Quantity   Component name
5 × irfz44n power moset
5 × ltv817 Optocouplers and Optoisolators
5 × 1N4001 Diodes and Rectifiers
5 × 100 ohms resistor
5 × 680 ohms resistor
1 × arduino any arduino will do, even 8/168 ones
1 × 12V accumulator lipo or lead, should be able to output 2.5 amps