# Bluetooth signal strength phone

**URL:** <https://discourse.nodered.org/t/bluetooth-signal-strength-phone/47755>\
**Category:** General\
**Created:** [28 June 2021 19:21 UTC](https://discourse.nodered.org/t/bluetooth-signal-strength-phone/47755 "2021-06-28T19:21:56Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Duncan](https://avatars.discourse-cdn.com/v4/letter/d/ecc23a/32.png) [@Duncan](https://discourse.nodered.org/u/Duncan)\
**Post date:** [28 June 2021 19:21 UTC](https://discourse.nodered.org/t/bluetooth-signal-strength-phone/47755/1 "2021-06-28T19:21:56Z")

</div>

I have been trying to get bluetooth working with my phone, nothing seems to work properly. Sure there are nodes which indicate true or false if phone is in range. What I would like to do is measure the signal strength of my (or family mamber) bluetooth phone signal, if in range of the raspberry pi measure the signal. I have a PI controlling an electric lock, so if the signal is strong the lock will open.  
What is the best node to use for this?  
thanks

---

<div class="post-metadata">

**Author:** ![krambriw](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/krambriw/32/5429_2.png) [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Post date:** [29 June 2021 04:56 UTC](https://discourse.nodered.org/t/bluetooth-signal-strength-phone/47755/2 "2021-06-29T04:56:49Z")

</div>

There is no "best node" for it. Instead you could look into [this](https://github.com/andrewjfreyer/monitor) project, You would run this outside of Node-RED and communicate result with Node-RED via MQTT. Works very well, have it running since years. In the article there is a good description of the method for detection of phones.

I would also recommend you to buy an external BT dongle instead of using the RPi builtin

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [28 August 2021 04:56 UTC](https://discourse.nodered.org/t/bluetooth-signal-strength-phone/47755/3 "2021-08-28T04:56:50Z")

</div>

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.