/* Example for analogContinuousRead
It measures continuously the voltage on pin A9,
Write v and press enter on the serial console to get the value
Write c and press enter on the serial console to check that the conversion is taking place,
Write t to check if the voltage agrees with the comparison in the setup()
Write s to stop the conversion, you can restart it writing r.
*/
#include <ADC.h>
#include <ADC_util.h>
ADC *adc = new ADC(); // adc object
#if defined(ADC_TEENSY_LC) // teensy LC
#define PINS 13
#define PINS_DIFF 2
uint8_t adc_pins[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12};
uint8_t adc_pins_diff[] = {A10, A11};
#elif defined(ADC_TEENSY_3_0) // teensy 3.0
#define PINS 14
#define PINS_DIFF 4
uint8_t adc_pins[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13};
uint8_t adc_pins_diff[] = {A10, A11, A12, A13};
#elif defined(ADC_TEENSY_3_1) || defined(ADC_TEENSY_3_2) // teensy 3.1/3.2
#define PINS 21
#define PINS_DIFF 4
uint8_t adc_pins[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
A14, A15, A16, A17, A18, A19, A20
};
uint8_t adc_pins_diff[] = {A10, A11, A12, A13};
#elif defined(ADC_TEENSY_3_5) // Teensy 3.5
#define PINS 27
#define PINS_DIFF 2
uint8_t adc_pins[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26
};
uint8_t adc_pins_diff[] = {A10, A11};
#elif defined(ADC_TEENSY_3_6) // Teensy 3.6
#define PINS 25
#define PINS_DIFF 2
uint8_t adc_pins[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24
};
uint8_t adc_pins_diff[] = {A10, A11};
#elif defined(ADC_TEENSY_4_0) // Teensy 4.0
#define PINS 14
#define DIG_PINS 10
#define PINS_DIFF 0
uint8_t adc_pins[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13};
uint8_t adc_pins_dig[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9};
uint8_t adc_pins_diff[] = {};
#elif defined(ADC_TEENSY_4_1) // Teensy 4.1
#define PINS 8
#define DIG_PINS 10
#define PINS_DIFF 0
uint8_t adc_pins[] = {A0, A1, A2, A3, A4, A5, A6, A7};
uint8_t adc_pins_dig[] = {A0, A1, A2, A3, A4, A5, A6, A7, A8, A9};
uint8_t adc_pins_diff[] = {};
#endif // defined
void setup()
{
pinMode(LED_BUILTIN, OUTPUT);
for (int i = 0; i < PINS; i++)
{
pinMode(adc_pins[i], INPUT);
}
Serial.begin(9600);
///// ADC0 ////
adc->adc0->setAveraging(1); // set number of averages
adc->adc0->setResolution(12); // set bits of resolution
adc->adc0->setConversionSpeed(ADC_CONVERSION_SPEED::HIGH_SPEED); // change the conversion speed
adc->adc0->setSamplingSpeed(ADC_SAMPLING_SPEED::HIGH_SPEED); // change the sampling speed
////// ADC1 /////
#ifdef ADC_DUAL_ADCS
adc->adc1->setAveraging(1); // set number of averages
adc->adc1->setResolution(12); // set bits of resolution
adc->adc1->setConversionSpeed(ADC_CONVERSION_SPEED::HIGH_SPEED); // change the conversion speed
adc->adc1->setSamplingSpeed(ADC_SAMPLING_SPEED::HIGH_SPEED); // change the sampling speed
#endif
delay(500);
}
int value = 0;
int pin = 0;
uint32_t lC = 0;
uint32_t lShow = 0;
elapsedMillis lT = 0;
void loop()
{
lC++;
if ( lT >= 1000 ) {
lShow = lC;
lC = 0;
}
int i;
for (i = 0; i < PINS; i++)
{
value = adc->analogRead(adc_pins[i]); // read a new value, will return ADC_ERROR_VALUE if the comparison is false.
if ( lShow ) {
Serial.print("A");
Serial.print(i);
Serial.print(": ");
Serial.print(value * 3.3 / adc->adc0->getMaxValue(), 2);
Serial.print(". ");
if (i == 9)
{
Serial.println();
}
else if (i == 11)
{
Serial.print("\t");
}
else if (i == 13)
{
Serial.print("\t");
}
else if (i == 22)
{
Serial.println();
}
}
}
if ( lShow ) {
Serial.printf("\n\t%u pins read %u times per second \n", i, lShow );
lShow = 0;
lT = 0;
}
// the actual parameters for the temperature sensor depend on the board type and
// on the actual batch. The printed value is only an approximation
//Serial.print("Temperature sensor (approx.): ");
//value = adc->analogRead(ADC_INTERNAL_SOURCE::TEMP_SENSOR); // read a new value, will return ADC_ERROR_VALUE if the comparison is false.
//Serial.print(": ");
//float volts = value*3.3/adc->adc0->getMaxValue();
//Serial.print(25-(volts-0.72)/1.7*1000, 2); // slope is 1.6 for T3.0
//Serial.println(" C.");
// Print errors, if any.
if (adc->adc0->fail_flag != ADC_ERROR::CLEAR)
{
Serial.print("ADC0: ");
Serial.println(getStringADCError(adc->adc0->fail_flag));
}
#ifdef ADC_DUAL_ADCS
if (adc->adc1->fail_flag != ADC_ERROR::CLEAR)
{
Serial.print("ADC1: ");
Serial.println(getStringADCError(adc->adc1->fail_flag));
}
#endif
adc->resetError();
}
