All Questions

Filter by
Sorted by
Tagged with
0
votes
0answers
2 views

Hardware Recommendation to Wirelessly measure Cat Wheel Revolutions

I'd like to attach a battery powered IOT Device to my Cat Wheel to measure the number of times it rotates across the afternoon. Not too concerned about what programming language is involved in ...
2
votes
2answers
24 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
0answers
12 views

python google maps gps robot rasPi [closed]

I want to use python to navigate a robot (using raspberry pi 3 , GPS module and google maps) from one place to another. If I have the coordinates of start point and give the coordinates of the end ...
0
votes
1answer
16 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
0answers
18 views

Is it possible to get Alexa to send a value to Node-red by schedule instead of voice

I am looking for help and advice on how I could get Alexa to send a value i.e. temperature to a machine running Node-red as a schedule rather than a voice command. It's possible to turn smart devices ...
0
votes
0answers
18 views

Does anyone know any magnetic connectors?

I'm trying to build a gadget with LED lights. The odea is to have separate pieces of lights which can be combined together and can be played around as LEGO. I would like for each piece to be joined ...
1
vote
1answer
29 views

MQTT Client as “Server”

I´m currently working on a project where I have some clients (ESP32) which should communicate over MQTT with my broker. It should be also possible to change some parameters with an app. The easiest ...
0
votes
0answers
22 views

Satellite Communication Protocols [closed]

I am hoping to gain some information on what protocols are used in satellite communication. Is all satellite communication adhere to one protocol? Does it adhere to different protocols for different ...
0
votes
0answers
16 views

How do I use my printer wirelessly? [closed]

I have a old xerox 3220 workcentre, but I'm not sure how to connect it to the internet... I just want it on my wifi network so it can be used wirelessly. I don't know much about it and it I might need ...
1
vote
1answer
29 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 ...
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
vote
1answer
21 views

What the OS used by Samsung smart TV UE46ES6300S

I have an old Samsung smart TV UE46ES6300S (Model 2012) and I want to start developing a test Application for it. I don't know which OS does my smart tv use, and which are the right tools to begin ...
0
votes
0answers
16 views

convert string type value to integer type getting wrong result

I'm working on a project where I use MIT app inventor's spinner to select some one of the numeric value like 250 ,1000. I'm sending this value to firebase database and from that receiving it in ...
0
votes
1answer
11 views

Sigfox Header Size

I can't seem to find if the header size for Sigfox. Looking at their website (https://build.sigfox.com/study) it says "The Sigfox uplink payload is limited to 12 bytes (excluding the payload headers). ...
0
votes
0answers
7 views

Fs1000a generic cheap RF transmitter compatibility with Hc12 receiver?

I have build a door sensor where arduino uno reads reed switch and transmits RF 433MHz signal to other Arduino uno connected RF receiver. I am using rcswitch library and cheap ask/ook transmitter/ ...
0
votes
0answers
15 views

Connecting ESP32 to Google Cloud IoT Core (using Google Cloud IoT Device SDK and ESP-IDF

I am trying to send data from Google Cloud Firestore (via Google Cloud IoT Core) to an ESP32 device. I have follwed this guide, using the option of using Google approved way of Google Cloud IoT Device ...
1
vote
0answers
23 views

Fitbit keeps dying when reacing step goal when >~50% charge

I have a Fitbit Alta and when it's around 50% charged (according to battery screen) or less and I get my step goal I find I can not turn it on. When I plug it in to charge, it shows the logo and the ...
1
vote
1answer
40 views

Using LoRa as a www link

I am new to IoT and LoRa, and still trying to grasp the scope and capabilities after discovering a whole technology I never knew existed. I have read some about LoRaWan and IoT, but am confused about ...
1
vote
1answer
32 views

Windows IOT cmd - Delete unplugged (hidden) Ethernet adapters

In Windows IOT - is there an option via command line to delete unplugged (hidden) Ethernet adapters? My issue is, when I am plug in an USB-TO-ETHERNET device adapter, it is have the name, lets say, "...
0
votes
0answers
14 views

Not getting data from nodemcu to the firebase

I've done almost everything to get the data from nodemcu but nothing happened. I tried by changing the fingerprint. I have also used project secret and copy it in FIREBASE_AUTH part. I also ...
0
votes
1answer
13 views

how fast can i send data to firebase from nodemcu 1.0?

