bids are invited for temperature sensor , 5mm thick acrylic sheet 4 x 4 , capacitors ( 450 v, 2200uf ) , back emf protection circuit from coil , current limiting circuit ( lfb 3150r ) 80 - 150 amp , velocity measurement circuit with hall affect sensor , tripod stand for gun , copper wire 2 awg , aluminium metal for gun structure fabrication. , high voltage dc, dc booster 12v to 450v , opto isolators pc817, 2n35 , diode 30kpa-hra , pbt2 connectors , multi purpose pcb board ( dotted pcb ) , trigger switch , connecting wire 7 awg, 14 awg , microcontroller development board with esp32 mcu , iron material projectile ( 10mm dia, 50 mm length ) , dc to dc buck converters circuits , battery charger for project , soft iron metal barrel , 100 amp peak thyresitor ( part of charging cct ) , lm 358 comparator for sensor. , oled display unit 1.3 inch total quantity : 1