Documentation: CompWaveform_v0_32.ino

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CompWaveform_v0_32.ino

How to Use
  Show how to use API of class NexWaveform.

Author
  Wu Pengfei (email:pengf.nosp@m.ei.w.nosp@m.u@ite.nosp@m.ad.c.nosp@m.c)

Date
  2015/8/11 2016/12/25 bring HMI up to v0.32 to avoid too old issues by Patrick Martin, no other changes made

Copyright
  Copyright (C) 2014-2015 ITEAD Intelligent Systems Co., Ltd.
  This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

#include "Nextion.h"
#define LEVEL_HIGH (30)
#define LEVEL_LOW (0)
#define CH0_OFFSET (40 - LEVEL_HIGH/2)
#define CH1_OFFSET (CH0_OFFSET + 40 * 1)
#define CH2_OFFSET (CH0_OFFSET + 40 * 2)
#define CH3_OFFSET (CH0_OFFSET + 40 * 3)
NexWaveform s0 = NexWaveform(0, 1, "s0");
static uint8_t ch0_data = LEVEL_LOW;
static uint8_t ch1_data = LEVEL_LOW;
static uint8_t ch2_data = LEVEL_LOW;
static uint8_t ch3_data = LEVEL_LOW;
void setup(void)
{
nexInit();
dbSerialPrintln("setup done");
}
void loop(void)
{
static uint32_t started = 0;
if (millis() - started >= 2000)
{
started = millis();
if (LEVEL_HIGH == ch0_data)
{
ch0_data = LEVEL_LOW;
}
else
{
ch0_data = LEVEL_HIGH;
}
}
ch1_data = ch0_data + random(0, 2);
ch2_data = ch0_data + random(0, 5);
ch3_data = ch0_data + random(0, 8);
s0. addValue(0, CH0_OFFSET + ch0_data);
s0.addValue(1, CH1_OFFSET + ch1_data);
s0.addValue(2, CH2_OFFSET + ch2_data);
s0.addValue(3, CH3_OFFSET + ch3_data);
}