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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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21 views

How to make cheap plant monitoring system? [on hold]

I am trying to building cheap plant monitoring system. I am thinking of adding fingerprint scanner, because I want to ensure the plant's caretaker takes care of his plants by himself. (Please tell ...
2
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0answers
27 views

In what form should I store data in the cloud for a single device?

This question looks similar to What IoT services are available for storing/sending/publishing generic data in the cloud? though I haven't found a suitable answer yet. I'm building a light/temp/...
2
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1answer
22 views

LoPy4 Gateway (LoRa RAW) connection to Raspberry Pi and AWS Cloud

I am attempting the following setup: Sensor--> I2C--> Pycom LoPy4(Node)-->LoRa-RAW-->Pycom LoPy4(Nano Gateway)-->RPi-->AWS I have established the LoRa RAW connection between the two LoPy4s, now I ...
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1answer
31 views

How to control an on/off switch with raspberry Pi 3(perhaps using Radio)

So I happen to know some python to turn lights on and off in rpi3. Also to automate my home I know how to use relay boards. But the problem is that I have one rpi3 and the light which I want to ...
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0answers
28 views

ESP8266 and MQTT not working with new router [closed]

Got a new router from the ISP and my ESP8266 NodeMCUs are causing problems, they need very long to connect to WiFi (3-4 mins), which wouldn't be that big of a problem, but they also don't connect to ...
2
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0answers
31 views

Google Home API Integration

I have a project that I want to start on that involves Google Home and a custom light system. I currently control some lights in my apartment VIA a website but I want to be able to control the lights ...
1
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1answer
81 views

Water meter reading using LORA

We need to get reading of meter using LORA. Previously, we have used NodeMCU with Wifi module but it contains short range. We need long range which will be around 10 km to 20 km, So we must need to ...
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0answers
48 views

How to connect Raspberry PI 3 Model B to BLE Motion Sensor

I'm trying to connect my PIR motion sensor using gatttool and is giving me this error: pi@raspberrypi:~ $ sudo gatttool -t random -b B8:7C6F:1A:D8:24 -I [B8:7C6F:1A:D8:24][LE]> connect Attempting ...
4
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1answer
47 views

remotely update a raspberry pi with limited data

What's the proper hence best way to push updates to a Raspberry-pi with a limited Mobile Data Cap (1mb/ day). My first plan was to set up a Git repository and pull files from it once a week for ...
3
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1answer
89 views

How can I use Raspberry Pi to communicate with my Z-Wave gateway?

I am quite new to Z-Wave. I have a gateway, 2 z-wave sockets and 3 light switches. Everything comes from Keemple brand if that helps. However, using Keemple I cannot automate things the way I would ...
2
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1answer
78 views

Error occurred in installing ThingsBoard Raspberry Pi

I am installing ThingsBoard on Raspberry Pi by following this guide. It gave me an error when I tend run installation script in second last step: Run installation script: sudo /usr/share/thingsboard/...
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1answer
43 views

Installing drivers on Windows 10 IoT Core

First off, if this is the wrong Stackexchange site, please let me know so I can ask on the correct site. I'm contemplating installing Windows 10 IoT Core on my Raspberry Pi model 3B+ (so ARM platform)...
2
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0answers
39 views

Re-link Google Home Account with Assistant Pi on Raspbian

I installed the Google Assistant on a Raspberry Pi 3+ and it works perfectly. I see the Raspberry in my Google Home App and I can configure some features. However, by mistake, I have unlinked from ...
5
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2answers
89 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 ...
2
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0answers
80 views

What is the most safe and easy way to send a command to a remote Raspberry Pi? [closed]

I would like to send a command with some predetermined number of arguments to a Raspberry Pi and get the output back from it. I was thinking of using restricted ssh key but was wondering if that is ...
7
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4answers
454 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 ...
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0answers
95 views

Transfer data from Python Script to the Cloud using Node Red [closed]

I am running a Python Script on a Raspberry Pi to get the data measured by a Smart Plug (voltage, current, energy, power). This data is being printed on the terminal of the Raspberry Pi, but what I ...
2
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1answer
716 views

Communicate with MQTT over LoRa

I have two Raspberry Pis with a LoRa module each (Microchip RN2483, connected over serial). How do I tell MQTT (in Python) to use the LoRa motes (/dev/ttyAMC0) instead of Ethernet or Wi-Fi?
2
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1answer
40 views

How to store non-volatile data (an ID) inside a passive physical object?

