Final Project (Updated)
Background :
After a lot of deliberation with my colleagues at Fablab CEPT, we realised that we were not able to logically sync the mechanical aspect of the clock with the electronic components to complete the requirements of Fab Academy’s final project.
And hence decided to make a necklace which lights up on reception of sound.
What I’ve done :
I decided to make a necklace of flowers made of denim scrap, using simple needle and thread. Really enjoyed getting back to sewing, a long lost hobby.
The circuit schema.
After milling and soldering, I realised that the mic wont work without an amplifier. For the final project, I have connected my board with Keyes Microphone Shield and am now working towards making a compact circuit which has all components required to make a voice / music sensitive necklace.
I programmed the board using FabISP and Arduino IDE.
The programming set up:
What it does :
At the moment, the circuit responds to music. Please watch the video demonstration here.
What worked, and what didn’t :
Due to my lack of experience working with electronics, I ended up making a mic circuit without and amplifier / op-amp.
I am also designing a smaller circuit so that it can be hidden under the flowers of the necklace.
What I’ve learned :
Understanding the dynamics of how things work is important. And at the same time, being able to design objects which are pleasing to the eye + functional is not easy.
I under estimate the time this project would take and need to plan things better. It was fun deciphering the circuit and the design of the necklace.
Bill of Materials :
Muticolored LEDs (10 nos.) - 0.4 USD
5v Battery + connecting wire (1 nos.) - 0.3 USD
Attiny45 (1nos.) - 1.5 USD
Resistors - 0.1 USD
Capacitors - 2 USD
Sewing Needle - 1 USD
Metal chain (for necklace) - 2 USD
Miscellaneous - 2 USD
Denim strips from (Old jeans)
Arduino IDE Code :