The LEGO DACTA 70909 interface controller has 8 inputs, 8 outputs, 1 on input and 1 red stop button which are controlled from an RS232 interface. It has an Input of 9-12V~ 50/60 Hz 7VA and an Output of 9V DC total max. 5VA

LEGO Dacta is a hands-on learning activity to supplement regular science instruction in the areas of:   motion, power, energy and electricity. It also includes connections to maths, technology, language arts and social studies. Students learn by doing. LEGO Dacta encourages students to explore, investigate, problem solve and become enthusiastic inventors!

The founder of LEGO was Ole Kirk Christiansen. He was a master carpenter and joiner in the village of Billund, Denmark.  Ole Kirk Christiansen set up his LEGO and toy business in 1932. 26 years later the founder of LEGO died and his son, Godfred Kirk Christiansen took over the company. The Dacta division started in 1980. LEGO Dacta kits hit the market in 1998. The kits were a huge hit.

Instructions for use:
1.  Install the LEGO Dacta software according to the directions.
2.  Plug the transformer into an outlet and connect the other end to the interface.
3. Hook up the interface cable (the grey cable) to the computer.
4.  Take the connecting lead from the motor and hook it up to Output "A" (the black wire with metal plates) onto the interface.
5.  Click on the LEGO Dacta icon on your computer screen.
6.  Click file on the menu and choose new project. (Make sure you have a Command Center, if you don't, click Window from the menu and choose Command Center).
7.  Drag the motor symbol to Output "A" on your screen, then drag Lamp to Output "B", and last drag Sound to Output "C".
8.  Click the circles above the motor, lamp and sound to make sure all connections are working.
It is now ready to start Programming the constructions.

This controller is from The Perse School in Cambridge and was used to control motorised lego models via computer. We are extremely grateful to Simon Judd of The Perse School for donating this.