28139 Parallax Inc, 28139 Datasheet - Page 187

• Manufacturer Part Number: 28139
• Description: KIT REMOTE IR FOR BOE-BOT W/TEXT
• Manufacturer: Parallax Inc

Specifications of 28139

• Accessory Type: IR Remote
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Boe-Bot®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Appendix B: BS2 to BS2 IR Messages
This appendix/activity demonstrates how to send messages from one BASIC Stamp to
another with IR and a custom protocol. This technique lends itself to IR communication
between BASIC Stamp modules, Boe-Bot robots, etc.
Parts and Equipment
Since this activity involves beaming information from one BASIC Stamp to another with
infrared, you will need at least two BASIC Stamp modules and two carrier boards. The
parts listed below are for unidirectional communication.
communication, you will need twice the number of 220 Ω resistors, IR receivers, and IR
LEDs.
(2) Board of Education platforms with BASIC Stamp modules
(2) 220 Ω resistors (red-red-brown)
(1) IR receiver
(1) IR LED
Transmit and Receive Circuits
Figure B-1 shows the transmitter board's IR transmit circuit and the receiver board's IR
receive circuit.
√
Connect your IR LED and IR detector circuits to separate BASIC Stamp 2
modules as shown in Figure 1.7.
If you have two Boe-Bot robots with their IR object detection circuits built-up, you're
ready to go and can skip to the section entitled Developing the IR Communication
Protocol.
For bidirectional