I began to develop electronics circuits when I was a sophomore. My original purpose was to satisfy my curiosity. Although my future work may be theoretical research, designing and implementing circuit is still my hobby. I plan to do some business with friends interested in embedded system development. I prefer an open source development model.

There are a lot of interesting projects related to this S3C2440 board. The world of Linux and open source are awesome!

digitemp is a temperature sensing and monitoring program running on Linux. It can read data from temperature sensors connected on 1-wire buses. I use a PL2302 USB-to-RS232 adapter to connect to the DS18B20 sensor. In the DB9 connector, I made a circuit equivalent to DS9097 adapter.

parapin is a set of wonderful APIs to read and write data to parallel port on Linux. I am running the output test example to validate my circuit.

During my undergraduate time, I had no funding to buy a power supply. So I made it myself via National Semiconductors tri-terminal regulators
I use Keil under Windows to control the ISP on the chip not to program it.