Microcontroller alone is worthless without other devices around. So usually you need to control something, read so me data and give visual feedback. These normally are buttons, LEDs, LCDs, buzzers, relays and so on. In most projects you usually use at least one of these. When prototyping any new device you usually need some basic I/O like LEDs, buttons. Normally you would grab breadboard and star wrapping around and you notice that you’ve been doing this so many time that it becomes a wasting of time. Having this in mind embedded-lab has designed an experimenter board which has all basic stuff needed for prototyping and learning.
Experimenter board can be used with any microcontroller development board using jumper wires. It comes with 5V regulator, HD44780 based LCD, SPI controllable 4 digit seven segment LED display, I2C EEPROM and DS1307 RTC, LM34 temperature sensor socket, piezo buzzer, pot, open collector transistor for driving small loads, 8 LEDs and 4 tact switches.