How many pieces are in the Robotics Invention System, Version 1.5?

Robotics Invention System, Version 1.5 contains 731 pieces.

What age is the Robotics Invention System, Version 1.5 recommended for?

This set is recommended for ages 12+.

When was the Robotics Invention System, Version 1.5 released?

Robotics Invention System, Version 1.5 was released in 1999.

🏛 RCX

Set #9747

Robotics Invention System, Version 1.5

Name: Robotics Invention System, Version 1.5
Brand: LEGO
SKU: 9747-1

The Robotics Invention System 1.

🏆 Best For: LEGO fans interested in robotics and programming, especially those interested in the history of LEGO robotics ⏱ 4.5 hr build 🧩 731 pcs 🎂 Ages 12+

★★★★☆ 4.2

Fans appreciate the historical significance and educational value of this early LEGO robotics set. Criticisms often focus on the outdated technology compared to modern MINDSTORMS, but the set remains a nostalgic favorite for many.

Best Price

$30.00

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📝 Our Take

The Robotics Invention System 1.5 is a groundbreaking set that launched a new era of LEGO. Released in 1999, this set wasn't just about building static models; it was about bringing them to life with programmable robotics. It introduced many LEGO fans to the world of coding and engineering in a fun, accessible way.

This set is perfect for LEGO enthusiasts interested in robotics and programming. While seemingly dated, the RIS 1.5 offers a unique glimpse into LEGO's early forays into robotics, providing a hands-on learning experience that blends physical building with basic coding concepts. The building experience is challenging and rewarding, especially when you see your robot come to life.

Skip this if you're looking for the latest and greatest in LEGO robotics technology. Modern LEGO MINDSTORMS sets offer more advanced sensors, motors, and programming capabilities. Consider sets like the newer LEGO MINDSTORMS Robot Inventor (51515-1) for a more up-to-date experience.

✨ New

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How does the Robotics Invention System 1.5 compare to modern LEGO MINDSTORMS sets? What are the key programming concepts that can be learned from this set? How does the set's historical significance impact its collectibility? What are some creative MOC ideas that can be built using the RIS 1.5 parts?

🧱 Building Experience

🧩

731

Pieces

⏱

4.5h

Build Time

📊

Intermediate

Difficulty

👤

12+

Ages

Build Highlights:

Programming the RCX brick to control motors and sensors
Learning basic coding concepts through hands-on experimentation
Building various robotic models with different functionalities
Experiencing LEGO's early entry into robotics and programmable toys

📈 Investment Analysis

→ Price stable

Investment Grade

⏳ Active

The Robotics Invention System 1.5 holds moderate investment potential. As a pioneering set in LEGO robotics, it has historical significance and appeal to collectors interested in the evolution of LEGO technology. The set's age and relative rarity contribute to its value. However, the technology is dated compared to modern LEGO robotics sets, which may limit its appeal to some investors. Keeping the set complete with its original box, software, and instructions will significantly enhance its value. Proper storage is essential to protect electronic components.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

Robot Inventor

MINDSTORMS • 949 pcs

$359.99

Dark Side Developer Kit

Compared to modern LEGO MINDSTORMS sets, the Robotics Invention System 1.5 uses older technology but provides a unique historical perspective on LEGO robotics. While sets like LEGO MINDSTORMS Robot Inventor (51515-1) offer more advanced features, the RIS 1.5 appeals to collectors and those interested in the history of LEGO. Consider the RIS 1.5 for its historical value and unique building experience, or opt for a newer MINDSTORMS set for cutting-edge technology.

📦 Full Parts Inventory - 133 unique parts • 731 total pieces

Tyre 30 x 10.5 Of...

Part #: 2346 4× Black

Wedge Plate 3 x 6...

Part #: 2419 2× Green

Plate 2 x 2 Corner

Part #: 2420 8× Light Gray

Plate Round 2 x 2...

Part #: 2654 2× Black

Technic Brick 1 x...

Part #: 2730 8× Black

Technic Pin with ...

Part #: 2780 25× Black

Technic Wedge Bel...

