Quantity   Component name
1 × BLEduino "Easily control anything from your phone or tablet via bluetooth." http://bleduino.cc/
1 × MCP23008 Microprocessors, Microcontrollers, DSPs / IO Controllers
6 × 4N26 Opto and Fiber Optic Semiconductors and ICs / Optocouplers and Optoisolators
1 × L7805CV Power Management ICs / Linear Voltage Regulators and LDOs
2 × PN2222A Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs