4 votes

Home automating lighting, while preserving light switches

To me it seems a lot easier to connect the pi outside your existing relay - essentially making the pi work as just another switch in parallel with the other ones on the circuit you want to control. ...
Bex's user avatar
  • 2,929
4 votes
Accepted

Grow controler - Which language?

You can achieve each of those things with Python on the Raspberry Pi. The key is in the Raspberry Pi Python library support for GPIO peripherals. For help on a particular sensor search for raspberry ...
joan's user avatar
  • 71.1k
3 votes

continue running after disconnect

If I turn the software into a daemon will that work? Yes. The problem is possibly two-fold: First, if you exit a remote shell with a process running in the foreground, that process will die right ...
goldilocks's user avatar
  • 58.9k
3 votes

How to know if DHT11/DHT22 is working?

I suggest you try with my example DHTXX code. Extract the zip to a directory and then compile/link with gcc -Wall -pthread -o DHTXXD test_DHTXXD.c DHTXXD.c -lpigpiod_if2 The start the daemon sudo ...
joan's user avatar
  • 71.1k
3 votes
Accepted

Unable to receive anything with 433 mhz receiver connected to Pi 2 or Pi 3

You can use my piscope to check reception and transmission. It is best to run piscope on a Linux machine networked to the Pi but it'll probably give acceptable performance when run directly on a Pi2 ...
joan's user avatar
  • 71.1k
3 votes

How does the RF/FM GPIO transmitter hack work?

There may be radio frequency bands in your country where very low power unlicensed radio emissions might be permitted (FCC Part 15 rules in the U.S.). However an unfiltered GPIO output won't ...
hotpaw2's user avatar
  • 271
3 votes

Raspberry Pi presence detection using Wi-Fi

Why not add a reservation to your phone/s ip address and simply do a ping via a cron job every few minutes. #!/bin/bash HOSTS="x.x.x.1 x.x.x.2" COUNT=10 for myHost in $HOSTS do ...
paj's user avatar
  • 311
3 votes
Accepted

Raspberry Pi presence detection using Wi-Fi

PhoneHome My phone acts differently, as all phones has some difference. A ping response only happens if the phone is awake. If the Pi is rebooted and the phone is in sleep mode, multiple pings will ...
bstipe's user avatar
  • 534
3 votes

Perform a task upon a voice command

You are going to need an internet connection, an OS, (I suggest Raspbian) and a microphone. The first step is to get the microphone set-up. Start by opening a terminal window and running lusb. This ...
Darth Vader's user avatar
  • 4,206
3 votes

Reed switch 3m away using a telephone cable (AWG 28)

The resistance of the cable is irrelevant in this case. Telephone cable would be suitable. The configuration of switch in http://elinux.org/RPi_GPIO_Interface_Circuits is the most appropriate. You ...
Milliways's user avatar
  • 60k
3 votes

Controlling Switches from both Raspberry Pi relay & Manual [Home Automation]

I think I found what you are looking for : In this exemple, we see that two switches are controlling one lamp, so toggling one of these switch will toggle the lamp. In your case, you need to ...
Technico.top's user avatar
  • 1,406
3 votes
Accepted

Controlling Switches from both Raspberry Pi relay & Manual [Home Automation]

The double switch method (also called a staircase switch) would be preferable, as it's easier to integrate with existing wiring, but it leaves your Pi without knowledge about the state of the load. ...
Stuggi's user avatar
  • 268
3 votes

Home Automation for my Whole Home

From your question I can try to deduce the following: You have a large home with ~80 smart switches/lights/things, etc. Based on the fact that you put your question in this forum, you want to control ...
MrChips's user avatar
  • 993
3 votes
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How should I interface a solenoid to a RPi GPIO input?

You asked, "How should I interface a solenoid to a RPi GPIO input?", and solicited some feedback on the schematic in your question: Does the optocoupler circuit look like it will work (...
Seamus's user avatar
  • 22k
3 votes

What is the best method to sniff bluetooth on a Raspberry Pi?

BlueZ is the official Bluetooth stack for Linux kernel-based family of operating systems. Its goal is to program an implementation of the Bluetooth wireless standards specifications for Linux. It has ...
ukBaz's user avatar
  • 1,457
2 votes
Accepted

Correct wiring for 433MHz transmitter/receivers?

