Tagged Questions

-4
votes
0answers
73 views

Advice needed: Develop a bluetooth device at the size of finger ring [closed]

I have a small requirement. I like to amplify the microphone signal of a smartphone (android/iphone/windows phone) using a bluetooth device that can be worn on finger as ring. The idea is not to loose ...
0
votes
3answers
113 views

A device that wirelessly, securely posts to a server in response to door opening: off the shelf or custom-make?

I am looking for an off the shelf component for a project I am currently working on. Due to the nature of the project I cannot go into much detail about the project itself, only give a high level ...
1
vote
4answers
238 views

Microcontroller with rotary encoder and bluetooth capabilities [closed]

I am looking for advice on (what to use/how to make) a rotary encoder that I can connect to through bluetooth. I am writing an app that needs to display on screen in real time to the user the number ...
3
votes
2answers
4k views

What will it take to build a small bluetooth device?

I am new to this part of StackExchange. I am doing a project that requires me to keep track of Bluetooth devices. So I want to build a tiny Bluetooth device that can be attached to almost anything; ...
4
votes
2answers
327 views

What low power RF Transmitter to use for crowded signal area

Hi I'm fairly green when it comes to RF technology in circuits. Here's my problem: I need a low power RF transmitter module (3 - 5v) for my application. It's a small embedded device and all it does ...