Quantity   Component name
1 × Arduino Yun The Arduino Yun is a microcontroller board based on the ATmega32u4 and the Atheros AR9331, that runs a special version of OpenWrt
1 × Custom made PCB
3 × Opto-isolator IC, Fairchild, 6N137M
1 × DC 5.5V / DC 5V converter (Galvanic isolator) Murata DC/DC-Wandler (NME0505SC)
3 × Line Transeiver MAX485CPA+
4 × Ceramic capacitor Ceramic capacitor 0,1μF
3 × Sheet resistance 4,7kΩ
3 × Sheet resistance 470Ω
1 × 5 pin toggle switch
1 × 3 Pin XLR male
1 × 5 Pin XLR female
1 × Fancy Case