Questions tagged [raspberry-pi]

For questions related to using the Raspberry Pi in IoT applications or solutions. Questions about a software or hardware issue with Raspberry Pi are usually more appropriate at Raspberry Pi Stack Exchange. Programming language questions are usually more appropriate at Stack Overflow.

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27
votes
3answers
625 views

What are the best security practices to secure a remote IoT camera?

I have done a bit of home automation such as building a remote camera that can be turned on via SSH locally and publishes images on a Raspberry Pi run Linux server. I'm curious, though, as to what ...
25
votes
6answers
3k views

Is there a big jump between prototyping on a Pi, and using a microcontroller?

This question asks, amongst other things, if there is a big learning curve between using Python on a Raspberry Pi to prototype an endpoint, and using a microcontroller. Clearly there is a big ...
13
votes
2answers
814 views

Which IoT platform should I use for low-energy temperature sensors to be powered by battery?

I'd like to setup two temperature detectors: one outside and one inside my house, in order to compare temperature and act on the difference (opening/closing the window for example). The issue I'm ...
12
votes
4answers
2k views

Securing 433 MHz wall light switch

I'm planning to use a simple light switch, that is placed on the wall. The switch gets power from the battery or piezo and sends unique sequences of data (on on- and on off-events) over 433 MHz to the ...
12
votes
3answers
7k views

Mosquitto on Raspberry Pi refuses connection after changing log settings

In my ongoing endeavors to get my Raspberry Pi to command my stuff I set up a Mosquitto MQTT broker. In the base settings everything went reasonably fine. I could post test messages with the publish ...
12
votes
3answers
941 views

How to efficiently control my dumb TV via Alexa?

I have a more or less dumb TV (Toshiba 42SL863G) and home cinema system (LG HX806SG) which I want to control via Alexa voice command. At least switch them on and change into either TV or home cinema ...
11
votes
3answers
5k views

How to connect “io-homecontrol” skylights to a Raspberry Pi?

Scenario I want to control my remote controllable skylights with my Raspberry Pi. The windows were installed a few years back and come already with the remote capable io-homecontrol technology, which ...
11
votes
2answers
261 views

Has anyone designed a custom IoT wall switch?

Are there any custom IoT wall switches designed using ZigBee, weave, Thread, etc. which have the ability to customize its use without forcefully imposing the use of a proprietary gateway or app? I ...
11
votes
3answers
577 views

Easy to use bidirectional people counter for one location

I am looking for a bidirectional people counter for the entrance of one location to start. I am just testing some of my own ideas with the data generated by the device. The device needs the have the ...
11
votes
1answer
8k views

mosquitto_sub “connection refused” on Arch Linux

So I installed mosquitto and mosquitto-client on a Raspberry Pi running Raspbian Jessie through apt-get as well as mosquitto on another Pi running Arch Linux through pacman. On Arch the client utils ...
10
votes
3answers
3k views

Is a range of 50 km+ possible in LoRa?

I read this article which said I could get upto 50 km with a LoRa module. But when I read the product description it says the in-built range is only 16 km, so I obviously need an antenna. But what ...
10
votes
2answers
6k views

Good microphone for whole room (without Internet)

I'm currently working on a smart home with voice recognition and I'm looking for a microphone that I could use for a whole room. What kind of microphone should I be looking for? What does the Amazon ...
10
votes
3answers
724 views

Power reduction for Raspberry Pi GPS/GSM tracker

I've recently built a fully functional IoT GPS/GSM tracker with a Pi Zero for a college project and now that it's finished and done with, I would like to minimize the current draw of the entire system ...
10
votes
1answer
385 views

Would RPI 3 serve as IoT server with MQTT?

I answered to the below linked question and started to think, what are the hardware specs for running an IoT stack of for example MQTT over LoraWan? Would Raspberry PI 3 survive or not? I do not care ...
10
votes
2answers
627 views

Cheap video streaming platform using Raspberry Pi

I have a questions as stated in title - I hope it will not be "primarily opinion based" since I wanted to ask you if what I have in mind is even doable. I want to create network of couple cameras ...
10
votes
1answer
351 views

Why does Docker reduce power usage on an Internet of Things device in this benchmark?

I've been interested in the applications of Docker on IoT devices such as Raspberry Pis. After reading A Performance Evaluation of Container Technologies on Internet of Things Devices, I was slightly ...
10
votes
1answer
395 views

Robust GPS + Internet - Best option?

