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Read-Sensor-Resistances
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Update espVoltmeter.ino

This commit is contained in:
Eric Yu 2022-08-15 13:54:42 -07:00
parent 23cf5d8714
commit c8dcddd2b5
1 changed files with 14 additions and 37 deletions
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49
espVoltmeter/espVoltmeter.ino
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@ -1,57 +1,34 @@
// manually define all the An ports on ESP32 board
#if defined(ESP32)
#define A0 (36)
#define A1 (39)
#define A2 (34)
#define A3 (35)
#define A4 (32)
#define A5 (33)
#endif
#define A0 (36)
#define A1 (39)
#define A2 (34)
#define A3 (35)
#define A4 (32)
#define A5 (33)
// define the divident of sizeof()'s return value
#if defined(ESP32)
// define the divident of sizeof()'s return value, to the correct length of our list
#define SIZE_DIV 4 // for esp32, the resolution is doubled than the usual arduino board, so we double the factor, too
#else
#define SIZE_DIV 2
#endif
#define WAIT_TIME 1000UL
#define SENSOR1 36
// FILE *f = fopen("file.txt", "w");
int pins[] = {A0, A1, A2, A3, A4, A5};
#define WAIT_TIME 1000UL
int pins[] = { A0, A1, A2, A3, A4, A5 };
int i, j;
unsigned long currTime; // non-blocking time tracker
void setup() {
Serial.begin(19200);
currTime = millis();
analogReadResolution(12);
// adcAttachPin(A0);
// analogSetClockDiv(255);
Serial.println();
}
void loop() {
// we might need analogSetAttenuation to make the measurement more accurate and less noisy?
if (millis() - currTime >= WAIT_TIME) { // non-blocking time delay
// Serial.println();
Serial.print("[");
for (i = 0; i < sizeof(pins)/SIZE_DIV; i++) {
// float volts = analogRead(pins[i]);
// float result = volts * 3.3 / 4095;
// Serial.print(result);
float volts = analogReadMilliVolts(pins[i]);
Serial.print(volts);
// Serial.print(61319 * (3.3/volts - 1));
if (i != sizeof(pins)/SIZE_DIV - 1) {
for (i = 0; i < sizeof(pins) / SIZE_DIV; i++) {
Serial.print(analogReadMilliVolts(pins[i]), DEC);
if (i != sizeof(pins) / SIZE_DIV - 1) { // fence-post the list print
Serial.print(", ");
}
}
Serial.println("]");
// Serial.println(analogReadMilliVolts(SENSOR1));
currTime = millis();
}
}