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1500 questions
4
votes
1 answer
Nest cam fallback wifi
If wifi that my Nest camera is connected to goes down, can it reconnect to an alternative wifi? In other words if the "thieves" cut the broadband cable, but I still have a 4G router as a backup, would it work?
Caballero
- 143
- 3
4
votes
0 answers
Fail executing RSHELL to acess ESP32 using Micropython
An ESP32 was flashed with micropython, using esptool on Linux system ( Ubuntu 18.04 ). When I tried to runrshell after installing it, it seemed as it start executing, but did'nt reach to login part - rshell --buffer-size=30 -p /dev/ttyUSB0
BTW-…
guyd
- 899
- 9
- 17
4
votes
1 answer
How to setup time alarm as a silent vibration?
I've bought a smart bracelet (ID115 by LETSCOM) for its silent alarms as advertised:
Wake you up peacefully with a silent alarm.
Alarm Alert: Set silent alarms on the tracker to wake you up without disturbing your family.
However, when setup Alarm…
kenorb
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4
votes
0 answers
Creating nested IoT field gateways with Azure and AWS
From what I have read and understood from their documentation is that only single layer IoT hierarchies can be maintained with either of their gateways. That is a field gateway(sort of like a smart router) sits between the server and edge devices…
nuwnjay
- 141
- 3
4
votes
0 answers
Alexa App on Iphone 4 / IOS 7.1.2 - Can't find "alexa" button
I have an old iphone 4 that I want to use via wifi in my car to use alexa to play spotify. I installed the alexa app from the app store. Because the last version of IOS for the iphone 4 is version 7.1.2, the app store prompted me to download the…
Kallen Web Design
- 41
- 2
4
votes
1 answer
How to convert messages between CoAP and MQTT protocols?
I am a master student and my topic is about making protocol conversion among IoT communication protocols for example between CoAP and MQTT in order to make the devices that use MQTT protocol to communicate with the devices that use CoAP…
user6820
- 41
- 2
4
votes
2 answers
How to work with an ESP8266 with relay?
I bought this ESP8266 Relay, and I wish to connect to it (in order to install MicroPython, and use Python code). However, I can't find any way to start working with it.
The item is Wi-Fi discoverable, and got connected to. But from here, I couldn't…
guyd
- 899
- 9
- 17
4
votes
0 answers
MQTT with TLS for TI CC3200 fails with 'Bad CA file' error
This topic seems to pop up everywhere but, without a conclusion as to how to get MQTT-TLS for CC3200 running. So, here goes one more.
Goal
Connect TI CC3200 board to AWS IoT broker via TLS.
Steps
Get certificates
To get the keys and certificates for…
cogitoergosum
- 1,091
- 7
- 18
4
votes
1 answer
Data from ESP32 to AWS S3
Can someone here help me out with code to send data from esp32 to aws s3 storage ?
I am using esp-idf as I have other code running on the esp32 as well.
I am new to aws so any help would be good.
Hitesh Pratyush V
- 357
- 2
- 13
4
votes
0 answers
Sending temperature sensor's data to Kaa-IoT platform via 6LoWPAN
I want to set up some sensors in different places, which are wire connected to my development board, Raspberry PI or Arduino.
I'm going to send the data wirelessly but without using WiFi protocol, The best options for low range IoT projects are…
Richard Adams
- 41
- 2
4
votes
1 answer
Z-Wave Plus Backwards Compatibility
So, as I understand the Z-Wave Plus backwards compatibility requirements cover communication between Z-Wave Plus and original Z-Wave devices. Personally, I specifically take "devices" as the IoT term for sensors and other IoT objects.
My question is…
tbm0115
- 1,927
- 14
- 29
4
votes
1 answer
mosquitto - allow_anonymous false shows connected message
I have set the acl_file property in /etc/mosquitto/mosquitto.conf to /home/ubuntu/my.acl. In the ACL file, I have allow_anonymous false to disallow connections from clients that do not have user name.
From MQTT Lens, I tried connecting to this…
cogitoergosum
- 1,091
- 7
- 18
4
votes
0 answers
Remote control old intercom
My brother has a motor disability and lives in my parents house. He uses an wheelchair and operating the intercom is way too difficult for him.
I was thinking to mount an RF relay switch, but unfortunately I don't know which one is appropriate.…
rda
- 141
- 3
4
votes
0 answers
Devices wth Support for BLE Services 'Location and Speed' and 'Heartrate'
I need a BLE test device that supports at least
Location and Navigation (0x2A67) 1
Heart Rate (0x180D)
and optionally
Health Thermometer (0x1809)
Can anyone recommend one?
Edit: I'm not looking 'the best' one - simply any devices that support…
Mannie
- 179
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- 4
4
votes
1 answer
What are the best / recommended approach for communicating or sending message between iOS/Android app to hardware / Raspberry Pi?
I want to have a hardware where it will send an occasional message or notifications to the mobile app. For example, when the hardware camera is now low on battery it should send a notification to the mobile app that it is now low on battery.
I am…
Lawrence Gimenez
- 149
- 2