The popular SX Tech Tool Kit  is an excellent starting point to develop SX projects with Parallax's SX-Key programming tool. Upon receiving the kit, you will be able to program SX chips within the hour. (A 6-9 VDC power supply is required.)

The SX-Key is Parallax's primary development tool for the SX line of microcontrollers, supporting every chip that is commercially available. Using the free SX-Key software, the SX-Key programming tool can program SX chips in-system and perform in-circuit source-level debugging. Also at the user's fingertips is an on-board programmable clock. The frequency output of this clock is adjusted from the software with a slider bar between 2.75 MHz and 100 MHz. The software operates on Win98/NT/2K/XP/Vista platforms.

Kit Includes:

• SX Key 
• Programming the SX Microcontroller by Gunther Daubach
• SX Tech Board
• (2) SX 28AC/DP 50 MIPS chips
• (1) Murata 50 MHz resonator
• (1) Murata 4 MHz resonator
• SX-Key USB Manual v2.0
• USB Cable

Key Specifications:

• 6 to 9 VDC power supply required
• One availible USB 1.1 or 2.0 port required

Downloads & Resources:
SX Key USB Manual (.pdf)
Robo B Schematic (.pdf)
Robo B Alternative Source Code by Jon Williams (.SXB)