Questions tagged [sensors]
For questions about simple IoT devices that can only monitor the physical world and report these observations. Examples are devices that just monitor the state of your lights, radiator settings, power plugs, fans or door locks. If the device is able to change those settings use the tag [actuators] or a more specific one.
102
questions
2
votes
2answers
31 views
How do I minimize cellular data usage for my embedded project?
I have an embedded project that is transferring data from the device to my server over a TLS cellular connection. The device needs to communicate with the server only when the sensor captures some ...
0
votes
1answer
17 views
Bluetooth Input Hub
I am wondering if anyone knows about some existing 'off the shelf" hardware options where some device could connect to this Bluetooth "Input Hub" where this hub can have inputs plugged into it and any ...
0
votes
1answer
32 views
How and how well can we use IoT to prevent the spread of Coronavirus by assuring essential precaustions outlined by healthcare experts?
The idea is to how and how well can we assure to prevent the spread of the disease. Here are the very basic precautionary steps to take in order to prevent the spread of Coronavirus for the general ...
-1
votes
1answer
44 views
Any info on where to get a water sensor with wireless connection [closed]
Am currently working on my final year project and am in desperate help with a sensor I need a water sensor that can connect wirelessly to a database.
2
votes
1answer
42 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 ...
1
vote
0answers
28 views
Which conferences and journals are notably trusted in the area of wireless sensor networks?
I am trying to get into the field of security concerning wireless sensor networks and found several good books and papers. But still this research topic is filled with fraud publications on ...
2
votes
1answer
28 views
Motion detector system that can be flashed remotely
I want to build a motion detector that performs a similar service to security
services, which notify me upon intrusion and provide video feed. The other main
requirement is that I can update the ...
6
votes
2answers
75 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
56 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.
...
1
vote
0answers
32 views
Read real time multiple sensor [closed]
In case you have multiple sensors (temperature, pressure, etc) up to 20 in a system with different electrical interfaces. What is the best way to read values simultaneously (at exact the same time ...
0
votes
1answer
71 views
How can I build a network of 5 smartphones that log accelerometer data into a computer?
I would like to build a network consisting of 5 smartphones (preferably Android, if it makes any difference) that log synchronized accelerometer data into a computer (like a data-logger). How can I ...
1
vote
1answer
40 views
how to network a receiver to a public server
My company use sensors on doors to track activity and access control on the doors for many sites throughout the UK. We need to log this activity by sending UDP packets from the sensor's receiver to ...
2
votes
0answers
60 views
Wanted: open source communicating, self contained, IoT source code firmware
this question could be borderline off-topic here, but I dare asking it still here for academic purposes. If it is off-topic, send me an email to basile@starynkevitch.net mentioning the URL of this ...
2
votes
1answer
29 views
What Is This IoT Project from Maker Faire Detroit? Connected Aloe?
At 2:27 in this teaser/promo video for Maker Faire Detroit, there's a brief clip of an aloe plant with some IoT type stuff. Presumably this is from either Maker Faire Detroit 2018, or a previous year. ...
1
vote
0answers
66 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
2answers
97 views
Solution for Outdoor Geolocation
I am new to the Internet of Things space and would like to inquire if a solution exists / could be created for real-time geolocation of an intermittently mobile object (not an automobile)? The ...
2
votes
0answers
59 views
What are the sensors available to measure liquid levels? [closed]
What is the best sensor which can be integrated with esp32 and can be used to measure liquid level in a tank. I used HCSR04 and JSN but both of them were not good. Are there any other recommendations ...
1
vote
0answers
103 views
How to communicate with IoT gateway with C# [closed]
I'm a C# web developer and I just started handling an IoT project. My goal is to have this set up:
PIR Sensors > IoT Gateway > Website (ASP.NET Web Application C#)
For now, I have PIR sensors (BLE)...