I was sending some variable value to the firebase database I have created how fast can I send it.what would be minimum time interval between two values nodemcu can send and fire base can receive? I ...
2
votes
2answers
24 views

Board with usb-c 3.1 for data transfer

I want to set up a simple NAS at home, I've seen some options on the internet but they're either too complex or use a usb dock for the drive, which limits the bandwidth. I was wondering if it is ...
2
votes
1answer
33 views

Can AVR microcontroller be used in commercial products? [closed]

I'm working on a startup and I have come to know that AVR is closed source so I wonder if I can use their chips inside my commercial product?
0
votes
0answers
12 views

How to connect Sonoff mini in a two switch one light circuit with missing neutral wire?

I have a Sonoff mini and I’m stuck on trying to connect to my two switch one light circuit. Here is the manufacturer diagram And here is my home connection (without Sonoff mini): Switch 1 (red ...
2
votes
1answer
29 views

Documentation similar to open API for IoT protocols like MQTT for open data sharing

A lot of documentation exists for RESTful APIs via tools like Swagger. But I am on the search for a Documentation tool or something in the likes for open data sharing for protocols like MQTT or OPC-UA....
0
votes
0answers
18 views

eSIM - technology issue?

Let's consider a SmartWatch which has eSIM inside. If the carrier is not supporting it, is there a chance that I can activate it? Details: the SmartWatch in question is a Samsung one. My carrier is ...
0
votes
0answers
19 views

Far field microphone is required

I am looking for Far field microphone technology. I need line level Output. I do not need natural language processing using alexa or anything. I Just need clean audio out at line level. Looking to ...
1
vote
2answers
52 views

Sending an image to the cloud [closed]

I have a BG96 Arduino Shield module connected to an OpenMV Cam H7. I need to send the image to the cloud for further processing. I send each pixel of the image, and I can use HTTPS, UDP or MQTT. My ...
3
votes
0answers
22 views

can a shelly switch control a different shelly relay?

I have a standard wall switch connected to an input on a Shelly relay, call it A. I have a second Shelly relay (call it B) across the house that has a light connected to the relay output. Using the ...
2
votes
0answers
42 views

How to decouple the hardware components

Is it possible to make the connections between the Raspberry Pi , Motor Controller and Stepper Motor connected wirelessly? As you can see above, I have 1 Pi (connects to the Motor Controller), 1 ...
0
votes
0answers
15 views

Why is the Trådfri Remote obligatory for pairing bulbs with gateway if it uses Zigbee Light Link?

If I understood it correctly, Zigbee Light Link (ZLL) networks function without a coordinator node (as opposed to Zigbee Home Automation networks where it is mandatory). Before I learned that I ...
0
votes
0answers
20 views

CC3200 CCS: Help connecting to IBM WATSON IOT MQTT

I need help connecting a cc3200 to IBM watson using code composer studio. I've found this page. But i don't understand,do i only need the certificate file it shows,or are other files needed too ? ...
2
votes
1answer
16 views

How to tell if a Zigbee device is a Zigbee Router

The Zigbee spec defines the types of nodes: coordinators, routers, and end devices. I'm looking to buy some Zigbee devices, but I can't find in the device manual if the device is a Zigbee Router or an ...
1
vote
1answer
22 views

Can I use the CC2531 Zigbee sniffer with a ESP8266 via serial, no USB involved?

