As indicated in the tile, the project is a clock based on an ATMEL ARM7 controller using a 128×128 OLED display. The clock face is like an analog clock face and the time values is obtained by a real time I2C based clock. A natural LED showcase is appropriate to battery-controlled applications when contrasted with an equal LCD in light of the fact that an OLED show just powers the pixels that are lit. Moreover, the display has a wide angle view then the LCD display. The controller has a dedicated SPI ports along with an A/D converter.
An RTC has been used instead of a software clock as it requires less power. Moreover, another interesting feature of this clock is that it has adaptive display which is achieved by using a light-to-voltage converter. All the components in the project have been chosen keeping in mind the power constraints. The software for the microcontroller is written almost entirely in assembly language for efficiency purposes. The entire schematic is available on the project website.