mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
84 lines
1.4 KiB
C++
84 lines
1.4 KiB
C++
//
|
|
// FILE: PCF8591_demo.ino
|
|
// AUTHOR: Rob Tillaart
|
|
// PURPOSE: demo
|
|
// DATE: 2020-07-22
|
|
// URL: https://github.com/RobTillaart/PCF8591
|
|
|
|
|
|
#include "PCF8591.h"
|
|
|
|
PCF8591 dev(0x48);
|
|
|
|
|
|
void setup()
|
|
{
|
|
Serial.begin(115200);
|
|
Serial.println(__FILE__);
|
|
|
|
Wire.begin();
|
|
Wire.setClock(100000UL);
|
|
|
|
#if defined (ESP8266) || defined(ESP32)
|
|
dev.begin(21, 22);
|
|
#endif
|
|
dev.begin();
|
|
}
|
|
|
|
|
|
void loop()
|
|
{
|
|
test_DAC();
|
|
delay(1000);
|
|
test_ADC_mode(0);
|
|
delay(1000);
|
|
|
|
// differential modes, check datasheet
|
|
test_ADC_mode(1);
|
|
delay(1000);
|
|
test_ADC_mode(2);
|
|
delay(1000);
|
|
test_ADC_mode(3);
|
|
delay(1000);
|
|
}
|
|
|
|
|
|
void test_DAC()
|
|
{
|
|
Serial.println(__FUNCTION__);
|
|
Serial.println("--------------");
|
|
dev.enableDAC();
|
|
for (int i = 0; i < 5000; i++)
|
|
{
|
|
uint8_t val = 127 + 127 * sin(i * 0.01);
|
|
Serial.println(val);
|
|
dev.analogWrite(val);
|
|
delay(1); // just to slow the effect
|
|
}
|
|
dev.disableDAC();
|
|
Serial.println();
|
|
}
|
|
|
|
|
|
void test_ADC_mode(uint8_t mode)
|
|
{
|
|
uint8_t channels[] = {4, 3, 3, 2 }; // channels per mode
|
|
Serial.println(__FUNCTION__);
|
|
Serial.println("--------------");
|
|
Serial.println("CH0\tCH1\tCH2\tCH3");
|
|
for (int m = 0; m < 20; m++)
|
|
{
|
|
for (uint8_t i = 0; i < channels[mode]; i++)
|
|
{
|
|
Serial.print(dev.analogRead(i, mode));
|
|
Serial.print('\t');
|
|
}
|
|
Serial.println();
|
|
}
|
|
Serial.println();
|
|
}
|
|
|
|
|
|
// -- END OF FILE --
|
|
|