You need an Arduino (UNO used here), Op-amp, jumper cables, capacitors, resistors and a bread board.

OpenViBE is an opensource tool for real-time signal processing and classification

play a game with your mind

Using openViBE, Unity and LSL

smartwatch, breathing and Muse

How to capture BLE signals from your smartwatch, breathing belt or Muse EEG headset on your computer, convert them to LSL and map them to an animation