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Fireflies based on tiny AVR
This circuit simulates fireflies with small microcontrollers. Here is the circuit and the component used for single fireflies
ATtiny13 microcontroller
Light Dependant Resistor (LDR)
LED
2 resistors
To make it interesting, assembly it on the board for 25 fireflies. Every single firefly is self contained, there is no over-all controller. Here is the picture