The low-powered device consists of a PIC micro-controller, an LDR (light dependent resistor) for light sensing and a low current relay which switches between the two modes.

Posted in Arduino Hacks Tagged data transfer, flashing, ldr, light sensor, monitor, screen, temt6000 ...

TK has combined a PIR with an Arduino to create a smart safety light for the house or workshop. Follow along as this gets built out into a more extensive project.