Commuting and Trail Riding Bicycle Helmet Lighting Solution...

Step 2 Napkin Sketch and Circuit Diagrams

Notice my maker notebook. It was free with another purchase. This was my first project documented within. Sorry if it is not consistent with electrical standards, but it works and works well. It utilizes three switches. Two on the outside. One controls the front and one controls the rear. The front switch allows the two 200 Lumen LEDs to run all the time, the 2100 lumen LEDs can be switched between constant on with no rear strobe, or strobe with the rear and side strobes. The rear switch enables or disables the rear strobe. The third switch is internal and allows me to switch to summer configuration where strobe is on all the time and you can switch off the front 200 lumen headlights. The totality of the electronics are the 555 timer circuit for the strobe, the dimmer circuit for the rear and side strobe, two buckpucks, and three switches. All LEDs are hooked up in series.