Part #: 2815 2× Black

Plate Special 2 x...

Part #: 2817 4× Light Gray

Technic Beam 1 x ...

Part #: 2825 2× Light Gray

Technic Engine Cr...

Part #: 2854 2× Light Gray

Tyre 81.6 x 15 Mo...

Part #: 2902 4× Black

Wheel 61.6 x 13.6...

Part #: 2903 4× White

Sensor, Light wit...

Part #: 2982c01 1× Blue

Motor Pulley, 9V ...

Part #: 2983 2× Light Gray

Wheel Rim 24 x 14...

Part #: 2994 2× White

Brick 2 x 4

Part #: 3001 5× Black

Brick 2 x 2

Part #: 3003 20× Black

Brick 1 x 2

Part #: 3004 4× Yellow

Brick 1 x 2

Part #: 3004 20× Black

Plate 2 x 4

Part #: 3020 6× Yellow

Plate 2 x 2

Part #: 3022 2× Green

Plate 2 x 2

Part #: 3022 4× Blue

Plate 2 x 2

Part #: 3022 8× Light Gray

Plate 1 x 2

Part #: 3023 20× Light Gray

Plate 1 x 1

Part #: 3024 8× Light Gray

Plate 6 x 10

Part #: 3033 1× Light Gray

Plate 2 x 8

Part #: 3034 4× Green

Slope 45° 2 x 1 w...

Part #: 3040b 12× Black

Slope 45° 2 x 1 w...

Part #: 3040b 4× Yellow

Technic Plate 2 x...

Part #: 32001 4× Light Gray

Technic Pin 3/4

Part #: 32002 17× Dark Gray

Technic Tread Hub

Part #: 32007 4× White

Technic Beam 1 x ...

Part #: 32009 4× Yellow

Technic Axle and ...

Part #: 32013 4× Blue

Technic Axle and ...

Part #: 32015 4× Light Gray

Technic Beam 1 x ...

Part #: 32017 4× Light Gray

Plate Special 1 x...

Part #: 32028 8× Light Gray

Technic Axle and ...

Part #: 32034 2× Blue

Technic Axle Conn...

Part #: 32039 2× Light Gray

Technic Pin Long ...

Part #: 32054 4× Blue

Technic Beam 3 x ...

Part #: 32056 4× Light Gray

Technic Axle 2 No...

Part #: 32062 10× Black

Technic Brick 1 x...

Part #: 32064c 4× Green

Technic Beam 1 x ...

Part #: 32065 4× Black

Technic Axle and ...

Part #: 32068 2× Light Gray

Technic Axle 5

Part #: 32073 2× Black

Technic Bush 1/2 ...

Part #: 32123a 19× Light Gray

Technic Modular C...

Part #: 32137 4× Trans-Dark Blue

Technic Pin Doubl...

Part #: 32138 2× Yellow

Technic Beam 2 x ...

Part #: 32140 2× Black

Plate 1 x 8

Part #: 3460 8× Light Gray

Wheel with Split ...

Part #: 3482 6× Yellow

Tyre Offset Tread...

Part #: 3483 2× Black

Plate 1 x 3

Part #: 3623 2× Yellow

Tyre 43 x 17

Part #: 3634 2× Black

Technic Gear 8 Tooth

Part #: 3647 6× Light Gray

Technic Gear 24 T...

Part #: 3648b 4× Light Gray

Technic Gear 40 T...

Part #: 3649 4× Light Gray

Technic Gear 24 T...

Part #: 3650c 4× Light Gray

Slope Inverted 45...

Part #: 3665 4× Yellow

Slope Inverted 45...

Part #: 3665 4× Black

Plate 1 x 6

Part #: 3666 10× Light Gray

Technic Pin witho...

Part #: 3673 24× Light Gray

Turntable 2 x 2 P...

Part #: 3679 2× Light Gray

Turntable 2 x 2 P...

Part #: 3680 2× Blue

Technic Brick 1 x...

Part #: 3700 4× Yellow

Technic Brick 1 x...

Part #: 3700 12× Black

Technic Brick 1 x...