I'm starting a project that evolve some kind of multiple small physical IoT objects that can be plugged dynamically to a wood board and trigger some leds. My question is so simple that I'm afraid of ...
5
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1answer
69 views

How to add resistor between two connections on breadboard [closed]

I am trying to replicate a circuit-diagram for my Raspberry Pi and DHT temperature & humidity sensor. I noticed that the author of the tutorial added a resistor between two connections (see orange ...
1
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1answer
57 views

How to implement out-of-home when developing an IOT device?

I have a Raspberry Pi that tells you through web sockets and a sensor the amount of electricity you are spending in real time. I created an iPhone app as a front-end that basically just paints the ...
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0answers
257 views

Unable to configure nrf24l01+ with Raspberry Pi 3 B+

I have a new Raspberry Pi 3 B+ model. I also bought a few nrf24l01+ modules. I hooked up one of the nrf24l01+ modules to my RPi with these connections: RPi | nrf24l01+ -------|---------- 3.3 ...
3
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2answers
72 views

How to send data collected by two different sensors simultaneously?

I have two different sensors connected to my Raspberry pi and I have to send the data to other device. The transmission of data is through wireless network. I have been asked to send the data in ...
4
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2answers
76 views

Building a special effects rig

I'm not sure if this is the best place to ask but I will give it a try. I build mechanisms that are used in commercials, tv shows, window displays, multimedia art etc. They generally involve ...
4
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2answers
294 views

Raspberry Pi emulate phone Bluetooth stack

I'd like to use my Raspberry Pi to emulate phone Bluetooth stack. I'd like to get it paired with car radio, simulate arriving/outgoing call, simulate SMS and the more alerts/notifications I can manage....
3
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1answer
85 views

Smart gate - where to start?

I have this idea of writing an app/something to make the gate, that we have in front of our house, smart. But I just don't know where to start. I assume that the gate uses IR because we have remotes ...
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0answers
104 views

Xamarin.Forms to ESP8266 Wifi moduleConnection [closed]

Am build new application for ESP8266. Then how can i connect my xamarin.forms application to esp8266 any reference and documentation for this. Already referred WIFIManager library in android many of ...
3
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1answer
72 views

Will my Raspberry Pi home automation hub be able to do all that?

I am setting up a DIY home automation, and just planning how my solution will look. I will have a Raspberry Pi 3 as the "hub" of the network It will run Node Red, MQTT (mosquitto), a DotNet website, ...
4
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2answers
723 views

Using Raspberry Pi as a Lora Node for a TTN setup

I already have a LoRa gateway that I made using a NodeMcu with ESP8266 and now I want to send data from a Raspberry Pi 3 through that gateway to the TTN. The first thing that I did was to connect ...
2
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1answer
396 views

publish image data to mqtt not showing

I am trying to publish image data to MQTT (CloudMQTT) with following code, but the data is not appearing on MQTT, don't even see any data on MQTT broker. import identity import json import paho.mqtt....
3
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0answers
97 views

greengrass ggc_user changeable? [closed]

While installing AWS IoT Greengrass for Raspberry Pi, there is a need to create ggc_user & ggc_group as mentioned in Greengrass developer guide step 9: sudo adduser --system ggc_user sudo ...
6
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7answers
337 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 ...
3
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1answer
56 views

Is static IP needed if using VPN to connect to IoT devices?