You will to need to measure the voltage yourself. No one can guarantee the modules you receive will be as illustrated or the same as theirs. If you power the receiver from 5V or more it is safest to ...
joan's user avatar
  • 71.1k
2 votes

Turn on TV without HDMI-CEC

Since your TV does not have CEC capabilities, and you do not wish to take your TV apart, your options are rather limited. Because, often, your "dumb TV" only has USB ports for debugging and for media ...
Mohammad Ali's user avatar
  • 2,383
2 votes

Redirect audio to another AirPlay device

Spent some time trying to configure Airplay through Raop/PulseAudio on the new Raspberry Pi 3 using Raspbian Jessie with very little success. I would highly recommend forked-daapd: This is a much ...
Nate's user avatar
  • 21
2 votes

How can raspberry pi remotely communicate with sensor?

If you want something on a light fixture that can both control and report the state wirelessly, I do not think there are any options that are going to set you back much less than ~$20. This is ...
goldilocks's user avatar
  • 58.9k
2 votes
Accepted

Irrigation Alarm System

Sorry, we do not do product recommendations on Raspberry Pi exchange. You are on the right track. GSM You can buy any GSM module that has SPI or UART. The cheaper the better you just need to send ...
Piotr Kula's user avatar
  • 17.3k
2 votes
Accepted

Tutorial to use Raspberry Pi to control wall socket switch

I think you're definitely not taking one of the easy routes! If you're wanting to make reversible changes to the light switch, that would really be the way to go. However, there isn't really any ...
calcinai's user avatar
  • 179
2 votes

Home automating lighting, while preserving light switches

Circuit that use the system of low voltage push buttons and latching relays usually come with a transformer or small power supply, e.g. 5V DC or 12V DC (but other voltages are also not uncommon such ...
Ghanima's user avatar
  • 15.9k
2 votes

Autorun Firefox in fullscreen-mode on startup

I've done this with chromium, should be similar for firefox. sudo nano start.py Contents of new file: import os os.system("chromium-browser --kiosk http://localhost/") Then edit bashrc sudo nano ~...
Tom Lee's user avatar
  • 33
2 votes

Home energy monitor devices

The open energy monitor site you've mentioned is possibly the best place to start for background reading/research. Ideas and snippets cam be used to roll ones own setup if inclined. This link ...
Azeo's user avatar
  • 21
2 votes

Are there any smart light bulbs that can be directly controlled from a Pi?

Dresden Elektronik - a German company makes a zigbee shield for raspberry called RaspBee, they also make RGBW led strip controller called FLS-PP they claim is fully compatible with the RaspBee. There ...
Dingo's user avatar
  • 121
2 votes
Accepted

Are there any smart light bulbs that can be directly controlled from a Pi?

The solution I've gone for is LIFX. The bulbs are widely available and well-known. But unlike other major options like Philips and Xiaomi, they really do seem to be well-designed for use without an ...
Matthew Exon's user avatar
2 votes

Use raspberry as a Apple home hub

Per justme-1968: no it is not possible. has been discussed many times. atv (and iPad) are the only real ways to get remote access and push notifications. pdlove followed up with: It's how HomeKit's ...
Iiridayn's user avatar
  • 121
2 votes
Accepted

Homebridge-ifttt-webhooks on Raspberry Pi 3

I take it you're struggling with the configuration rather than the actual installation, which is achieved by running npm i -g homebridge-ifttt as noted in the documentation. An example of the ...
Aurora0001's user avatar
  • 6,308
2 votes

Cannot connect to Tradfri light from raspberry pi

Maybe this is the cure of your trouble.... https://stackoverflow.com/questions/49554464/controlling-ikea-tradfri-lights-from-raspberry-pi/51758095 It solved mine.
Jacob Henriksen's user avatar
2 votes

Connecting RPi to 2 different networks

Yes, it is possible. The rpi loaded with raspbian (or any other GNU/Linux based distro) can be used as a router to connect different networks, only that technically there are a number of different ...
eftshift0's user avatar
  • 750

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