0
votes
0answers
40 views
Which Pressure sensor in Netatmo weather station
I have been trying to figure out which barometric sensor that is being used in the Netatmo weather stations (netatmo.com/weather) to measure the atmospheric pressure. I have disassembled the indoor ...
2
votes
0answers
32 views
Intrusion alert system for rugged environments iot, sensors [closed]
We are developing an IoT based intrusion alert system for the agricultural field.
The plan is to have vibration sensors installed over the fence on the periphery of agricultural land
Required ...
1
vote
0answers
45 views
Suggestions for vehicle sensors for parking lots [closed]
I am looking for wireless vehicle sensors that could be laid out on the ground to detect if a parking spot is occupied or not.
I am looking for sensors that can integrate with any of the IoT backends ...
1
vote
1answer
48 views
Remote sensor cloud connection
i'm just starting out in Arduino, IoT etc; I was given the Elgoo Uno R3 Arduino starter kit at the weekend and i've been trying to soak it up.
I would like to make a number of sensors for my van, ...
2
votes
1answer
38 views
Is Google home an IoT Device or a WSN base station?
They say Google home is an IoT device but it has the ability to control other devices like lights, Air conditioners, etc. (in smart homes) which is more like a base station in the Wireless sensor ...
1
vote
3answers
371 views
Send sensor data over internet to a server [closed]
I had a project planned on monitoring sensors. I wanted to read sensor data
over the internet. How should I proceed with the setup?
Any help is appreciated.
2
votes
1answer
96 views
Cannot connect SensorTag cc2650 to IBM watson IoT platform using their android app
I have SensorTag cc2650 from Texas Instruments with their android app installed in my Phone. I am getting an exception while connecting IBM Watson IoT. It worked fine with quick-start service but ...
3
votes
1answer
37 views
Are immersion sensors typically waterproof?
This may sound dumb, but are flood sensors, like the one from Xiaomi typically completely waterproof?
And if they are, would they work if installed vertically, facing with the side downwards, instead ...
2
votes
0answers
94 views
Open-Source Repositories that use IoT Sensor Data for Smart Contracts and Blockchain
In all honesty, I have only been reading blogs and papers about how IoT enabled Sensor data can be used with Blockchain along side with Smart Contracts for smart-industries, healthcare etc. but for a ...
2
votes
2answers
805 views
Custom sensor readings with Amazon Alexa
TLDR:
I want to query Alexa for the current humidity sensor reading by asking:
"What is the current humidity, Alexa?"
The answer should be similar to:
"The current humidity level is 56.7%"
...
4
votes
1answer
45 views
For my “switch on light with clap project ” will sound sensors detect other sounds other than a clap and switch on the light?
I am just a high school student who is trying to self-learn for my IoT home automation projects.Please excuse me if this question sound silly to you.This time I am working on this "clap to switch on ...
2
votes
1answer
84 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
58 views
LoRaWAN remote sensor node platform
Which platform can you recommend for a LoRa/LoRaWAN remote sensor node, which fulfills the following criteria?
Detects presence of people in 15-minute interval (e.g. with a RCWL-0516)
Reports the ...
0
votes
0answers
68 views
Pushing Processed data from RFID + Sensors to a Platform
I have some sensor nodes (Bosch XDKs) that send information to an MQTT broker and an application reads the information and stores it into InfluxDB. Simultaneously, I have RFID readers that scan some ...
2
votes
1answer
420 views
Dumb sensor vs smart sensor
Everytime when i read about the "Internet of Things" it is suggested that devices are smart but when it comes to an implementation of an IoT ecosystem, it is not so clear to me anymore. So i need some ...
8
votes
1answer
75 views
Sensors for a Validation Research
I've been searching for wireless sensors that could track the following metrics:
Location (GPS)
Heart Rate
Head Movement
Length of Steps
Skin Conductance
Pavement location
(relative location compared ...
11
votes
2answers
206 views
Is it possible to use a CO2 sensor to detect how many people are in a room?
