bids are invited for arduino uno , arduino nano , arduino mega , 3d pen , usb cable set mini 12 inches or more , wemos d1 r2 , node mcu , esp 32 , bo motor wheel , sound playback module , l293d motor driver module , active buzzer big , active buzzer small , ldr module , laser diode emitter , gsm , bluetooth module , sound sensor module , rf modules tx and rx , dc gear motor , position servo angle based metal gear , small servo metal gear , continuous metal gear servo 360 , small servo plastic gear , l298n motor driver , otto bot , 37 in 1 sensor kit , gear box , amusement park , rack and pinion , e circuit kit , mechanic kit zero , mechanic kit junior , mechanic kit senior , mechanic kit advacne , power screw , paper circuit kit , soldering wire 500 gm , sand paper 100 grit , sand paper 400 grit , jumper wires male to female , jumper wires male to male , jumper wires female to female , bo motor , tb 6560 driver board 3a , 38 khz ir transmiter , heat shrink sleeve , lithium ion cell 18650 , lithium ion cell charging module , ir reciever , 7inch capacitive touch screen display with hdmi , peltier module , dc motor speed controller , variable power supply 0-48v , 9v battery with connecters , lithium polymer battery 3v , a4988 driver , 18pf cpacitor , mini hexa blade frame , aero space kit , wol 3d creality k1 max fast 3d printer , lenovo laptop 8gb ram 13th gen , celestron star scene explorer dx 130 az , diy paper microscope , tweezer set , button switch set , glue stick , foam core boards , rubber band , raspberry pi3 module plus , pla pro 3d printing filament , jet black , crystal clear , lenovo v15 g2-itl aptop screen total quantity : 1423