Robo Technology Set (Serial Cable) (9785-1) is a RCX LEGO set released in 2003 with 221 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 68 unique part types.
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Building instructions
Official LEGO instructions — read on BrickID
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Parts in this set
68 parts · page 1 of 2 · updating…
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Bracket 2 x 2 - 2 x 23956 · ×2 · Blue -
Brick 2 x 23003 · ×6 · Yellow -
Brick 2 x 43001 · ×6 · Red -
Cable, Serial, for IR Transmitter Tower71793 · ×1 · Light Gray -
Dome Hemisphere 4 x 4 Multifaceted30208 · ×2 · Trans-Neon Green -
Hair Ponytail6093 · ×1 · Black -
Hair, Smooth3901 · ×1 · Brown -
Hips and Blue Legs970c28 · ×1 · Blue -
Hose, Ribbed 7mm D. 12L / 9.6cm78c12 · ×2 · Purple -
![Hub, RCX 2.0, No Power Jack [Complete Assembly]](https://cdn.rebrickable.com/media/parts/photos/14/884b-14-10efb4e7-561d-46e9-9f0f-fd9c543d46b2.jpg)
Hub, RCX 2.0, No Power Jack [Complete Assembly]884c · ×1 · Yellow -
LEGO Test Mat for Mindstorms for Schools - Training Missions Activity Pad (45533)45533 · ×1 · [No Color/Any Color] -
Light Brick 1 x 2 with Single Side Light6035 · ×1 · White -
![Motor, 9V Mini [Old Style]](https://cdn.rebrickable.com/media/parts/ldraw/7/71427.png)
Motor, 9V Mini [Old Style]71427c01 · ×2 · Light Gray -
Plate 1 x 23023 · ×8 · Blue -
Plate 1 x 83460 · ×2 · Blue -
Plate 2 x 103832 · ×2 · Light Gray -
Plate 6 x 123028 · ×2 · Red -
![Plate Round 2 x 2 with Rounded Bottom [Boat Stud]](https://cdn.rebrickable.com/media/parts/elements/265426.jpg)
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]2654 · ×2 · Black -
Sensor, Light with Fixed Cable2982c01 · ×1 · Blue -
Sensor, Touch879 · ×2 · Light Gray -
Storage Bin Lid, Dacta, 19 x 2471082 · ×1 · Trans-Clear
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Storage Bin, Dacta, Mediumupn0038 · ×1 · Bright Green
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Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle)6553 · ×4 · Light Gray -
Technic Axle 103737 · ×2 · Black -
Technic Axle 123708 · ×2 · Black -
Technic Axle 2 Notched32062 · ×4 · Black -
Technic Axle 34519 · ×2 · Light Gray -
Technic Axle 3 with Stud6587 · ×2 · Dark Gray -
Technic Axle 43705 · ×2 · Black -
Technic Axle 532073 · ×2 · Light Gray -
Technic Axle 63706 · ×2 · Black -
Technic Axle 83707 · ×2 · Black -
Technic Axle and Pin Connector Perpendicular6536 · ×2 · Light Gray -
![Technic Axle Connector Ridged [with x Hole x Orientation]](https://cdn.rebrickable.com/media/parts/elements/4113804.jpg)
Technic Axle Connector Ridged [with x Hole x Orientation]6538b · ×2 · Light Gray -
Technic Axle Connector with Axle Hole32039 · ×2 · Light Gray -
Technic Axle Pin without Friction Ridges Lengthwise3749 · ×8 · Tan -
Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin32250 · ×2 · Blue -
![Technic Brick 1 x 12 [11 Pin Holes]](https://cdn.rebrickable.com/media/parts/elements/389523.jpg)
Technic Brick 1 x 12 [11 Pin Holes]3895 · ×2 · Blue -
![Technic Brick 1 x 16 [15 Pin Holes]](https://cdn.rebrickable.com/media/parts/elements/370326.jpg)
Technic Brick 1 x 16 [15 Pin Holes]3703 · ×2 · Black -
![Technic Brick 1 x 16 [15 Pin Holes]](https://cdn.rebrickable.com/media/parts/elements/370323.jpg)
Technic Brick 1 x 16 [15 Pin Holes]3703 · ×2 · Blue -
![Technic Brick 1 x 2 [1 Pin Hole]](https://cdn.rebrickable.com/media/parts/elements/370023.jpg)
Technic Brick 1 x 2 [1 Pin Hole]3700 · ×4 · Blue -
![Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]](https://cdn.rebrickable.com/media/parts/ldraw/2/32064d.png)
Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]32064b · ×4 · Green -
![Technic Brick 1 x 4 [3 Pin Holes]](https://cdn.rebrickable.com/media/parts/elements/370123.jpg)
Technic Brick 1 x 4 [3 Pin Holes]3701 · ×4 · Blue -
![Technic Brick 1 x 6 [5 Pin Holes]](https://cdn.rebrickable.com/media/parts/elements/389423.jpg)
Technic Brick 1 x 6 [5 Pin Holes]3894 · ×4 · Blue -
Technic Bush3713 · ×20 · Light Gray -
Technic Bush 1/2 Smooth with Axle Hole Reduced32123a · ×8 · Light Gray -
![Technic Gear 24 Tooth [New Style with Single Axle Hole]](https://cdn.rebrickable.com/media/parts/elements/4142825.jpg)
Technic Gear 24 Tooth [New Style with Single Axle Hole]3648b · ×2 · Red -
Technic Gear 40 Tooth3649 · ×2 · Green