I have a CC2531 connected via USB to my server to read/control some Zigbee devices. I use the version with external antenna. I found that the location of the server is not optimal and I would like to ...
0
votes
0answers
16 views

Mqtt node connected to multiple router

I have NodeMcu which I wanted to work as MQTT node, and I will have 50 nodes which will connect to routers(total 3) where these routers are connected to the main router through LAN. For a broker, I ...
2
votes
0answers
39 views

ESP32-CAM Camera init failure, SCCB write failure

I can successfully flash my ESP32-CAM to do the blink demo but when I try to run the code below I get the following error (b/t the asterisks/bar.) It seems the "Serial Camera Control Bus" (SCCB) is ...
1
vote
0answers
16 views

Main function doesn't debugging (openocd, stm32)

I use STM32F4-DISCO with ST-Link/v2-1 and openocd for debugging. Debugging does in VS Code with Cortex-Debug extension. When I set breakpoint at main function, debuggin process freezes, stops or ...
2
votes
0answers
26 views

Dimmable LED bulb

I am redesigning our bathroom and currently looking at two different light sources 12V LED spots with a dimmable LED driver (via 1kHz PWM) Some sort of chandelier with a E27 (bulb). I want the bulb ...
0
votes
0answers
21 views

Can someone guide me in the right direction of a logging stack for a Linux IoT device?

Let's say I have a Linux IoT device running full Ubuntu Server 18.04, and that the "firmware" is written in python. What are my options for building a logging stack, i.e. writing logs from the ...
3
votes
4answers
50 views

Provisioning and deployment of applications to IoT devices

I have a small growing fleet of IoT devices (upboards). They are all connected via ethernet to a server. Each device runs the same set of applications (java, python, nginx, ffmpeg) with their ...
2
votes
0answers
29 views

SSID and Password Updates OTA ESP32

I am trying to build an application like Wemo App for learning purpose and I am stuck at a place. I am using ESP32 for this learning. In the future, it can be ESP8266 or any other. In the wemo device,...
1
vote
0answers
28 views

High level architecture for cloud/iot solution with multiple customers/users

We're at the early planning stage for a new cloud IOT solution and i'm looking for some guidance or direction for the high level architecture for our use case: Assume we sell 10,000 edge devices to ...
2
votes
0answers
23 views

How do I store device “trigger” configurations in the cloud?

One of my spare time projects is an automated irrigation system. I realize I'm not the first one to do this and that there is a large number of similar projects out there. However, I'm doing it for ...
1
vote
1answer
29 views

Linky - EDF - Backfeeding feature

In France they are deploying Linky Line Meters. If in a future state energy store/home energy production becomes more mainstream, are there built features of this device to measure current that is ...
11
votes
4answers
4k views

Are There Energy Monitoring Smart Plugs That Don't Compromise my Privacy/Security?

It seems like every Smart Plug I see on Amazon (including well-reviewed ones) require me to sign up, giving a lot of device, location, and personal information to a company I don't know or trust (...
1
vote
1answer
18 views

Cayenne IOT widgets greyed out using ESP8266 NodeMCU-12e

I'm using an ESP8266 NodeMCU-12e, connecting to Cayenne IOT platform. Most things work fine (I can update most widgets using virtual channels), but some widgets are unavailable (greyed-out), or simply ...
-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
3answers
53 views

Advise on device to use when tracking a moving vehicle and pushing data to an API

I need to determine when a van leaves or enters a geofence range, and alert a system on my side - either via an API call or email sent - so that I can digest that data for later. My blocker is finding ...
3
votes
0answers
43 views

Google Home act/listen on own response

Is there a way to make Google Home act/listen to its own response? For example, if I ask: if it is gonna rain tomorrow ---> if the response will be yes i.e. positive ---> I will set next action ...
1
vote
1answer
38 views

Testing range for WLAN IEEE 802 11b/g/n

Are there any standardised test standards to test the Wifi Range of my ESP32 inside of my products enclosure. I want to know what range(s) it can operate so I can provide recommendations to users of ...

15 30 50 per page
1
2 3 4 5
33