I create a simple circuit to be familiar with the position of the LED, the resistor and the battery.
The led needs te be on the correct orientation. Anode (+) to cathode (-) from VCC to GRD (Ground).
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Only two possibilities. ON/OFF
Contact sensor –> make the connection between two part to close the loop and create a circuit.
The circuit is placed on a breadboard to have an overview of the fonctionality.
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I used the mold made during the assignment Bioplastic and Natural dying.
With the mold, I traced the lines on a copper foil and cut with scissors (the vinyl machine would have been more appropriate for this)
I add 3 LEDs and try to put them in series.
I cut the copper to separate in 3 parts for each led to not create a gap or a short circuit.
I had to solder some part because of the glue on the copper paper.
Because the LEDs are in series and each need 3V I have to find a way to connect a 9V battery.
NB :The LEDs placed in parallel would have dispatched the Volt and it would have been possible to connect a smaller battery.
Connecting the 9V battery to the stripes respecting the + and – the LEDs turn on.
- 3ml Glycerin
- 12G gelatin
- 60ml water
- 3 drops of acrylic gold.
I let it dry few minute and removed the mold.
before to connect the battery to the circuit, the bioplastic need to dry to not create a short circuit because of the water in it.
after 3 days, I tested the circuit :