I'm pretty new to the world of microprocessors and such, I recently purchased and started playing with an Arduino board. I have a cheapo alarm clock that has four pins on the PCB labeled dr, clk, data, and gnd. From my initial research I think they may be for an SPI connection. Basically I'm trying to figure out if I can create a serial connection between the alarm clock microprocessor and my arduino to perhaps read data from the alarm clock such as time, date, temperature, etc. Any ideas or input? I don't really know where to start. Thanks