Temperature controlling system for LED lighting based on ARM

Since LEDs are generally considered to be an important lighting source of the future, an ARM-based LED intelligent lighting system was provided in this paper. According to the ambient temperature obtained by sensors, the designed system can adjust the glow color automatically to provide a pleasant lighting environment. Based on the ARM Cortex-M0 processor, the hardware and software of this system were accomplished and a series of pulse width modulation signals were generated to drive the LEDs. The testing results of the physical prototype show that the designed system works well. Thus, the preliminary research proves the possibilities of smart lighting.