Laser cutting the housing.

120 bike light boards complete!

120 bike light boards complete!

First two working units after the redesign. Much easier and cheaper to assemble, and they look better too.

First two working units after the redesign. Much easier and cheaper to assemble, and they look better too.

1,000 LEDs.

1,000 LEDs.

Baking some bike lights. This new convection oven, which I’m sad to say will never be used for anything else, works fantastically.

Baking some bike lights. This new convection oven, which I’m sad to say will never be used for anything else, works fantastically.

The test bike ride went very well. Many thanks to Charlie, Michael, Lindsey, Milad, Sarah, and Brent for braving the unseasonably cold weather.

First 5 fireflies — more to come!

First 5 fireflies — more to come!

Two ATtiny84a prototypes. The range is quite good: they synchronize from across my house, even though one doesn’t have an antenna connected. One has a switch connected, which toggles sleep mode on the device.

Two ATtiny84a prototypes. The range is quite good: they synchronize from across my house, even though one doesn’t have an antenna connected. One has a switch connected, which toggles sleep mode on the device.

Just sent off the PCB design to Gold Phoenix for the initial prototype run of 25 bike lights. The schematic, board design, and all the files needed to produce your own board are now on the project GitHub site. I used the free version of Eagle to design the schematic and boards.