Any Arduino Programmers?

So I've been working on some projects involving Arduinos and Raspberry Pi's. Anyone else on the tech board working on anything interesting?

This Arduino circuit tracks the current, minimum, and maximum air temperatures using two DS18B20 temperature sensors (it's been on since last February, so that's why the minimum temp. is so low). The readings of the two sensors are averaged to smooth out the data.

I put an ethernet shield on it and wrote a simple web server to serve up the data on my local network:








This Arduino circuit uses an LM35 temperature sensor and outputs the data to a graphical color LCD display:




This one reads and writes to a 24LC512 EEPROM chip:


It's not using any microconrollers, but this is an audio amplifier circuit I built using an LM384 chip: