Advertisement

Two-Wire Powered Sensors

  • Michael Gasperi
  • Philippe “Philo” Hurbain

Abstract

The original LEGO MINDSTORMS brick, the RCX, used a two-wire powered sensor interface. The NXT has a backward compatibility mode with the old RCX sensors, and that mode offers some advantages for homebrew sensors that need higher voltages than the 4.3V supply described in Chapter 8. It’s a natural choice for sensors that need to take full advantage of the 5V analog-to-digital conversion. Conveniently, the two wires are the same two wires you already used for passive sensors: the white and black wires in the NXT cable, or pins 1 and 2 on the port connector.

Keywords

Voltage Sensor Shunt Resistor Power Sensor Passive Sensor Anode Cathode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Michael Gasperi and Philippe “Philo” Hurbain 2009

Authors and Affiliations

  • Michael Gasperi
  • Philippe “Philo” Hurbain

There are no affiliations available

Personalised recommendations