Quantity   Component name
1 × Mobile VR Headset Any mobile compatible VR headset with/without headphones
1 × Smartphone Any smartphone of 4.7-5.5inch with minimum 3GB RAM
2 × VOM1271 Isolated Mosfet
4 × LH1546ADF Optocoupler (SMD)
4 × Crimp pin connector
2 × Electrode Cable
1 × Teensy 3.2 The venerable teensy as the main MCU
1 × MLX90632 IR Temperature sensor ( Respiration monitoring )
1 × Pololu DRV8835 Motor Driver Breakout Board For driving the Peltier and Vibration motor
1 × HC-05 or other bluetooth module Bluetooth module to interface with the phone VR game
2 × TES1-03102 (15mm peltier element) (3V, 1.2A) Peltier element for biofeedback (https://www.aliexpress.com/item/15-15mm-TEC101706-Thermoelectric-Cooler-Peltier-Plate-TEC-2V-6A-New/32619168557.html)
1 × TENS unit with electrodes Sanitas-SEM42/MedFit-1/Ultima 3T will be a good option
2 × 14500 LiFePo4 1000mAh cells Protected 14500 LiFePo4 cells with atleast 5C discharge current
2 × AA cell holder
1 × Pololu 3.3V 500mA step-up step-down buck-boost convertor For powering teensy and other electronics (Not Peltier!)
4 × STD25NF20 MOSFET for switching TENS unit
1 × AD5252BRUZ1 Data Converters / Digital Potentiometers