Please consider the following: I am looking to build a device that will be placed in a vehicle as it drives through heavy wooded areas, potentially far away from any mobile reception towers. The ...
10
votes
3answers
1k views

802.11 action frames send and receive in software

Is it possible to gain access to 802.11 action frames TX/RX from software? There's a proprietary protocol based on vendor-specific action frames called ESP-NOW for ESP8266 and ESP32 chips, and I'd ...
10
votes
1answer
664 views

Connecting a sensor to ZigBee

I am planning to measure water level in a well, which is about 10 m deep with maximum water level up to 5 m. My plan is to use ultrasonic sensor HC SR04 to measure depth, transmit it via ZigBee to a ...
10
votes
1answer
136 views

Need Suggestion HD Camera to be integrated with Wifi module

I am working on one of my IoT project which needs to wide angle HD camera modules to integrated with Wifi Modules (open to Raspberry Pi, NodeMCU or anything else). I have checked various options but ...
9
votes
3answers
3k views

How to protect Raspberry Pi from attack in an IoT setup connected through a Broadband network?

The Setup: I have a Raspberry Pi as the master node which is connected to the internet through a broadband connection, the raspberry pi connects several sensors and other microcontrollers. The Pi is ...
9
votes
3answers
199 views

How to map the identity and control of slave devices behind the programmable logic controller?

In the area of industrial internet of things, there are so many industrial slave devices behind the programable logic controller, they are not given any ip address or identity, how would we to map ...
9
votes
1answer
2k views

IOTA on Arduino or Raspberry Pi or Similar Board?

I'm new to the world of IoT, I don't even have an Arduino or similar board yet... but I am very interested, especially with cryptocurrency such as IOTA making such things potentially profitable. Sadly,...
9
votes
1answer
341 views

Is this architecture feasible and flexible?

I'm having a but of trouble making sure my project really is feasible. What I want to archive: Control my Senseo coffee machine via internet. It boils down to simply controlling 2 buttons. First ...
9
votes
1answer
662 views

How to get Google Home assistant to read a value from the Internet?

Using IFTTT, I am able to send POST REST requests, which then it is able to flip the lights on/off on my Raspberry Pi. I can make a GET REST request (using postman) to get the value of the light, ...
8
votes
3answers
1k views

What are the limitations of our own build Echo using Raspberry Pi?

I'm trying to build my own Echo device. I found the GitHub repository here and some YouTube tutorials. I would like to know what are the limitation of this. Will this allow me similar functions that ...
8
votes
1answer
373 views

Confused about which technology to use in Smart Home System

In my college project (Smart Home System) there's a functionality in which if someone knocks on the door an image has to be displayed on a monitor (in a browser). I am implementing the door knock ...
8
votes
3answers
2k views

How to access camera feed of Raspberry Pi out of a local broadband network?

BACKGROUND The current setup I have for the Raspberry Pi is: USB Webcam -> Raspberry Pi -> Netgear Router -> Local ISP -> Internet My ISP gives me a captive portal through which I can ...
8
votes
1answer
772 views

How to Use Alexa & Raspberry Pi switch things wirelessly?

I wanted to use my Amazon Echo Dot to connect to my Raspberry Pi, and have it turn on switches wirelessly. What I have done: I have been able to use Makermusings's Fauxmo and a relay board to "trick"...
8
votes
1answer
705 views

Connecting web app to IoT AWS

I am using Raspberry Pi as a web server this web is to control CNC machine as you can see in the following picture. (I took it from git hub) I can enter the g code manually or I can upload the g ...
8
votes
1answer
308 views

Control arduino via MQTT

I working with several arduino board and now I need to control them via a web interface. Via web interface I want to activate GPIO. I have two ideas: Each arduino acts as web server and I can ...
8
votes
1answer
631 views

IoT Setup: Bluetooth Sensor -> IoT Gateway -> IoT Platform

I want to get started implementing IoT stuff. I do not have experience with it so far, but am learning fast. I am imagining my setup as follows: Proposed Setup Different wireless sensors (...
8
votes
1answer
180 views

Unable to receive RF signals from a remote using a RF receiver

Problem I am unable to receive the signals sent with a KaKu APA3-1500R remote with a RF receiver connected to a Raspberry Pi 3. Hardware -RF Receiver (in Dutch) -KaKu APA3-1500R (in Dutch) Additional ...
7
votes
3answers
1k views

In IoT, Is it necessary to involve single-boards such as Raspberry Pi as the only communication devices?

