Nico De Witte / NeoPixelI2cSlave

I2c slave device to control NeoPixel strings

Dependencies:   NeoPixelString SimplyLog

Example program

#include "mbed.h"
#include "neopixel_string.h"
#include "i2c_device.h"
#include "neopixel_string_factory.h"
#include "neopixel_i2c_daemon.h"

// This must be an SPI MOSI pin.
#define DATA_PIN p5
#define STRING_SIZE 8

#define DEBUG_MODE 1
#include "log.h"

Serial pc(USBTX, USBRX); // tx, rx

int main() {
    pc.baud(115200);
    SimplyLog::Log::i("Neopixel driver loading\r\n");
    
    I2cSettings settings;
    settings.frequency = 100000;
    settings.address = 0x80;

    SimplyLog::Log::i("Slave is working @ %dHz\r\n", settings.frequency);
    SimplyLog::Log::i("Slave is working @ SLAVE_ADDRESS = 0x%x\r\n", settings.address);    
    
    SimplyLog::Log::i("Creating NeoPixel String\r\n");
    NeoPixelString * first_string = NeoPixelStringFactory::createNeoPixelString(DATA_PIN, STRING_SIZE);
    
    SimplyLog::Log::i("Creating I2cDevice\r\n");
    I2cDevice i2c(p28, p27, &settings);
    
    SimplyLog::Log::i("Creating NeoPixel I2c Daemon\r\n");
    NeoPixelI2cDaemon neo(&i2c, LED1);
    neo.attachPixelString(first_string);

    SimplyLog::Log::i("Listening in blocking mode\r\n");
    neo.listen(true);
    
    while(1) { }
}

i2c_device.h@2:e0269262d1f2, 2015-10-25 (annotated)

Committer:
dwini
Date:
Sun Oct 25 11:36:21 2015 +0000
Revision:
2:e0269262d1f2
Parent:
0:3a31c84ed525 
Add alive led to i2c daemon

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dwini 0:3a31c84ed525 1 #pragma once
dwini 0:3a31c84ed525 2
dwini 0:3a31c84ed525 3 #include <mbed.h>
dwini 0:3a31c84ed525 4
dwini 0:3a31c84ed525 5 struct I2cSettings {
dwini 0:3a31c84ed525 6 int address;
dwini 0:3a31c84ed525 7 int frequency;
dwini 0:3a31c84ed525 8 int buffer;
dwini 0:3a31c84ed525 9 };
dwini 0:3a31c84ed525 10
dwini 0:3a31c84ed525 11 class I2cDevice : public I2CSlave {
dwini 0:3a31c84ed525 12 private:
dwini 0:3a31c84ed525 13 I2cSettings* settings;
dwini 0:3a31c84ed525 14
dwini 0:3a31c84ed525 15 public:
dwini 0:3a31c84ed525 16 I2cDevice(PinName sda, PinName scl, I2cSettings* settings);
dwini 0:3a31c84ed525 17 };