Internet of Things Stack Exchange
Internet of Things Stack Exchange

Questions tagged [bluetooth]

For questions about the use of the Bluetooth protocol and its uses in devices. Use [bluetooth-low-energy] for questions specifically about the low power version.

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When to use Wi-Fi over Bluetooth or vice versa in an IoT system?

Basically when it comes to IoT, the two main communication methods which come to my mind are either Bluetooth or Wi-Fi. I know that there are others as well like ZigBee, Z-Wave but I would like to stay at either Wi-Fi or Bluetooth as they are…
Bence Kaulics
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How do I secure communication between app and IoT device?

I am currently working on a project that includes Bluetooth communication between a mobile application (currently using the Ionic platform) and an embedded device. For comparison, our product is similar to a smart lock. Security is of utmost…
Joel Brewer
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Is Bluetooth 3.0 suitable for a single-master multiple-slave network?

I have a data logger board with a SIM808 on it. It has Bluetooth 3.0 capability by the SIM808. The board itself implements a battery management system, capable of performing weight, humidity and temperature measurements and also can detect device…
Bence Kaulics
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How do I disable phone ringing from my Tile?

When a Tile tracker is paired with a phone, double tapping a button on the Tile will make the phone ring. This happens even if the phone is on silent mode. I’ve accidentally rung my iPhone at work multiple times, disturbing the people around me. I…
Stevoisiak
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Sensors Communicating With the Pi, BLE / Wifi

I want to place a Pi 3 somewhere in my house and battery powered sensors. The Pi will read the inputs from e.g. the same level, one level above and the garden. So 1-2 regular brick walls in between and a range between 0-50m. I looked into different…
Andi Giga
10
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1 answer

Does CoAP depend on IEEE 802.15.4?

In the CoAP specification, it is implied that IEEE 802.15.4 can be used in conjunction with CoAP. Is this a requirement or can CoAP also be used with other OSI layer 1, 2 protocols such as IEEE 802.11, BLE or LTE/5G/etc?
J. Doe
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9
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3 answers

Ultra Low Energy point-to-point protocol choice

I am lost in a forest of IoT protocols and need help. I'm looking for right hardware and protocol for my application. I would like to make a device of my own, but use an existing stack and hopefully an existing gateway, my requirements are: Low…
NoobPointerException
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3 answers

Setting a device clock with BLE

I'd like to build a device that obtains the local time from a phone or laptop via BLE. My ideal interaction flow would be: push a "set time" button on the device to make it start advertising open Bluetooth settings or control panel on the…
jmw
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IoT Setup: Bluetooth Sensor -> IoT Gateway -> IoT Platform

I want to get started implementing IoT stuff. I do not have experience with it so far, but am learning fast. I am imagining my setup as follows: Proposed Setup Different wireless sensors (Temperature, Humidity, ...) should be connected to an IoT…
HideAndSeek
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How to secure a Samsung Smart Refrigerator against BlueBorne?

Armis Labs lately revealed a new attack vector that attacks essentially all major OS including those used on IoT devices via Bluetooth. BlueBorne is reported to spread malware laterally to adjacent devices - which sounds pretty much like an IoT…
Ghanima
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Does an Internet of Things device need to directly connect to the Internet, or can they use alternative protocols like Bluetooth or ZigBee?

Can a device be considered an "IoT Device" if it uses protocols such as Bluetooth and ZigBee which are not directly connected to the internet? I've been reading about smart devices and connected devices that are not necessarily connected to the…
lp123
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Is there an IoT device which has Bluetooth, GPS, a USB port and which can support a module for an alarm?

I'm looking for an IoT device which has Bluetooth, GPS, a USB port and which can support a module for an alarm. The end product is a wearable device therefore the device should be small. It should be something like an Arduino or a Raspberry Pi. The…
Muiz Uvais
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1 answer

Protocol for over 300 metres and minimum of 20 kbytes datarate?

We are trying to choose the most suitable connection protocol for wearable devices, with the following constraints: 300 - 500 devices will simultaneously connect About 1 km2 site area—coverage is needed throughout the site. Devices are moving …
dicobraz
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Can a Bluetooth tag (iOS and Android) send a push notification without the device being connected to the internet?

I have several Bluetooth tags, model "Onyx Beacon One". They can be controlled via the company's CMS. I can also switch them between Eddystone UID&URL and iBeacon. I can simply place two of them next to each other to send messages to both iOS and…
RubbelDieKatz
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BLE only partially connected in iPhone?

I am trying to use BLE to send strings of data from a CSR8675 chip to an iPhone I am having problems pairing the chip with the iPhone for BLE communication, and need some ideas on how to proceed with troubleshooting Normally if a bluetooth…
user17915
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