I have MH-Z14 Carbon Dioxide sensor and have been using it to try and detect when a room may need some fresh air. But, I've also noticed that the sensor reading drastically increases when a human is ...
8
votes
3answers
102 views
Sensors under increased pressure
I am wondering how the DHT 22 (measures humidity and temperature) sensor would work under double or triple atmospheric pressure (rough calculations have been done but it will vary and the exact ...
1
vote
1answer
66 views
Would there be an IoT use cases where sensor and actuation are at two different locations [closed]
I am thinking of application that if there is fire or machine failure at remote location, then some action (like an alarm or emergency light) is taken at a different location. (Like a control or ...
2
votes
0answers
40 views
out-of-the-box sensor nodes ready for deployment [closed]
I am on the lookout for sensor-nodes that do not require any DIY or sensor interfacing.
Purpose
This is because, at times one might just want to setup an IoT Network without having to program or ...
2
votes
1answer
292 views
Adding Metadata within MQTT client in order to be available for querying in InfluxDB
Scenario
I wish to deploy sensor nodes that publish sensor data to a central MQTT Broker and then send this information to InfluxDB.
Requirements
Adding metadata to the Sensor nodes whilst ...
5
votes
2answers
60 views
Read I²C Sensor via openHAB
I am using a voltage sensor which communicates over I²C, a Python script is handling all the communication and logic in a Raspberry Pi. Since I want to switch to openHAB I am wondering how to read ...
5
votes
1answer
572 views
Thingspeak: message limit, update limit and bulk updates
I am looking at ThingSpeak for logging sensor data.
I would like to log three different variables at a frequency up one datapoint per second. This would be 86400 samples per day or 259200 values per ...
6
votes
0answers
151 views
Is a simple UDP messaging a good idea for IoT Sensor?
I am working with NB-IoT Modem - Quectel BC95 that will be used in a simple IoT sensor that will periodically (Once per hour) send measurements to our server.
Because of the restriction in place by ...
4
votes
1answer
61 views
How to decide how to select an endpoint device
This question is intentionally rather open ended, and potentially opinion based, but it is intended to act as a catch-all for the questions on how to select a device for a sensor/endpoint. Any ...
5
votes
2answers
387 views
How rapidly should the data from IoT devices be sent to the cloud?
I am configuring a Sonar Distance sensor to send data to a cloud.
But the problem for me now is: I do not know when to send the data to this cloud.
As far as I know, I could send the data ...
5
votes
1answer
43 views
Some type of movement sensor
I was wondering is there's a sensor or some type of sensor that would detect itself if it's been moved, say if I put the sensor in one end of the table and move it to the other end it will detect that ...
6
votes
0answers
2k views
Make ADT Door Sensors work with Ring security system?
Is there a way to modify ADT's Window and/or thin Door sensors in some way to work as door sensors for Ring's Home Security System?
I am transitioning from an ADT security system to Ring's, but am ...
3
votes
1answer
46 views
Possibility of integrating secure elements with sensor networks?
Assume we need to do a type of digital signature such as ECDSA with sensors used in sensor networks. So, is there a secure and possible approach to store the keys in these sensors?
For example, is ...
8
votes
2answers
217 views
How can I use End-to-end encryption in sensors network?
I have been reading about XMPP and its extensions. One of them called (XEP-xxxx: Sensor-Over-XMPP) which is really interesting.
I have read also about another XMPP extension which is OMEMO protocol ...
6
votes
1answer
99 views
Simulation tools for centralized, decentralized, or distributed wireless sensor network
I want to simulate the collision avoidance between different objects that use (IoT based) centralized, decentralized, or distributed wireless sensor network. What are free software available to ...
4
votes
0answers
46 views
Dashboard of historical data in iot_datasourse
I have historical data stored in an SQL database as date in the format (2017.10.27 12:00:25) and the corresponding temperature in the format (26.55). I am using the node iot_datasourse to show the ...
