Tensiometre - Heart Beat Sensor

Wassup ?

Today we repluged all the wires that were badly connected. Finally it worked.
When we had our project working, we realised the sensor for heart beats had a pretty bad accuracy. 

The BPM displayed on the LCD screen varied from -50 to + 80 from our real BPM value. 
Our opinion about this is that it's really depending on how we put our finger on the sensor which makes the value changing, moreover, the finger is said as one of the worst place to detect heart beating.

Anyway, we have our project working and will try to figure out how to improve the sensing accuracy.

Today we received the tensiometer which is kind of old school and we realised it would be hard to trick it so has it would work with the Arduino Card.

However, we advanced on the project, the connections that you can see on the picture below 

We got a small problem for inputing the code on the card.
The next step is to input the code, then we'll check for the tensiometer which needs some physicals modifications.

End of the log

We received the components to create the heart beat sensor.

We ordered the tensiometer  because we forgot it last time.

We wrote the code of the LCD screen and the code of the heart beat sensor.

This is the trello to define the task : https://trello.com/b/ZAgzShXl/project

We did the connections for the hardware.

We changed our project to an easier one, we passed from a Blood pressure sensor to a beating per minutes sensor.  But the BPM sensor is already existing and it’s not making such a change from produces that already exists. We decided to make both BPM and Blood Pressure Sensors with an Arduino Card. On this day we defined roughly what we needed as pieces for our project. We finished the session with the list of all our components, ready to order.