Quantity   Component name
1 × SainSmart 8-Kanal-DC 5V Relay-Modul http://www.sainsmart.com/8-channel-dc-5v-relay-module-for-arduino-pic-arm-dsp-avr-msp430-ttl-logic.html
1 × Raspberry Pi
1 × ULN2803A Discrete Semiconductors / Power Transistors and MOSFETs