Are single boards always necessary when implementing an IoT connection? Can they be substituted by normal smartphones in, let's say, a business setting so as to communicate to POS/Internet-enabled ...
7
votes
3answers
1k views

Communication Between Server and Raspberry Pi

I am working on my home automation project. I have a server on digital ocean. I want to put my php code on that server and that server will connect to my Raspberry Pi. How can I pass messages between ...
7
votes
2answers
2k views

Raspberry Pi to send sensor's data to server continuously and receive commands from server

I would like to design a system using Raspberry Pi that sends the sensor's data to server continuously and receive commands from server. Will MQTT suit my needs ? Is there any way to do so if I use ...
7
votes
2answers
351 views

Local and distant MQTT communication

In my project I have a set of sensors in a local network that should communicate with a Raspberry Pi 3 and then with a distant MQTT broker. Since I'm using ESP8266 for the sensor nodes I thought I ...
7
votes
4answers
2k views

Which IoT platform to visualize real-time and historical sensor data?

In order to prepare some tutorials for my students, I am working on a few DIY electronics projects in the field of IoT. I want to use ESP32, ESP8266, Arduino Uno, and Raspberry Pi. I am more deep on ...
7
votes
0answers
172 views

Connecting air conditioner to Apple's HomeKit

I'm planning to connect my air conditioner to Apple's HomeKit app. At first I searched for ways to do it, but I couldn't find a solution that would work for that project. As I've found, Apple ...
7
votes
0answers
348 views

Power Consumption Benchmarks of Different Android Things SoMs?

I'd be grateful if anyone could publish some results of some (even one is good) Android Things compatible SoMs (System On Modules, see here) power consumption benchmark (data for idle, and under load, ...
6
votes
7answers
595 views

How to detect desk occupancy in office

I'm working on a POC to try and find desk occupancy in an office. The aim is to identify which desk is occupied and how many are free and where are the free ones. Also I would like to identify who is ...
6
votes
2answers
95 views

Internet Connectivity at the sea

I am building a project which involves the application of geo-fencing at the international borders. An alert is received when the user is near the border. an email is sent to the coastal guards as ...
6
votes
1answer
5k views

mosquitto_sub: command not found

I'm using a raspberry pi image that has the mosquitto broker installed. To troubleshoot, instruction was to run: pi@raspberrypi:/ $ mosquitto_sub -v -t "gateway/+/rx" However that resulted in: -...
6
votes
2answers
93 views

Encrypting sensor data on Raspberry Pi?

I am sending sensor data between two Raspberry Pis via lora. I am using two Lora Radios and NOT using a LoraWan network like The Things Network. How should I encrypt my data? Are there any open source ...
6
votes
1answer
42 views

Cannnot send from arduino to raspberry pi via LoRa

I am trying to send messages from my arduino to my raspberry pi. But I don't understand why the pi isn't receiving the messages. On the arduino side Im using an arduino UNO with a Dragino Lora/GPS ...
6
votes
1answer
55 views

Connect raspberry pi with 4G

I have a robot (use raspberry pi 3) outside my home (no internet connection there) and I'm with my laptop at home and I want to see the graphical environment (with all applications it has) of ...
6
votes
1answer
93 views

Synchronized data between Hardware's storage and Server's database

I saw in China's bus system, that there are devices inside the bus which can handle e-payments. The process is something like this: Passengers come in the bus. Passengers use a QR-code in their ...
6
votes
1answer
205 views

Creating a Tor 'hidden service' on Windows IoT Core

The Background I'm prototyping some basic home automation software using Windows IoT Core and Azure. I have built a Windows Universal Application that sends data to a Web App hosted in Azure via Web ...
6
votes
1answer
556 views

How to register an IoT device to a user account

I'm designing on an IoT device that connects to a web server and publishes/subscribes to the MQTT service. Users download an iOS app to setup/register/use their device. Question: What's the ...
6
votes
1answer
1k views

Windows 10 IoT Core will not install onto my SD card / Raspberry Pi 3

I tried to install Windows 10 IoT Core onto my SD card using Microsoft's IoT Dashboard. I fill out all of the fields then it says: Downloading Windows IoT Core Download Complete. Then it says: ...