Assignments

Complete your final project tracking your progress.

Status at the time of the Week 19

The vermicomposter itself is ready, here is what remains :

Composites

I was able to finish the composite work this week. I was late on it but it worked finally fine.

Electronics & communication

I Had many difficulties making the communication work, even more as I am using one board to read both the capacitive (moisture) and the DTH22 (temperature). First I tried to send the values separately but finally I found it easier to create a message containing all the values and it works.

During the input week I used a C++ code to read a capacitive value, now I need to transpose it in arduino language.

Reliability of the DIY moisture sensor

I based on the Neil’s advice to make my own moisture sensor with a capacitive circuit. I experimented it during the input week using an ATTiny44 board programmed in c++. I tried calibrate it because, but currently the values are very fluctuating.

Worm juice tank holder

Currently the worm juice tank stand one the ground, but it would be better if ie was hooked on.

Questions about the final project

Schedule for the final project

Done for the fabacademy

Improvement clue

I still have issues on electronics, hope it will be able to communicate properly, my last delay for it will be on the 16 of June, the Lab is opened all day for us.

FabAcademy learning outcomes

Tools and documentation

Previously, I had never created a website or used git. Thanks to the documentation work I learned not only to better document but also to use the various tools necessary for the creation of online content (gitlab, Atom, ImageMagick …)

Electronics and programming

Thanks to the fabacademy I learned a lot about electronics. The different cards produced allowed me to discover and master Eagle (basics!), to familiarize myself with the different electronic components and their functions. I also develop my welding skills through the different PCBs produced.

All problems met with serial communication have made me progress in programming. On this subject I thank Adrien and JB, my colleagues, who helped me on this subject. The time spent understanding Neil’s code for capacitive measurement and its implementation in Arduino allowed me to take a first step in the C ++ language.

Working with the ATTiny44 I had to adapt to its characteristics and put aside the systematic use of library. This is how I searched the library of DHT temperature sensors for use without libraries and save space on the microcontroller.

Molding and casting

I had not done too much molding, the fabacademy allowed me to confront it during the wildcard week and week 10. I learned about different products and techniques. In particular thanks to this site

Fusion 360

I used to use Fusion 360 before the fabacademy. However, I used the model module more than anything else. Working on the Badgebot for the machine design week, I experimented and learned how to use form and patch modules. This opens up new possibilities …!

I also learned how to link PCBs designed with Eagle into fusion to integrate the electronic boards into the fusion projects.