ExpEYES (Experiments for Young Engineers and Scientists) is a science and experimentation platform designed by the PHOENIX project, which forms part of the Inter-University Accelerator Centre (IUAC) in New Delhi, India. It can be described as an ultra low cost electronics lab capable of being used as an oscilloscope and a signal generator.

It lets you develop science and electronics experiments, demonstrations, and projects without getting too involved in the nitty-gritty details of electronics or computer programming. In other words it basically converts your Raspberry Pi into a portable science and electronics laboratory.

 Features:

● 12 bit Analog Input/Output
● Digital I/O
● Time interval measurements
● Waveform Generation
● USB Powered
● GUI for 50 experiments
● Python Programmable
● Works as a Test Equipment
● 8.6 x 5.8 x 1.5 cm3, 60 gm.
● Open Hardware

expEYES is powered by an AVR ATmega16 MCU , running at 8 MHz. It uses FT232RL chip to communicate with the Raspberry Pi. expEYES is capable of acting as a four-channel oscilloscope with 12-bit analogue resolution, microsecond timing resolution and a 250 kHz sampling frequency. It also comes equipped with an built-in signal generator.

Interfacing with Raspberry Pi

First, update your system's package list by entering the following command in LXTerminal or from the command line: 

sudo apt-get update

Next, run the following command 

sudo apt-get install expeyes 

ExpEYES has a number of dependencies that are required for it to run under Linux, as well as a number of other recommended libraries. To avoid any problems later, you can run the following command in order to make sure that they are all installed:
 
sudo apt-get install python python-expeyes python-imaging-tk python-tk grace tix python-numpy python-scipy python-pygrace

expEYES Hardware Availability

ExpEYES is currently available from the following firms:-

1.  Fab.to.Lab (Ships Internationally) (Cheapest Online)
2.  Pi-Supply (Ships Internationally)