Editing Lego Mindstorms (section)

==Robotics Discovery Set, Droid Developer Kit, and Dark Side Developer Kit==
The Robotics Discovery Set was a more affordable and simpler package than the Robotics Invention Set. Instead of being based on the RCX, it had its own programmable brick called the Scout. An even simpler version of the Scout would be featured in two ''Star Wars''-themed Mindstorms sets.

===Scout===
Lego also released a blue computer called the Scout, which has 2 sensor ports, 2 motor ports (plus one extra if linked with a Micro Scout using a [[fiber-optic cable]]), and a built-in light sensor, but no PC interface. It comes with the Robotics Discovery Set. The Scout can be programmed from a collection of built-in program combinations. In order to program the Scout, a user must enable "power mode" on it. The Scout can store one program.

The Scout is based on a [[Toshiba]] microcontroller with 32&nbsp;KB of ROM and 1&nbsp;KB of RAM, where about 400 bytes are available for user programs. Due to the extremely limited amount of RAM, many predefined subroutines were provided in ROM. The Scout only supports passive external sensors, which means that only touch, temperature and other unpowered sensors can be used. The [[analog-to-digital converter]]s used in the Scout only have a resolution of 8 bits, in contrast to the 10-bit converters of the RCX.<ref>{{cite web|url=http://mindstorms.lego.com/products/rds/hackers.asp|archive-url=https://web.archive.org/web/20010210104326/http://mindstorms.lego.com/products/rds/hackers.asp|url-status=dead|archive-date=10 February 2001|title=Robotics Discovery Set: Info for Hackers|date=10 February 2001}}</ref>

There was a plan for Lego to create a booster set that allows programming the Scout from a computer with software such as RCX code. However, due to the complexity of this project, it was abandoned.

The RCX can control the Scout brick using the "Send IR Message" program block. The RCX does all of the controlling, and therefore can be programmed with the PC, while the Scout accepts commands. The Scout brick must have all of its options set to "off" during this process.

===Micro Scout===
The Micro Scout was added as an entry-level to Lego robotics. It is a very limited Pbrick with a single built-in light sensor and a single built-in motor. It has seven built-in programs and can be controlled by a Scout, Spybotics or RCX unit using VLL. Like the Scout, the Micro Scout is also based on a microcontroller from [[Toshiba]].

The unit was sold as part of the Droid Developer Kit (featuring [[R2-D2]]) and later the Dark Side Developer Kit (featuring an [[AT-AT|AT-AT Imperial Walker]]).