Part #: 3701 2× Green

Technic Brick 1 x...

Part #: 3701 10× Black

Technic Brick 1 x...

Part #: 3702 8× Black

Technic Brick 1 x...

Part #: 3703 6× Black

Technic Axle 4

Part #: 3705 7× Black

Technic Axle 6

Part #: 3706 8× Black

Technic Axle 8

Part #: 3707 7× Black

Technic Axle 12

Part #: 3708 2× Black

Technic Plate 2 x...

Part #: 3709 4× Light Gray

Plate 1 x 4

Part #: 3710 10× Light Gray

Technic Bush

Part #: 3713 41× Light Gray

Technic Steering ...

Part #: 3736 2× Light Gray

Technic Axle 10

Part #: 3737 4× Black

Technic Plate 2 x...

Part #: 3738 8× Light Gray

Technic Gear Rack...

Part #: 3743 4× Light Gray

Slope Inverted 33...

Part #: 3747a 4× Black

Technic Axle Pin ...

Part #: 3749 16× Light Gray

Plate 2 x 10

Part #: 3832 6× Light Gray

Technic Brick 1 x...

Part #: 3894 8× Black

Technic Brick 1 x...

Part #: 3895 6× Black

Brick Round 2 x 2...

Part #: 3941 8× Black

Bracket 2 x 2 - 2...

Part #: 3956 2× Light Gray

Dish 4 x 4 Invert...

Part #: 3960 2× White

Technic Gear 16 T...

Part #: 4019 4× Light Gray

Plate Round 2 x 2...

Part #: 4032a 2× White

Plate Round 2 x 2...

Part #: 4032a 2× Blue

Plate Special 1 x...

Part #: 4085c 2× Black

Playmat, Test Mat...

Part #: 4127972 1× [No Color/Any Color]

Robotics Inventio...

Part #: 4127999 1× [No Color/Any Color]

Technic Wedge Bel...

Part #: 4185 4× Light Gray

Arm Grab Jaw Hold...

Part #: 4220 2× Yellow

Arm Grab Jaw

Part #: 4221 4× Black

Technic Pin 1/2

Part #: 4274 9× Light Gray

Hinge Plate 1 x 2...

Part #: 4275b 2× Black

Plate 1 x 10

Part #: 4477 6× Light Gray

Technic Axle 3

Part #: 4519 3× Black

Hinge Tile 1 x 2 ...

Part #: 4531 2× Black

Cone 1 x 1 [No To...

Part #: 4589 2× White

Cone 1 x 1 [No To...

Part #: 4589 2× Yellow

Technic Worm Gear

Part #: 4716 2× Black

Wire with Brick 2...

Part #: 5306bc020 4× Black

Wire with Brick 2...

Part #: 5306bc162 2× Black

Brick Separator v1.0

Part #: 6007 1× Dark Gray

Plate Special 1 x...

Part #: 6019 2× Black

Arm Piece with Pi...

Part #: 6048a 2× Black

Creature Body Par...

Part #: 6133 2× Trans-Neon Orange

Plate Round 1 x 1...

Part #: 6141 3× Black

Plate Round 1 x 1...

Part #: 6141 3× Blue

Plate Round 1 x 1...

Part #: 6141 3× White

Technic Axle and ...

Part #: 6536 6× Light Gray

Technic Axle Conn...

Part #: 6538b 4× Light Gray

Technic Axle 1.5 ...

Part #: 6553 2× Light Gray

Technic Pin Long ...

Part #: 6558 8× Black

Technic Gear Diff...

Part #: 6573 1× Dark Gray

Technic Cam

Part #: 6575 2× Light Gray

Tyre 30.4 x 14 VR

Part #: 6578 2× Black

Technic Axle 3 wi...

Part #: 6587 2× Dark Gray

Technic Gear 12 T...

Part #: 6589 5× Light Gray

Tyre 49.6 x 28 VR

Part #: 6594 2× Black

Wheel 49.6 x 28 V...

Part #: 6595 2× White

Technic Beam 1 x ...

Part #: 6629 4× Black

Technic Beam 1 x ...

