OSOYOO 20 in 1 Ultimate Sensor Kit for Arduino UNO R3 Mega2560 Nano Raspberry Pi DIY Learning Package with On-line Instructions for Each Module The kit has 20 projects and 20 sensors modules for Arduino and raspberry Pi beginners. This is OSOYOO 20 sensor Starter Kit, developed specially for those beginners who are interested in Arduino. A complete set of Arduino's most common and useful electronic components. Detailed tutorial for Arduino including project introduction and their source code will be provided FOR FREE. The Arduino control board is not included