Freematics Forum

Hello Everyone!!

I am trying to connect via bluetooth to freematics one plus and I am not able to do it. I have followed, step by step, the developers guide of the freematics one page, uploading the datalogger sketch from firmware_v5 to one plus using platformiO and I can't activate the bluetooth device, I tried to connect to the device with an android (BleTerm) with an iOs (LightBlue) and with my computer and I can't even detect the device, it seems that the itis not generating the signal and I don't know how to solve this.

How can I do to establish a bluetooth connection with the device to read the outputs? I modified the datalogger's config.h and I didn't achieve it. I looked in the entire firmware_v5 some line of code referring to the bluetooth and there is not even one.

I don't know if it is a problem with the device itself, the device's wifi works and I can read the datalogger's output printed on the sd card.

I am very newby using arduino and I would love not to touch much the freematics sketches. I am using freematics one plus, connected to an OBD-II emulator. please I need help!!

Currently Bluetooth is not brought up in the code of datalogger. You can use Arduino BLE library and example sketches to test.
https://github.com/nkolban/ESP32_BLE_Arduino/

Thank you so much Stanley!!

I will try to learn how it works and implement it to my project

Hi...Classic Bluetooth master devices need to be “Paired” with their slave devices so the master needs to be set to “Scan” and the slave to “Discover-able” in order for them to establish communications.
BLE technology is designed to handle small, episodic packets of data. BLE devices (like our MX loggers) continuously advertise their presence once powered-up. These devices will be detected by any master device (like your smart phone) that is scanning within range.