GP2D02 to BrainStem Example

Related
Products

Product image for Brainstem GP 1.0 Module

Product image for 4X AA Battery Pack w/Connector

Introduction
Circuit Schematic
Source Code
Notes

Introduction

In this example, a BrainStem microcontroller uses a Sharp GP2D02 detector to measure distances to obstacles. The program uses the built-in Sharp GP2D02 driver in the BrainStem GP 1.0 module.

Contents

Circuit Schematic

The following schematic uses the BrainStem GP2D02 interface cable to plug the GP2D02 directly into the BrainStem GP1.0 module. There is no need to use the diode for current limiting protection as it is already included on the GP2D02 port of the GP 1.0 module. Additionally, this circuit uses the 4 AA battery pack to power the circuit.

Contents

Source Code

This code uses TEA syntax. It runs with the current version of the steep compiler which is included in the BrainStem console application. This example requires build 5 or higher of the console application and associated libraries which is available in the Acroname Download Center .

/* gp2d02-6.tea */ #include <aCore.tea> #include <aPrint.tea> #include <aGP.tea> void main(void) { int j; while (1) { // take the reading j = aGP_ReadGP2D02(); // display the result aPrint_IntDec(j); aPrint_Char('\n'); // sleep for 0.5 seconds aCore_Sleep(5000); } }

Contents

Notes

This example shows how to interface the Sharp GP2D02 detector using a TEA program running on the module. The GP 1.0 Application is an example of a program that interfaces with the GP2D02 from the host computer and displays the information visually.

Revision History:

2002-01-07: Example Created.