I have an IoT solution that I need to connect to from remote. I don't have access to open ports nor set static IPs on-site where the IoT devices will be hosted so I was looking for other solutions. ...
2
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0answers
67 views

Connect IoT devices to AWS

I have a Moxa I/O Remote connected to a Raspberry Pi running some scripts through pymodbus. I am using MQTT to publish & receive changes/requests in the I/O remote to a web service. The idea is ...
1
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0answers
75 views

Change Cloud URL using SimpleLink App for TI CC3200 SensorTags

I have some TI CC3200 Sensortags WiFi which I want to use out-of-the-box (without programming anything) Purpose I want to send the sensor information from the sensortags to an MQTT broker running on ...
4
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0answers
108 views

MOXA Modbus with Raspberry Pi – Can't get slave to work

I have two Moxa modbuses that I have daisy-chained together, and then connected to my network's ethernet port. The modbuses are hooked up to a control board with LED lights for the coils and buttons ...
3
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3answers
680 views

Options for cheap and “open” wireless thermometer/humidity sensors

I'm starting to explore IoT in my home, the first step being to connect a raspberry pi 3 B+ to a DHT22 temp/humidity, record DHT readings in a database which I then surf via a node server running on ...
3
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2answers
57 views

Using RBP as a broker between door locks & web server

I am relatively new to RBP3 and what it can do, but Ill try to summarize what I want to do and maybe I can get some pointers in the right direction. So the idea is to have a web app running on a PHP ...
5
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1answer
2k 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: -...
4
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2answers
78 views

SBC similar to Banana/Raspberry Pi with USB comms

I’m looking forward to develop a handheld device that could communicate with PCs over WiFi network, Bluetooth and USB. I have looked at the forums about Rpi, and they say it does not support Usb ...
4
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1answer
112 views

Using Raspberry Pi as USB bridge

I wanted to use my Raspberry Pi as USB bridge between multiple devices. We can assume that I want to connect my iPad which has POS software on it to my thermal printer. Most of star or Epson thermal ...
5
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1answer
1k views

Home Assistant on Raspberry Pi Zero W

I tried to install Home Assistant on a Raspberry Pi Zero W, following this blog post. I followed all steps, including starting the daemon as needed. WiFi is connected, and accessible via ‘ssh’ ...
5
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1answer
128 views

Can I use Android Things to detect a doorbell press via an RF Transmitter/Receiver pair?

I've bought a pair of 433MHz RF Tx Rx modules. I've been struggling to find any information on getting them working on Android Things (Raspberry Pi). My goal is to set up AT to detect the RF ...
2
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2answers
165 views

IoT and middleware

We are building a solution as described below: Arduino-based sensors read data and send it to Raspberry every second. Raspberry Pi processes these data and then communicates with a backend system ...
4
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1answer
116 views

Efficient Server- and Protocol structure for raspberry, smartphone and 3rd-party-device network

I am new to this forum and this field. I am looking forward to good criticism and tutorials/links/instructing suggestions to build a nice system with as less effort as possible while achieving all ...
0
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1answer
55 views

First steps to learn IoT with watering plants project [closed]

I am an experienced developper, and I want to learn IoT beginning with a small project. Automatic Watering the plants of my house. Here are the requirements: The project is for learning purpose It ...
6
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1answer
334 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 ...
2
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2answers
384 views

ESP8266 code using Python [closed]

I need to connect some sensors wireless using an ESP8266 which transfers data over my home Wi-Fi network from sensor to Raspberry Pi. Now, I was told on the Raspberry Pi Stack Exchange that when using ...
7
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0answers
120 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 ...
2
votes
1answer
136 views

Industrial Controller Vs Prototype Controller(Study level Controller)

What is the difference between industrial Controller and prototype(Study)level controllers or Raspberry pi/Arduino Vs. Industrial Controllers(PLC, NON PLC) controllers