stimuli

sensor control program

response

actuator

stimuli

sensor control program

response

actuator

1. Other systems are part of the environment

2. Communicate with other systems a.  Mobile robots b.  Stationary computers

symbol

symbol to signal signal to symbol

symbol

wired or wireless

RCX Infrared Transmitter/Receiver, IR Tower

NXT communication

NXT communication

USB 2.0

Point-to-point

Serial

Master/slave

12 M bit/sec

Four wires

Bluetooth 2.0

Radio waves

Up to 10 m

3 M bit/sec

Embedded Java

The leJOS API classes provide wired and wireless communication:

USB

Bluetooth

USBSend/USBReceive

BTSend/BTReceive

PC NXT

USB cable

streams outDat

inDat dIn dOut

USBsend USBreceive

1. Establish connection

2. Set up data streams

3. Use data streams

Can also use nxjpcc and nxjpc

1. Establish connection

2. Set up data streams

3. Use data streams

PC NXT

radiowaves

streams dos dis

dis dos

BTsend BTreceive

NXT to NXT wireless

Situated communication

Legway