9785-1
Robo Technology Set (Serial Cable)
Building instructions
The building instructions are on the official LEGO website. We do not host any instructions ourselves; the link below takes you to the official page.
View building instructions on LEGO.com (opens an external website)This set on Rebrickable (opens an external website)
Parts list – 9785-1 Robo Technology Set (Serial Cable)
68 lines, 221 pieces
| Image | Part | Name | Colour | Quantity | Note |
|---|---|---|---|---|---|
 | 3003 | Brick 2 x 2Bricks | Yellow | 6× | |
 | 3001 | Brick 2 x 4Bricks | Red | 6× | |
 | 30208 | Dome Hemisphere 4 x 4 MultifacetedBricks Round and Cones | Trans-Neon Green | 2× | |
 | 71793 | Cable, Serial, for IR Transmitter TowerElectronics | Light Gray | 1× | |
![Part 884c Hub, RCX 2.0, No Power Jack [Complete Assembly] in Yellow](https://cdn.rebrickable.com/media/parts/photos/14/884b-14-10efb4e7-561d-46e9-9f0f-fd9c543d46b2.jpg) | 884c | Hub, RCX 2.0, No Power Jack [Complete Assembly]Electronics | Yellow | 1× | |
 | 6035 | Light Brick 1 x 2 with Single Side LightElectronics | White | 1× | |
![Part 71427c01 Motor, 9V Mini [Old Style] in Light Gray](https://cdn.rebrickable.com/media/parts/ldraw/7/71427.png) | 71427c01 | Motor, 9V Mini [Old Style]Electronics | Light Gray | 2× | |
 | 2982c01 | Sensor, Light with Fixed CableElectronics | Blue | 1× | |
 | 879 | Sensor, TouchElectronics | Light Gray | 2× | |
 | 76091 | Transmitter Tower, IR, Serial with Black FrontElectronics | Dark Gray | 1× | |
 | 5306bc020 | Wire with Brick 2 x 2 x 2/3 Pair, 20LElectronics | Black | 3× | |
 | 5306bc036 | Wire with Brick 2 x 2 x 2/3 Pair, 36LElectronics | Black | 3× | |
| 71082 | Storage Bin Lid, Dacta, 19 x 24Gear Parts | Trans-Clear | 1× | ||
| upn0038 | Storage Bin, Dacta, MediumGear Parts | Bright Green | 1× | ||
 | 6093 | Hair PonytailMinifig Headwear | Black | 1× | |
 | 3901 | Hair SmoothMinifig Headwear | Brown | 1× | |
 | 970c28 | Hips and Blue LegsMinifig Lower Body | Blue | 1× | |
![Part 973c27h01 Torso, White Arms, Yellow Hands [Plain] in White](https://cdn.rebrickable.com/media/parts/elements/4275461.jpg) | 973c27h01 | Torso, White Arms, Yellow Hands [Plain]Minifig Upper Body | White | 1× | |
| 45533 | Playmat / Test Mat for Mindstorms for Schools - Training Missions Activity PadNon-System Parts | [No Color/Any Color] | 1× | ||
 | 3023 | Plate 1 x 2Plates | Blue | 8× | |
 | 3460 | Plate 1 x 8Plates | Blue | 2× | |
 | 3832 | Plate 2 x 10Plates | Light Gray | 2× | |
 | 3028 | Plate 6 x 12Plates | Red | 2× | |
![Part 2654 Plate Round 2 x 2 with Rounded Bottom [Boat Stud] in Black](https://cdn.rebrickable.com/media/parts/elements/265426.jpg) | 2654 | Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Plates Round Curved and Dishes | Black | 2× | |
 | 3956 | Bracket 2 x 2 - 2 x 2Plates Special | Blue | 2× | |
![Part 3709 Technic Plate 2 x 4 [3 Holes] in Yellow](https://cdn.rebrickable.com/media/parts/elements/370924.jpg) | 3709 | Technic Plate 2 x 4 [3 Holes]Plates Special | Yellow | 4× | |
![Part 32001 Technic Plate 2 x 6 [5 Holes] in Blue](https://cdn.rebrickable.com/media/parts/elements/4114027.jpg) | 32001 | Technic Plate 2 x 6 [5 Holes]Plates Special | Blue | 4× | |
![Part 3738 Technic Plate 2 x 8 [7 Holes] in Yellow](https://cdn.rebrickable.com/media/parts/elements/373824.jpg) | 3738 | Technic Plate 2 x 8 [7 Holes]Plates Special | Yellow | 4× | |
![Part 85544 Technic Rubber Belt Medium [24mm ID] [Round Cross Section] in Blue](https://cdn.rebrickable.com/media/parts/ldraw/1/85544.png) | 85544 | Technic Rubber Belt Medium [24mm ID] [Round Cross Section]String, Bands and Reels | Blue | 4× | |
 | 3737 | Technic Axle 10Technic Axles | Black | 2× | |
 | 3708 | Technic Axle 12Technic Axles | Black | 2× | |
 | 32062 | Technic Axle 2 NotchedTechnic Axles | Black | 4× | |
 | 4519 | Technic Axle 3Technic Axles | Light Gray | 2× | |
 | 6587 | Technic Axle 3 with StudTechnic Axles | Dark Gray | 2× | |
