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.
119
questions
0
votes
1answer
16 views
Building bidirectional people counting sensor
I am trying to build a people tracking sensor for counting the traffic of a specific area (building or shopping street). I need to detect people coming in or out of a room, also if two people are ...
2
votes
0answers
24 views
Secure External Network Control of a MQTT Server on a Raspberry Pi
I'm trying to build a home automation system using MQTT. I'm using a Raspberry Pi as the broker. Everything works great as far as controlling it when connected to the same network. But I want to have ...
6
votes
2answers
71 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 ...
2
votes
1answer
50 views
How to program my own smart home with raspberrypi 3? [closed]
Hello smart home enthousiasts,
I'm a software engineering student and I want to start a new project for myself. I really like smart home stuff, but I don't want anything to do with google or amazon.
...
2
votes
1answer
39 views
BLE Heart rate monitor slower without internet
I am working on a project that uses a raspberry pi and a BLE heart rate monitor. I am using the built in Bluetooth on a raspberry pi zero w 1.1, running the latest raspbian buster, using the bluez ...
2
votes
0answers
34 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
votes
1answer
31 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 ...
1
vote
1answer
35 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 ...
1
vote
0answers
32 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
votes
0answers
35 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
vote
1answer
95 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 ...
1
vote
0answers
54 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
votes
1answer
50 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 ...
4
votes
1answer
141 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
votes
1answer
90 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/...
1
vote
1answer
48 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
votes
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
votes
2answers
91 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
votes
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
votes
4answers
631 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 ...
1
vote
0answers
109 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
votes
1answer
1k 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
votes
1answer
41 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
votes
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 ...
2
votes
1answer
79 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 ...
1
vote
0answers
283 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
votes
2answers
77 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
votes
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
votes
2answers
348 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
votes
1answer
95 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 ...
1
vote
0answers
168 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
votes
1answer
74 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
votes
2answers
766 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
votes
1answer
492 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
votes
0answers
104 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
votes
7answers
367 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
votes
1answer
58 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
votes
0answers
70 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
vote
0answers
78 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
votes
0answers
115 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
votes
3answers
802 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
votes
2answers
58 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
votes
1answer
3k 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:
-...
5
votes
2answers
103 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
votes
1answer
131 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
votes
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
votes
1answer
132 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
votes
2answers
170 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
votes
1answer
117 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
votes
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 ...
