Thomas Butler / microbitdisplayUSBSerial

Program to demonstrate NXP semiconductor's PCA9955B chip working with the BBC micro:bit

Dependencies:   PCA995xA microbit

Fork of PCA9955A_Hello by InetrfaceProducts NXP

This is a simple program that allows you to control each port on a PCA9955B connected over i2c to a BBC micro:bit using a simple USB serial communication program.

I've written it to work with the 2 digit SMD soldering kit I designed. Drop me an email at tb942@hotmail.co.uk for further info on that...

main.cpp

Committer:
nxp_ip
Date:
2015-02-25
Revision:
0:ec8cc77909e5
Child:
1:8b5c26cc269c

File content as of revision 0:ec8cc77909e5:

#include "mbed.h"

#include "PCA9955A.h"
PCA9955A    led_cntlr( p28, p27, 0x02 );    //  SDA, SCL, Slave_address(option)

int main1()
{
    led_cntlr.current( ALLPORTS, 1.0 ); //  Set all ports output current 100%

    while(1) {
        for ( int port = 0; port < led_cntlr.number_of_ports(); port++ ) {
            for ( int i = 1; i <= 100; i++ ) {
                led_cntlr.pwm(  port, (float)i / 100.0 );
                wait( 0.01 );
            }
        }
        led_cntlr.pwm( ALLPORTS, 0.0 ); //  Set all ports output PWM 0%
    }
}