 | 3705 | Technic Axle 4Technic Axles | Black | 2× | |
 | 32073 | Technic Axle 5Technic Axles | Light Gray | 2× | |
 | 3706 | Technic Axle 6Technic Axles | Black | 2× | |
 | 3707 | Technic Axle 8Technic Axles | Black | 2× | |
 | 32250 | Technic Beam 3 x 5 L-Shape with Quarter Ellipse ThinTechnic Beams | Blue | 2× | |
![Part 3895 Technic Brick 1 x 12 [11 Pin Holes] in Blue](https://cdn.rebrickable.com/media/parts/elements/389523.jpg) | 3895 | Technic Brick 1 x 12 [11 Pin Holes]Technic Bricks | Blue | 2× | |
![Part 3703 Technic Brick 1 x 16 [15 Pin Holes] in Black](https://cdn.rebrickable.com/media/parts/elements/370326.jpg) | 3703 | Technic Brick 1 x 16 [15 Pin Holes]Technic Bricks | Black | 2× | |
![Part 3703 Technic Brick 1 x 16 [15 Pin Holes] in Blue](https://cdn.rebrickable.com/media/parts/elements/370323.jpg) | 3703 | Technic Brick 1 x 16 [15 Pin Holes]Technic Bricks | Blue | 2× | |
![Part 3700 Technic Brick 1 x 2 [1 Pin Hole] in Blue](https://cdn.rebrickable.com/media/parts/elements/370023.jpg) | 3700 | Technic Brick 1 x 2 [1 Pin Hole]Technic Bricks | Blue | 4× | |
![Part 32064b Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] in Green](https://cdn.rebrickable.com/media/parts/ldraw/2/32064d.png) | 32064b | Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]Technic Bricks | Green | 4× | |
![Part 3701 Technic Brick 1 x 4 [3 Pin Holes] in Blue](https://cdn.rebrickable.com/media/parts/elements/370123.jpg) | 3701 | Technic Brick 1 x 4 [3 Pin Holes]Technic Bricks | Blue | 4× | |
![Part 3894 Technic Brick 1 x 6 [5 Pin Holes] in Blue](https://cdn.rebrickable.com/media/parts/elements/389423.jpg) | 3894 | Technic Brick 1 x 6 [5 Pin Holes]Technic Bricks | Blue | 4× | |
 | 3713 | Technic BushTechnic Bushes | Light Gray | 20× | |
 | 32123a | Technic Bush 1/2 Smooth with Axle Hole ReducedTechnic Bushes | Light Gray | 8× | |
 | 6553 | Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle)Technic Connectors | Light Gray | 4× | |
![Part 6538b Technic Axle Connector Ridged [with x Hole x Orientation] in Light Gray](https://cdn.rebrickable.com/media/parts/elements/4113804.jpg) | 6538b | Technic Axle Connector Ridged [with x Hole x Orientation]Technic Connectors | Light Gray | 2× | |
 | 32039 | Technic Axle Connector with Axle HoleTechnic Connectors | Light Gray | 2× | |
 | 6536 | Technic Axle and Pin Connector PerpendicularTechnic Connectors | Light Gray | 2× | |
![Part 3648b Technic Gear 24 Tooth [New Style with Single Axle Hole] in Red](https://cdn.rebrickable.com/media/parts/elements/4142825.jpg) | 3648b | Technic Gear 24 Tooth [New Style with Single Axle Hole]Technic Gears | Red | 2× | |
 | 3649 | Technic Gear 40 ToothTechnic Gears | Green | 2× | |
 | 3647 | Technic Gear 8 ToothTechnic Gears | Light Gray | 3× | |
 | 3749 | Technic Axle Pin without Friction Ridges LengthwiseTechnic Pins | Tan | 8× | |
 | 4274 | Technic Pin 1/2 without Friction RidgesTechnic Pins | Light Gray | 4× | |
 | 32002 | Technic Pin 3/4Technic Pins | Dark Gray | 8× | |
 | 2780 | Technic Pin with Friction Ridges Lengthwise and Center SlotsTechnic Pins | Black | 12× | |
 | 3673 | Technic Pin without Friction Ridges LengthwiseTechnic Pins | Light Gray | 12× | |
 | 78c12 | Hose, Ribbed 7mm D. 12L / 9.6cmTubes and Hoses | Purple | 2× | |
 | 2815 | Technic Wedge Belt Wheel TireWheels and Tyres | Black | 2× | |
![Part 4185 Technic Wedge Belt Wheel [aka Pulley] in Yellow](https://cdn.rebrickable.com/media/parts/elements/418524.jpg) | 4185 | Technic Wedge Belt Wheel [aka Pulley]Wheels and Tyres | Yellow | 2× | |
 | 3634 | Tyre 43 x 11, 17 mm Inside DiameterWheels and Tyres | Black | 2× | |
 | 2902 | Tyre 81.6 x 15 MotorcycleWheels and Tyres | Black | 2× | |
 | 3483 | Tyre Offset Tread 24 x 8Wheels and Tyres | Black | 2× | |
 | 2903 | Wheel 61.6 x 13.6 MotorcycleWheels and Tyres | White | 2× | |
 | 3482 | Wheel with Split Axle HoleWheels and Tyres | Yellow | 4× |