, I'll accept an answer that explains HOW to (easily) wire a keybard to the pi - it cannot obstruct the use of a small fan powered by the GPIO. I'm ...
1
vote
0answers
68 views

making a DC motor spin both ways

I week ago, I got my raspberry pi, connected it to a DC motor, and made the DC motor spin using python. now, I'm trying to get the motor spinning both ways. I have tried but failed. What is the best ...
1
vote
0answers
679 views

RPi.GPIO + single channel relay + solenoid lock

I'm working on my first python/hardware project and I want to create a simple (or at least I thought it was simple) cabinet lock, which will lock/unlock when certain RFID tags are approached to the ...
1
vote
0answers
49 views

128x64 LCD install to Pi Zero W

This is my first Rasp project, so please be understanding. I have Raspberry Pi Zero W and 128*64 dot china LCD. I do not have any program done for the screen yet. When start my Rasp only backlight ...
1
vote
0answers
503 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,...
1
vote
1answer
468 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 ...
1
vote
0answers
40 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 ...
0
votes
0answers
14 views

Using Temp Sensor to Control Mains Water Valve

I have a complicated use case that I'm hoping to solve work a RaspberPi. I need to control a valve that turns on mains water from city service when a temperature sensor reaches the max allowable limit ...
0
votes
0answers
30 views

How to power this LED array

I have this infra-red LED array that I took from an old game camera. I would like to be able to incorporate this into a Raspberry Pi project (home security camera). Specifically I would like to turn ...
0
votes
1answer
35 views

Wiring an Omron Thermal Printer to a Pi Pico

I'm trying to connect an old Omron thermal printer (PRT-1 Z, companion of the 705CP Blood Pressure Monitor) to a Raspberry Pi Pico. The idea is being able to print something using the Pico. The ...
0
votes
0answers
718 views

ST7789 Display on Raspberry PI 3

I just got an ST7789 240x240 display and i can't get it to work with my PI. i'm using this library: https://github.com/DjamesSuhanko/Python_ST7789 i installed all the python dependency's When i ...
0
votes
0answers
166 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
32 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
1answer
248 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
3k 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 ...
0
votes
0answers
197 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 ...
0
votes
1answer
2k views

Raspberry Pi 2 and SH1106 OLED

Abandoned post by Unregistered user. I am trying to get a cheap SH1106 1.3" OLED from eBay working with my Raspberry Pi 2. Frm the eBay description, it says that it supports "I2C/IIC ...
-1
votes
2answers
449 views

RPi pin being tripped by static electricity?

I'm writing a program that will run a timer until the user plugs a wire into two ports and presses a big red button. At home, my program works pretty well, but when many people are in the same room, ...
-1
votes
3answers
249 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 ...