BreathUp: Website and Qualification


During this week, I worked, as planned, on the website and on the qualification.

Concerning the website, I create some more views and bootstrap them. Therefore it’s not just an API anymore, one can administrate and visualize the status of every devices with just a few clicks on their browser.

Regarding the signal’s qualification, I had implemented last week a first draft of algorithms to localize and count the breathing cycles and heart beats. I improved and cleaned them a lot. One of the major improvement is that they now run on the fly.

In order to test theses algorithms, I wrote some Pythons scripts that plot on figures the original ECG and EMG with the detections and they clearly match.

I’ve therefore wrote an email to our partners to inform them of our progress and to ask them what data do they really want to see in real time on the website and that we should therefore acquire and send via Bluetooth or LoRa.

Eventually, as we will only be able to work on the PCB at the beginning of year, I will spend some time on how LMIC uses AES.

I wish you a merry Christmas.

Xavier Chapron

BreathUp the end of electric scheme digital part


Last Wednesday, I planned to finish the digital part of the electric scheme and to work on the server and website.

Therefore, I’ve design the LoRa chip scheme, and especially it’s antenna that was missing. The tough part is that we will directly use the LoRa chip, and not a module, therefore we will have to implement a LoRa stack and handle the whole protocol. It’s design is then really tougher than one for a module with just RX, TX and Reset pins. But with the help of Alexis, we did it!

I’ve also work on the website architecture, after doing Python web framework Pyramid ‘s tutorial I’m quite sure that we will use that because it’s quite light and easy to implement. Moreover as we will have just some pages, there is no need for something bigger.

For next Wednesday, I want to establish a solid architecture for the website and server that I could present to Samuel. I will also look for connectors for the electrodes.

Xavier Chapron