Part #: 6632 4× Light Gray

Tread Large, Tech...

Part #: 71372 2× Black

Motor, 9V Mini [O...

Part #: 71427c01 2× Light Gray

Rubber Band Small...

Part #: 71509 5× Black

Cable, Serial, fo...

Part #: 71793 1× Light Gray

Hose Rigid 3mm D....

Part #: 75c19 2× Yellow

Technic Gear 24 T...

Part #: 76019 1× White

Transmitter Tower...

Part #: 76091 1× Dark Gray

Hose, Ribbed 7mm ...

Part #: 78c09 4× Dark Turquoise

Hose, Ribbed 7mm ...

Part #: 78c09 4× Black

Hose, Ribbed 7mm ...

Part #: 78c12 4× Purple

Rubber Belt Small...

Part #: 85543 4× White

Technic Rubber Be...

Part #: 85545 3× Blue

Technic Rubber Be...

Part #: 85546 3× Yellow

Sensor, Touch

Part #: 879 2× Light Gray

Hub, RCX 1.0, No ...

Part #: 884b 1× Yellow

CD-Rom, for 9747 ...

Part #: upn0134 1× [No Color/Any Color]

The set includes a variety of Technic parts in Light Gray and Black, making it useful for building functional models and mechanisms. The abundance of Technic pins and bushes is valuable for MOC builders focused on Technic creations.

🛒 Where to Buy

💎 Notable Parts

Light Gray Technic Bush (41x) $2.05

Black Technic Pin with Friction Ridges Lengthwise and Center Slots (25x) $1.25

Light Gray Plate 1 x 2 (20x) $1.00

Black Brick 2 x 2 (20x) $1.00

Black Technic Brick 1 x 4 [3 Pin Holes] (10x) $0.50

Est. BrickLink Part Value

$5.80

💡 MOC Potential

🤖 Advanced robotic arms with customized functions

🚗 Autonomous vehicles with obstacle avoidance

🌳 Automated plant watering system

📰 RCX News

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 8 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

YouTube reviews of the LEGO Mindstorms Robotics Invention System 1.5 (9747-1) are generally neutral and focus on restoration, unboxing used sets, or using the system with modern computers. Reviewers like Nonsense Wars provide overviews of different RIS versions, while channels like Doug's Devices offer advice on compatibility with newer systems.

Using old Lego Mindstorms with modern computers

Doug's Devices • 17.5K views Review

LEGO Mindstorms 3804 Robotics Invention System Version 2.0 Review

Nonsense Wars • 3.9K views Review

Restoring the LEGO Mindstorms Robotics Invention System set

Coder Shah • 3.3K views Review

Community Sentiment

Based on 8 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

5 YouTube reviews

BlockTalk AI Summary

Doug's Devices notes the potential need for a USB IR tower for modern computers, especially for those without a serial port. Nonsense Wars offers comparison reviews of different RIS versions, including 1.0, 1.5, and 2.0, and encourages viewers to like and subscribe for more content.

Reddit Reviews

No Reddit reviews found

YouTube Reviews

5 videos

Using old Lego Mindstorms with modern computers

Doug's Devices

17.5K views Review

LEGO Mindstorms 3804 Robotics Invention System Version 2.0 Review

Nonsense Wars

3.9K views Review

Restoring the LEGO Mindstorms Robotics Invention System set

Coder Shah

3.3K views Review

Lego Mindstorms Robotics Invention System 1,5

Andreas Burckhardt

1.5K views Review

View all 5 on YouTube

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

Inventory Statistics

133

Unique Parts

731

Total Pieces

Minifigures

Inventory Version: 1

Unlock the World of Robotics!
Build the 9747 Robotics Invention System

Robotics Invention System, Version 1.5

📝 Our Take

Ask BlockTalk about this set

🧱 Building Experience

📈 Investment Analysis

⚖ Compare Similar Sets

📦 Full Parts Inventory - 133 unique parts • 731 total pieces

🛒 Where to Buy

💎 Notable Parts

💡 MOC Potential

📰 RCX News

LEGO Star Wars set 3803